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    • 专利摘要:
    flow control layout and method. the present invention relates to the flow control arrangement including a housing defining one or more openings therein; an alignable and unalignable valve structure with one or more openings in the housing; and one or more plugs, one in each of one or more openings, each plug being reducible by one or more exposure to downhole fluids and applied dissolution fluids and method for performing a series of operations.
    公开号:BR112012022367B1
    申请号:R112012022367
    申请日:2011-03-03
    公开日:2020-01-14
    发明作者:Newton Daniel；Xu Yang
    申请人:Baker Hughes Inc；
    IPC主号:
    专利说明:

    Descriptive Report on the Invention Patent for FLOW CONTROL PROVISION AND METHOD.
    CROSSED REFERENCE [0001] This application claims the benefit of the filing date of United States Patent Application Serial Number 12 / 718,510, filed on March 5, 2010, entitled FLOW CONTROL PROVISION AND METHOD.
    BACKGROUND [0002] In the technique of drilling and completion, it has long been known to place openings in a tubular column to provide fluid access through the tubular column in a generally radial direction. Alternatively said, these openings allow fluid communication between the tubular column and a well hole wall (coated or raw well). It is also known for an extended period to use valves that can be opened or closed according to these openings to selectively prevent the fluid movement noted above.
    [0003] A ubiquitous and reliable example of the precedent is a sliding sleeve arrangement. Someone of ordinary skill will immediately become familiar with the terms sliding sleeve will recognize that this arrangement includes a housing having an opening, a translatable glove with respect to the housing to completely align with the opening or aligning a hole with the opening and a spring to drive the glove to a selected position (open or closed).
    [0004] Commonly, the observed arrangement extends into the hole with the glove in a closed position, operations are undertaken, the glove is opened with a tool that is operated separately in order to open the glove; other operations are undertaken; and another tool is used to close the glove. This process is well accepted and used many times.
    Petition 870190079612, of 16/08/2019, p. 5/45
    2/34 [0005] Since every move inside the well bore is an expensive business, the technique is always receptive to reductions in the number of executions required for a given set of operations.
    [0006] A flow control arrangement includes a housing defining in it one or more openings, an alignable and unalignable valve structure with one or more openings in the housing and one or more plugs, one in each of the one or more openings, each plug being reducible by one or more exposures to downhole fluids and applied dissolution fluids.
    [0007] A method for carrying out a series of downhole operations with a reduced number of mechanical intervention processing, including processing the arrangement of a housing defining one or more openings, an alignable and unalignable valve structure with one or more openings in the housing; and one or more plugs, one in each of one or more openings, each plug being reducible by one or more exposures to downhole fluids and dissolution fluids applied to a target depth; conducting a downhole operation requiring the housing to have fluid with radially restricted permeability, reducing the plug; conducting a downhole operation requiring fluid pressure communication through one or more openings; and intervention, mechanically to close the valve structure, thus making one or more openings of the arrangement radially impermeable.
    BRIEF DESCRIPTION OF THE DRAWINGS [0008] Referring now to the drawings, in which similar elements are numbered identically in the various figures:
    figure 1 is a cross-sectional view of a flow control arrangement according to the present display;
    Petition 870190079612, of 16/08/2019, p. 6/45
    3/34 Figure 2 is a microphotograph of a powder 210 as described herein, which has been incorporated into an encapsulating material and sectioned;
    figure 3 is a schematic illustration of an exemplary embodiment of a powder particle 12 as it will appear in an exemplary sectional view represented by section 4 - 4 of figure 3;
    figure 4 is a photomicrograph of an exemplary form of compact powder, as disclosed herein;
    Figure 5 is a schematic view of an exemplary embodiment of a compact powder made using a powder having single layer powder particles as will be seen taken along section 6 - 6 in Figure 5;
    figure 6 is a schematic view illustrating another exemplary embodiment of a compact powder made using a powder having multi-layered powder particles as will appear taken along section 6 - 6 in figure 5; and Figure 6 is a schematic illustration of a change in a compact powder property as disclosed herein, as a function of time and a change in the condition of the compact environment.
    DETAILED DESCRIPTION [0009] Referring to figure 1, a flow control arrangement 10 is illustrated to comprise a housing 12 having one or more openings 14. The one or more openings 14 are temporarily made restrictive by plug 16. The degree Permissible fluid permeability is related to the operations that will be performed using plug 16. The fluid permeability will oscillate from impermeable to any selected permeability. Finally, arrangement 10 includes a valve structure 18, which can, in one hand
    Petition 870190079612, of 16/08/2019, p. 7/45
    4/34 dality, be a sliding glove, as illustrated. The sliding sleeve 18 in the illustrated embodiment further includes one or more holes 20 which are alignable and unalignable with one or more openings 14, as desired.
    [00010] The plug (s) 16 can be constructed of a number of materials, including, but not limited to, dissolvable metals, such as magnesium, aluminum, magnesium alloy, aluminum alloy, etc., materials dissolvable polymers, such as the HYDROCENETM polymer, available from 5 droplax, Srl, located in Altopascia, Italy, polylactide polymer (PLA), Nature WorksTM 4060D polymer, a division of Cargill Dow LLC; TLF-6267 polyglycolic acid (PGA) from DuPont Specialty Chemicals;
    polycaprolactams and mixtures of PLA and PGA, solid acids, such as sulfamic acid, trichloroacetic acid and citric acid, held together with a wax or other suitable binder material, polyethylene homopolymers and paraffin waxes; polyalkylene oxides, such as polyethylene oxides, and polyalkylene glycols, such as polyethylene glycols (these polymers may be preferred in water-based drilling fluids, because they are slightly soluble in water) and natural materials, such as limestone, etc., each of which is selectable and / or configurable to be reducible (that is, degradable within a permeability range to complete the plug dissolution) based on one or more naturally occurring exposures with bottom fluids well and exposure to selectively distributed fluids. For example, selected materials may dissolve after exposure to natural well fluids, drilling mud or acids, after a selected period of time. An engineering material considered for use as a plug (s) 16 is a high strength soluble material. These lightweight, high strength, selective and controllably degradable materials include powders
    Petition 870190079612, of 16/08/2019, p. 8/45
    5/34 sintered compact, fully dense, sintered powder compact formed from powder coated materials that include multiple light particle cores and core materials having multiple single layer and multiple layer nanoscale coatings. These compact powders are made of coated metallic powders that include various nuclei and light, electrochemically active, high-strength particle cores (for example, having relatively higher standard oxidation potentials), such as electrochemically active metals, which are dispersed within of a cellular nanomatrix, formed of several layers of metallic nanoscale coating of metallic coating materials and are particularly useful in well bore applications. These compact powders provide a unique and advantageous combination of mechanical strength properties, such as compression and shear strength, low density and selectable and controllable corrosion properties, particularly fast and controlled dissolution in various well bore fluids. For example, the coating layers and particle cores of these powders can be selected to provide sintered compact powders, suitable for use as engineering materials with a compressive strength and shear strength comparable to various other engineering materials, including carbon, steel stainless steel and alloy steels, but which also have a low unevenness comparable with various polymers, elastomers, low-density porous ceramics and composite materials. As yet another example, these powders and compact powder materials can be configured to provide selectable and controllable degradation or disposal in response to a change in an environmental condition, such as a transition from a very low dissolution rate to a dissolution rate very quick in response to a change in a property or condition of a nearby downhole
    Petition 870190079612, of 16/08/2019, p. 9/45
    6/34 to an article formed from the compact, including a change of ownership in a downhole fluid that is in contact with the compact powder. The selectable and controllable degradation or disposal characteristics described also allow dimensional stability and strength of articles, such as downhole tools or other components, made from these materials, to be maintained until they are no longer needed, at which point a predetermined environmental condition, such as a downhole condition, including downhole fluid temperature, pressure or pH value, can be changed to promote its removal through rapid dissolution. These coated powders and compact powders and engineering materials formed therefrom, as well as methods of manufacturing them are described below.
    [00011] Referring to figure 2, a metal powder 210 includes a plurality of coated metal powder particles 212. Powder particles212 can be formed to provide a powder 210, including free-flowing powder, which can be spilled or otherwise. arranged in all manner of shapes or molds (not shown), having all shapes and sizes and shapes that can be used to mold compact powders 400 (figures 5 and 6, as described here, which can be used as, or for use in the manufacture of, various articles of manufacture, including various tools and downhole components.
    [00012] Each of the metal powder particles, coated with powder 210, includes a particle core 214 and a metallic coating layer 216 arranged on the particle core 214. The particle core 214 includes a core material 218. The material core 218 can include any material suitable for forming the particle core 214, which provides powder particle 212 that can be sintered to form a light, high strength compact
    Petition 870190079612, of 16/08/2019, p. 10/45
    7/34
    400 having selectable and controllable dissolution characteristics. Suitable core materials include electrochemically active metals, having a standard oxidation potential greater than or equal to that of Zn, including Mg, Al, Mn or Zn or a combination thereof. These electrochemically active metals are very reactive with a number of common downhole fluids, including any number of ionic fluids or highly polar fluids, such as those containing various chlorides. Examples include fluids comprising potassium chloride (KCl), hydrochloric acid (HCl), calcium chloride (CaCb), calcium bromide (CaBr2) or zinc bromide (ZnBr2). Core material 218 may also include other metals that are less electrochemically active than Zn or non-metallic materials or a combination thereof. Suitable non-metallic materials include ceramics, compounds, glass or carbons or a combination thereof. Core material 218 can be selected to provide a high dissolution rate in a predetermined downhole fluid, but can also be selected to provide a relatively low dissolution rate, including zero dissolution, where the dissolution of the nanomatrix material causes that the particle core 214 is mined and released from the particulate compact at the interface with the downhole fluid, so that the effective rate of dissolving particle compacts made using particle cores 214 of these core materials 218 is high, although the core material 218 itself may have a low dissolution rate, including core materials 220, which may be substantially insoluble in the downhole fluid.
    [00013] With respect to electrochemically active metals such as 218 core materials, including Mg, Al, Mn or Zn, these metals can be used as pure metals or in any combination of each other, including various alloy combinations of these materials.
    Petition 870190079612, of 16/08/2019, p. 11/45
    8/34 ais, including binary, tertiary or quaternary alloys of these materials. These combinations can also include compounds from these materials. In addition, in addition to combinations of one another, Mg, Al, Mn or Zn 18 core materials may also include other constituents, including various alloy additions, to alter one or more properties of the 214 particle cores, such as through improving strength, reducing density, or changing the dissolution characteristics of core material 218.
    [00014] Among electrochemically active metals, Mg, as a pure metal or an alloy or composite material, is particularly useful, because of its low density and ability to form high-strength alloys, as well as its high degree of electrochemical activity , as it has a higher standard oxidation potential than Al, Mn or Zn. Mg alloys include all alloys that have Mg as an alloy constituent. Mg alloys that combine with other electrochemically active metals, as described herein, as alloy constituents are particularly useful, including binary Mg-Zn, Mg-Al and Mg-Mn alloys, as well as tertiary Mg-Zn-Y and Mg-Al-X, where X includes Zn, Mn, Si, Ca or Y, or combinations thereof. Such MGAl-X alloys may include, by weight, about 85% Mg, up to about 15% Al and up to about 5% X. The particle core 214 and core material 218, and particularly electrochemically active metals, including Mg, Al, Mn or Zn or combinations thereof, may also include a rare earth element or combination of rare earth elements. As used herein, rare earth elements include Sc, Y, La, Ce, Pr, Nd or Er or a combination of rare earth elements. Where present, a rare earth element, or combinations of rare earth elements, may be present, in weight, in an amount of about 5% or less.
    [00015] The particle core 214 and the core material 218 have
    Petition 870190079612, of 16/08/2019, p. 12/45
    9/34 a melting temperature (Tp). As used herein, Tp includes the lowest temperature at which incipient melting or liquefaction or other forms of partial melting occur within a core material 218, regardless of whether the core material 218 comprises a pure metal, an alloy with multiple phases having different melting temperatures or a composite of materials having different melting temperatures. [00016] Particle cores 214 can have any particle size or particle size range or suitable particle size distribution. For example, particle cores 214 can be selected to provide an average particle size that is represented by a normal or Gaussian-like distribution around a mean, as generally illustrated in Figure 2. In another For example, particle cores 214 can be selected or mixed to provide a multimodal particle size distribution, including a plurality of average particle nucleus sizes, such as, for example, a homogeneous bimodal distribution of average particle sizes. The selection of the particle core size distribution can be used to determine, for example, the particle size and interparticle spacing 215 of particles 212 of powder 210. In an exemplary embodiment, particle cores 214 may have a unimodal distribution and an average particle diameter of about 5 pm to about 300 pm, more particularly, about 80 pm to about 120 pm and even more particularly about 100 pm.
    [00017] Particle cores 214 can have any suitable particle shape, including any regular or irregular geometric shape, or a combination thereof. In an exemplary embodiment, the particle cores 214 are substantially spheroidal, electrochemically active metal particles. In another exemplary modality
    Petition 870190079612, of 16/08/2019, p. 13/45
    10/34, particle cores 214 are irregularly shaped ceramic particles. In yet another exemplary embodiment, the particle cores 214 are carbon or other hollow glass nanotube or microsphere structures.
    [00018] Each of the powder coated metal particles 212 of powder 210 also includes a metal coating layer 216 which is arranged on the particle core 214. The metal coating layer 216 includes a metal coating material 220. The material metal coating 220 gives the powder particles 212 and the powder 210 its metallic nature. The metallic coating layer 216 is a nanoscale coating layer. In an exemplary embodiment, the metallic coating layer 216 can have a thickness of about 25 nm to about 2500 nm. The thickness of the metallic coating layer 216 may vary across the surface of the particle core 214, but preferably it will have a substantially uniform thickness across the surface of the particle core 214. The metallic coating layer 216 may include a single layer , as shown in figure 3, or a plurality of layers as a multilayer coating structure. In a single layer coating, or in each of the layers of a multilayer coating, the metal coating layer 216 can include a single or compound constituent chemical element or can include a plurality of chemical elements or compounds. Where a layer includes a plurality of constituents or chemical compounds, they can have all forms of homogeneous or heterogeneous distributions of metallurgical phases. This may include a graduated distribution where the relative amounts of constituents or chemical compounds vary according to the respective constituent profiles through the thickness of the layer. In single layer and multilayer coatings 216, each
    Petition 870190079612, of 16/08/2019, p. 14/45
    11/34 one of the respective layers or combinations thereof, can be used to provide a predetermined property to the powder particle 212 or to a sintered compact powder formed therefrom. For example, the predetermined property may include the bond strength of the metallurgical bond between the particle core 214 and the coating material 220, the interdiffusion characteristics between the particle core 214 and the metal coating layer 216, including any interdiffusion between the layers of a multilayer coating layer 216, including any interdiffusion between the layers of a multilayer coating layer 216, the interdiffusion characteristics between the metallic coating layer 216 of a powder particle and that of a powder particle adjacent 212; the bond strength of the metallurgical bond between the sintered powder particles 212 metal coating layers, including the outer layers of multilayer coating layers; and the electrochemical activity of the coating layer 216. [00019] The metal coating layer 216 and the reaction mixture 220 have a melting temperature (Tc). As used herein, Tc includes the lowest temperature at which incipient melting or liquefaction or other forms of partial melting occur within coating material 220, regardless of whether coating material 220 comprises a pure metal, an alloy with multiple phases, each one having different melting temperatures or a compound, including a compound comprising a plurality of layers of coating material having different melting temperatures.
    [00020] The metallic coating material 220 may include any suitable metallic coating material 220, which provides a sinterable outer surface 221, which is configured to be sintered to an adjacent powder particle 212, which also has a metallic coating layer 216 and external surface sinte
    Petition 870190079612, of 16/08/2019, p. 15/45
    12/34 riable 221. In powders 210 which also include second or additional particles (coated or uncoated) 232, as described herein, the sinterizable outer surface 221 of metallic coating layer 216 is also configured to be sintered on a sinterable outer surface 221 of second particles 232. In an exemplary embodiment, powder particles 212 are sinterizable at a predetermined sintering temperature (Ts), which is a function of core material 218 and coating material 220, so that sintering of compact powder 400 is carried out entirely in the solid state and where Ts is less than Tp and Tc. Sintering in the solid state limits interactions of the particle core 214 / metallic coating layer 216 to solid state diffusion processes and metallurgical transport phenomena and limits growth and provides control over the resulting interface between them. In contrast, for example, the introduction of liquid-phase sintering will provide rapid interdiffusion of particle core materials 214 / metal cladding layer 216 and make it difficult to limit growth and provide control over the resulting interface between them and thus interfere with the formation of the desirable microstructure of compact particle 400, as described herein.
    [00021] In an exemplary embodiment, core material 218 will be selected to provide a chemical core composition and coating material 220 will be selected to provide a chemical coating composition and these chemical compositions will also be selected to differ from one another. In another exemplary embodiment, core material 218 will be selected to provide a chemical coating composition and these chemical compositions will also be selected to differ from one another in their interface; Differences in the chemical compositions of coating material 220 and core material 218
    Petition 870190079612, of 16/08/2019, p. 16/45
    13/34 can be selected to provide different dissolution rates and selectable and controllable dissolution of 400 compact powders that incorporate them, making them selectable and controllably dissolvable. This includes dissolution rates that differ in response to an altered downhole condition, including an indirect or direct change in a wellbore fluid. In an exemplary embodiment, a compact powder 400, formed of powder 210 having chemical compositions of core material 218 and coating material 220 that make compact 400 selectively dissolvable in a well bore fluid, in response to an altered condition of well bore, which includes a change in temperature, change in pressure, change in flow rate, change in pH or change in the chemical composition of the well bore fluid or one of its combinations. The selectable dissolution response to the altered condition can result from actual chemical reactions or processes, which promote different dissolution rates, but also involve changes in well bore fluid pressure or flow rate.
    [00022] As shown in figures 2 and 4, the particle core 214 and the core material 218 and the metallic coating layer 216 and the coating material 220 can be selected to provide powder particles 212 and a powder 210, which it is configured for compaction and sintering to provide a 400 compact powder that is light (ie having a relatively low density), high strength and is selectable and controllably removable from a well bore in response to a change in a property of well bore, including being selectable and controllably dissolvable in an appropriate well bore fluid, including various well bore fluids, as disclosed herein. Compact powder 400 includes a cellular, substantially continuous nanomatrix 416 of a nanomatrix material 420 having a plurality of dispersed particles 414,
    Petition 870190079612, of 16/08/2019, p. 17/45
    14/34 dispersed throughout the cell nanomatrix 416 and the nanomatrix material 420, formed of sintered metallic coating layers 216, are formed by compacting and sintering the plurality of metallic coating layers 216 of the plurality of powder particles 212. The composition chemistry of nanomatrix material 420 may be different from that of coating material 220 due to the diffusion effects associated with sintering, as described here. Metal compact powder 400 also includes a plurality of dispersed particles 414 comprising particle core material 418. Dispersed particle cores 414 and core material 418 correspond to and are formed of the plurality of particle cores 214 and core material 218 the plurality of powder particles 212 since the metallic coating layers 216 are sintered together to form nanomatrix 416. The chemical composition of core material 418 may be different from that of core material 218 due to the diffusion effects associated with sintering, as described here.
    [00023] As used herein, the use of the term substantially continuous cellular nanomatrix 416 does not have as connotation the main constituent of the compact, but rather refers to the constituent or minor constituents, either in weight or in volume. This is distinguished from most matrix composite materials where the matrix comprises the major constituent by weight or by volume. The use of the term substantially continuous cellular nanomatrix is intended to describe the extensive, regular, continuous and interconnected nature of the distribution of nanomatrix material 420 within compact powder 400. As used herein, substantially continuous describes the extent of the nanomatrix material by all of the compact powder 400, so that it extends between and substantially envelops all dispersed particles 414. Substantially continuous is used to indicate that continuity
    Petition 870190079612, of 16/08/2019, p. 18/45
    15/34 complete and regular nanomatrix order around each 414 dispersion particle is not required. For example, defects in the coating layer 216 through the particle core 214 in some powder particles 212 may bridge the particle cores 214 during sintering of the compact powder 400, thus causing localized discontinuities resulting within the cell nanomatrix 416, even though in the other portions of the compact powder the nanomatrix is substantially continuous and shows the structure described here. As used herein, cell is used to indicate that the nanomatrix defines a network of compartments or interconnected cells, usually repeating itself, of nanomatrix material 420 that surround and also interconnect dispersed particles 414. Interconnect dispersed particles 414. As used here , nanomatrix is used to describe the size or scale of the matrix, particularly the thickness of the matrix between adjacent dispersed particles 414. The metal coating layers that are sintered together to form the nanomatrix are itself nanoscale thickness coating layers. Since the nanomatrix in most locations, other than the intersection of more than two dispersed particles 414, generally comprises the interdiffusion and bonding of two layers of coating 216 of adjacent dust particles 212 having thicknesses of the nanoscale , the matrix formed also has a nanoscale thickness (for example, approximately twice the thickness of the coating chamber as written herein) and is thus described as a nanomatrix. In addition, the use of the term dispersed particles 414 does not have the connotation of the smaller constituent of compact powder 400, but rather refers to the constituent or major constituents, either in weight or in volume. The use of the term dispersed particle is intended to convey the discrete and discrete distribution of particle core material 418 within compact powder 400.
    Petition 870190079612, of 16/08/2019, p. 19/45
    16/34 [00024] Compact powder 400 can have any desired shape or size, including that of a cylindrical bar or billet that can be used or otherwise used to form useful articles of manufacture, including various tools and bore components. well. The sintering and pressing processes used to form compact powder 400 and deform powder particles 212, including particle cores 214 and coating layers 216, to provide the desired macroscopic shape and size and total density of compact powder 400, as well as as its microstructure. The compact powder microstructure 400 includes an equiaxial configuration of dispersed particles 414 which are dispersed completely and incorporated within the substantially continuous cellular nanomatrix 416 of sintered coating layers. This microstructure is somewhat analogous to an equiaxial grain microstructure with a continuous grain boundary phase, except that it does not require the use of alloy constituents having phase equilibrium thermodynamic properties that are capable of producing this structure. Rather, this structure of dispersed equiaxial particles and cell nanomatrix 416 of sintered metallic coating layers 216 can be produced using constituents where thermodynamic phase equilibrium conditions will not produce an equiaxial structure. The equiaxial morphology of the scattered particles 414 and the cellular network 416 of particle layers results from the sintering and deformation of the dust particles 212 as they are compacted and undergo interdiffusion and deformation to fill the interparticle spaces 215 (figure 2). Sintering temperatures and pressures can be selected to ensure that the density of compact 400 reaches substantially total theoretical density. In an exemplary embodiment, as shown in figures 2 and 4, the scattered particles 414 are formed from nuclei of particles 214 dispersed in the cell nanomatrix 416 of ca
    Petition 870190079612, of 16/08/2019, p. 20/45
    17/34 sintered metallic coating layers 216 and nanomatrix 416 includes a solid state metallurgical bond 417 or bonding layer 419, as shown schematically in figure 5, extending between the scattered particles 414 throughout the cell nanomatrix 416 which is formed at a sintering temperature (Ts), where Ts is less than Tc and TP As indicated, the solid state metallurgical bond 417 is formed in the solid state by solid state interdiffusion between the coating layers 216 of adjacent powder particles 212 which are compressed in touch contact during the compacting and sintering processes used to form compact powder 400, as described herein. As such, the sintered coating layers 216 of cellular nanomatrix 416 include a solid state bonding layer 419 that has a thickness (t) defined by the extent of the interdiffusion of the coating materials 220 of the coating layers 216, which in turn , will be defined by the nature of the coating layers 216, including whether they are single or multilayer coating layers, whether selected to promote or limit such interdiffusion and other factors, as described herein, as well as the sintering and compacting conditions , including the sintering time, temperature and pressure used to form compact powder 400.
    [00025] As nanomatrix 416 is formed, including bond 417 and bond layer 419, the chemical composition or phase distribution, or both, of metal plating layers 216 may change. Nanomatrix 416 also has a melting temperature (TM). As used herein, TM includes the lowest temperature at which incipient melting or liquefaction or other forms of partial melting will occur within nanomatrix 416, regardless of whether the nanomatrix material 420 comprises a pure metal, an alloy with multiple phases, each one having different melting temperatures or one with
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    18/34 put, including a compound comprising a plurality of layers of various coating materials, having different melting temperatures or a combination thereof or otherwise. As dispersed particles 414 and particle core materials 418 are formed in conjunction with nanomatrix 416, diffusion of constituents of metallic coating layers 216 into particle cores 214 is also possible, which can result in changes in composition chemical or phase distribution, or both, of particle cores 214. As a result, dispersed particles 414 and particle core materials 418 may have a melting temperature (TDP) that is different from Tp. As used herein, TDP includes the lowest temperature at which incipient melting or liquefaction or other forms of partial melting will occur within dispersed particles 214, regardless of whether the particle core material 218 comprises a pure metal, a multiphase alloy, each having different melting temperatures or a compound or otherwise. Compact powder 400 is formed at a sintering temperature (Ts), where Ts is less than Tc, TP, TM and TDP.
    [00026] The dispersed particles 414 can comprise any of the materials described herein for particle cores 214, although the chemical composition of dispersed particles 414 may be different, due to the effects of diffusion, as described herein. In an exemplary embodiment, dispersed particles 414 are formed from particle cores 214 comprising materials having a standard oxidation potential greater than or equal to that of Zn, including, Mg, Al, Zn or Mn, or a combination thereof various binary, tertiary and quaternary alloys or other combinations of these constituents, as disclosed herein in conjunction with particle cores 214. Of these materials, those having dispersed particles 414 comprising Mg and the nanomatrix 416 formed from
    Petition 870190079612, of 16/08/2019, p. 22/45
    19/34 metallic coating materials described herein are particularly useful. The scattered particles 414 and the particle core material 418 of Mg, Al, Zn or Mn, or a combination thereof, may also include a rare earth element or a combination of rare earth elements, as disclosed herein, together with 214 particle cores.
    [00027] In another exemplary embodiment, dispersed particles 414 are formed from particle cores 214 comprising metals that are less electrochemically active than Zn or non-metallic materials. Suitable non-metallic materials include ceramics, glass (e.g., hollow glass microspheres) or carbon, or a combination thereof, as described herein.
    [00028] The dispersed particles 414 of compact powder 400 can have any suitable particle size, including average particle sizes described herein for particle cores 214.
    [00029] The dispersed particles 414 can have any suitable shape, depending on the shape selected for the particle cores 214 and the dust particles 212, as well as the method used to sinter and compact powder 210. In an exemplary embodiment, the particles of powder can be spheroidal or substantially spheroidal and the dispersed particles 414 can include an equiaxial particle configuration, as described herein.
    [00030] The nature of the dispersion of dispersed particles 414 can be affected by the selection of powder 210 or powders 210 used to make compact particles 400. In an exemplary embodiment, a powder 210 having a unimodal distribution of powder particle sizes 212 can be selected to form compact powder 220 and will produce a substantially homogeneous unimodal dispersion of dispersed particle sizes 414 within cell nanomatrix 416, as generally illustrated in Figure 4. In another embodiment
    Petition 870190079612, of 16/08/2019, p. 23/45
    For example, a plurality of powders 210 having a plurality of powder particles with particle cores 214 having the same core materials 218 and different core sizes and the same coating material 220 can be selected and mixed uniformly, as described herein, in order to provide a powder 210, having a homogeneous modal particle size distribution of dispersed particles 414 within cell nanomatrix 416. Similarly, in another exemplary embodiment, a plurality of powders 210 having a plurality of particle cores 214 that can have the same core materials 218 and different core sizes and the same coating material 220 can be selected and distributed non-uniformly to provide a multimodal, inhomogeneous, particle size distribution and can be used to form compact powder 400 having a non-homogeneous multimodal dispersion d and particle sizes of scattered particles 414 within cell nanomatrix 416. Selection of the particle core size distribution can be used to determine, for example, the particle size and interparticle spacing of scattered particles 414 within cell nanomatrix 416 of 400 compact powders made of 210 powder.
    [00031] Nanomatrix 416 is a cellular network, substantially continuous, of layers of metallic coating 216 that are sintered with each other. The thickness of nanomatrix 416 will depend on the nature of powder 210 or powders 210 used to form compact powder 400, as well as the incorporation of any second powder 230, particularly the thicknesses of the coating layers associated with these particles. In an exemplary embodiment, the thickness of nanomatrix 416 is substantially uniform throughout the compact powder microstructure 400 and comprises about twice the thickness of the coating layers 216 of powder particles 212.
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    21/34
    In another exemplary embodiment, the cellular network 416 has a substantially uniform average thickness between dispersed particles 414 of about 50 nm to about 5000 nm.
    [00032] Nanomatrix 416 is formed by sintering layers of metallic coating 216 of particles adjacent to each other by means of interdiffusion and creation of bonding layer 419 as described herein. The metallic coating layers 216 can be single layer or multilayer structures and can be selected to promote or inhibit diffusion, or both, within the layer or between the layers of metallic coating layer 216 or between the metallic coating layer 216 and particle core 214 or between the metal plating layer 216 and the metal plating layer 216 of an adjacent powder particle, the extent of interdiffusion of metal plating materials 216 during sintering can be limited or extensive, depending on the coating thickness, selected coating material or materials, sintering conditions and other factors. Given the potential complexity of interdiffusion and interaction of constituents, the description of the resulting chemical composition p of nanomatrix 416 and nanomatrix material 420 can be understood simply as a combination of the constituents of coating layers 216 which may also include one or more constituents of dispersed particles 414, depending on the extent of interdiffusion, if any, that occurs between dispersed particles 414 and the nanomatrix 416. Similarly, the chemical composition of dispersed particles 414 and the material of particle cores 418 can simply be understood to be a combination of particle core constituents 214 which may also include one or more constituents of nanomatrix 416 and nanomatrix material 420, depending on the extent of interdiffusion, if any, that occurs between the particles
    Petition 870190079612, of 16/08/2019, p. 25/45
    22/34 dispersed 414 and the nanomatrix 416.
    [00033] In an exemplary embodiment, nanomatrix material 420 has a chemical composition and particle core material 418 has a chemical composition that is different from that of nanomatrix material 420 and differences in chemical compositions can be configured to provide a dissolution rate 216 of a selectable and controllable pdp, including a selectable transition from a very low dissolution rate to a very rapid dissolution rate, in response to a controlled change in a well hole property or condition close to the 400 compact, including a change of ownership in well bore fluid that is in contact with compact 400, as described herein. Nanomatrix 416 can be formed of powder particles 212 having single layer or multilayer coating layers 216. This design flexibility provides a large number of material combinations, particularly in the case of multilayer coating layers 216, which can be used to mold cell nanomatrix 416 and the composition of nanomatrix material 420 by controlling the interaction of the coating layer constituents within a given layer, as well as between a coating layer 216 and the particle core 214 with the which is associated or a coating layer 216 of an adjacent powder particle 212. Several exemplary embodiments that demonstrate this flexibility are provided below.
    [00034] As illustrated in figure 5, in an exemplary embodiment, compact powder 400 is formed of powder particles 213 where the coating layer 216 comprises a single layer and the resulting nanomatrix 416 between the adjacent of the plurality of dispersed particles 414 comprises the single metallic coating layer 216 from another of the adjacent dust particles 212. The thickness
    Petition 870190079612, of 16/08/2019, p. 26/45
    23/34 (t) of the bonding layer 419 is determined by the extent of interdiffusion between the unique metallic coating layers 216 and may involve the entire thickness of nanomatrix 416 or only a portion thereof.
    [00035] In an exemplary form of compact powder 400, formed using a single layer powder 210, compact powder 400 may include dispersed particles 414 comprising Mg, Al, Zn or Mn or one of its combinations, as described herein and the nanomatrix 416 may include Al, Zn, Mn, Mg, Mo, W, Cu, Fe, Si, Ca, Co, Ta, Re or Ni, or an oxide, carbide or nitride or a combination of any of the materials mentioned above, including combinations where nanomatrix material 420 of cell nanomatrix 416, including cleaning component 419, has a chemical composition and core material 418 of dispersed particles 414 has a chemical composition that is different from the chemical composition of nanomatrix material 416. A difference in the chemical composition of nanomatrix material 420 and core material 418 can be used to provide selectable and controllable dissolution in response to a change in a well bore property, including a well bore fluid, as described herein. In another exemplary embodiment of a compact powder 400 formed of a powder 210, having a single layer configuration, dispersed particles 414 include Mg, Al, Zn or Mn, or a combination thereof and the cellular nanomatrix 416 includes Al or Ni or a combination of them.
    [00036] As illustrated in figure 6, in another exemplary embodiment, compact powder 400 is formed of powder particles 212 where the coating layer 216 comprises a multilayer coating layer 216 having a plurality of coating layers and the nanomatrix 416 resulting between the adjacent of the plurality of dispersed particles 414 comprises the plurality of
    Petition 870190079612, of 16/08/2019, p. 27/45
    24/34 layers (t), comprising the coating layer 216 of a particle 212, a bonding layer 419 and the plurality of layers comprising the coating layer 216 of another of the powder particles 212. In Figure 6, this is illustrated with a two-layer metallic coating layer 216, but it will be understood that the plurality of multilayer metallic coating layer layers 216 can include any desired number of layers. The thickness (t) of the connecting layer 419 is, again, determined by the extent of the interdiffusion between the plurality of layers of the respective coating layers 216 and can involve the entire thickness of the nanomatrix 416 or only a portion thereof. In this embodiment, the plurality of layers comprising each coating layer 216 can be used to control the interdiffusion and the formation of the connecting layer 419 and thickness (t).
    [00037] 400 sintered and forged compact powders, which include 4124 dispersed particles, comprising Mg and nanomatrix 416, comprising various nanomatrix materials, as described herein, have demonstrated an excellent combination of mechanical strength and low density that exemplify light materials, of high resistance disclosed here. Examples of compact powders 400 that have dispersed particles of pure Mg 414 and multiple nanomatrices 416 formed of powders 210, having nuclei of pure Mg particles 214 and several layers of single-layer and multilayer metallic coating 216, which include Al. Ni, W or AbO3 or a combination thereof. These 400 compact powders have been subjected to various mechanical and other tests, including density tests, and their degradation behavior of the dissolution and mechanical properties has also been characterized, as disclosed here. The results indicate that these materials can be configured to provide a wide range of corrosion behavior or
    Petition 870190079612, of 16/08/2019, p. 28/45
    25/34 selectable and controllable solutions from very low corrosion rates to extremely high corrosion rates, particularly corrosion rates that are lower and higher than those of compact powders that do not incorporate the cellular nanomatrix, such as a compact formed of Pure Mg, through the same compacting and sintering processes described here. These compact powders 200 can also be configured to provide substantially enhanced properties when compared to compact powders formed from pure Mg particles that do not include the nanoscale coatings described herein. Compact powders 400 including dispersed particles 414 comprising Mg and nanomatrix 416, comprising various materials of nanomatrix 420 described herein have demonstrated compressive strengths at room temperature of at least about 37 ksi and have also demonstrated compressive strengths at room temperature above about 50 ksi, dried and immersed in a 3% KCl solution at 94 ° C (200 ° F). In contrast, compact powders formed from pure Mg powders have a compressive strength of about 20 ksi or less. The strength of the nanomatrix metal compact powder 400 can still be improved by optimizing the powder 210, particularly the weight percentage of the nano scale 16 metal coating layers that are used to form the cellular nanomatrix 416. The strength of the compact nanomatrix 400 nanomatrix metal 400 can still be improved by powder optimization 210, particularly the weight percentage of the nanoscale metallic coating materials 216 that are used to form the cellular nanomatrix 416. For example, the variation of the weight percentage (weight%) ), that is, the thickness, of an alumina coating within a cell nanomatrix 416 formed of coated powder particles 212 that include a multilayer metallic coating layer (Al / Al2O3 / Al) 216 in Mg particle cores
    Petition 870190079612, of 16/08/2019, p. 29/45
    26/34 pure 214 provides an increase of 21% when compared to that of percentage alumina by weight.
    [00038] Compact powders 400, comprising dispersed particles 414 which include Mg and nanomatrix 416 which includes various nanomatrix materials, as described herein, have also demonstrated a shear resistance at room temperature of at least about 50.8 cm (20 ksi). This is in contrast to compact powders formed from pure Mg powders, which have shear strengths at an ambient temperature of about 20.32 cm (8 ksi).
    [00039] Compact powders 400 of the types disclosed herein are capable of achieving an actual density that is substantially equal to the predetermined theoretical density of a compact material based on the composition of powder 210, including relative amounts of particle constituents of particles 214 and layer of metallic coating 216 and are also described here as completely dense compact powders. Compact powders 400 comprising dispersed particles that include Mg and nanomatrix 416, which includes various nanomatrix materials, as described herein, have demonstrated actual densities of about 1.738 g / cm 3 to about 2.50 g / cm 3 , which are substantially equal to the predetermined theoretical densities, differing by a maximum of 4% from the predetermined theoretical densities.
    [00040] Compact powders 400, as disclosed herein, can be configured to be selectively and controllably dissolvable in a well bore fluid in response to an altered condition in a well bore. Examples of the altered condition that can be exploited to provide selective and controllable dissolution capacity include a change in temperature, change in pressure, change in the flow rate, change in pH or change in the chemical composition of well bore fluid or a combination of same. An example of an altered condition comprising a
    Petition 870190079612, of 16/08/2019, p. 30/45
    27/34 change in temperature includes a change in the temperature of the well bore fluid. For example, compact powders 400, comprising dispersed particles 414 that include Mg and cellular nanomatrix 416 that includes various nanomatrix materials, as described herein, have relatively low corrosion rates in a 3% KCl solution at room temperature, which range from 0 to about 11 mg / cm 2 / h, when compared to relatively high corrosion rates at 94 ° C (200 ° F), which range from about 1 to about 246 mg / cm 2 / h , depending on different layers of nanoscale coating 216. An example of an altered condition comprising a change in chemical composition includes a change in a Clecto ion concentration or pH value, or both, of the well bore fluid. For example, compact powders 400, comprising dispersed particles 414 which include Mg and nanomatrix 416, which includes various nanoscale coatings described herein demonstrate corrosion rates in 15% HCl, which range from about 4750 mg / cm 2 / ha around 7432 mg / cm 2 / h. In this way, the selective and controllable dissolution capacity, in response to an altered well hole condition, namely the change in the chemical composition of the well hole fluid from KCl to HCl, can be used to obtain a characteristic response , as illustrated graphically in Figure 7, which illustrates that, at a selected predetermined critical service time (CST), an altered condition can be imposed on compact powder 400 as it is applied in a given application, such as an environment well bore, which causes a controllable change in a compact powder property, in response to an altered condition in the environment in which it is applied. For example, in a change in predetermined CST of a well bore fluid that is in contact with the compact powder 400 of a first fluid (eg KCl) that provides a first rate of corrosion and
    Petition 870190079612, of 16/08/2019, p. 31/45
    28/34 a weight loss or associated strength as a function of time for a second well bore fluid (eg HCl) that provides a second rate of corrosion and weight loss and associated strength as a function of time, in that the corrosion rate associated with the first fluid is much less than the corrosion rate associated with the second fluid. This characteristic response to a change in well-hole fluid conditions can be used, for example, to associate critical service time with a size loss limit or minimum resistance required for a particular application, so that when a well-formed tool or component of compact powder 400, as disclosed herein, is no longer necessary for a particular application, so that when a well-formed tool or component formed of compact 400, as disclosed herein, is no longer needed in service at the well bore (for example, CST), the condition in the well bore (for example, the ion concentration of well bore chloride) can be changed to cause rapid dissolution of compact powder 400 and its removal from the borehole. In the example described above, compact powder 400 is selectively dissolvable at a rate ranging from about 0 to about 7000 mg / cm 2 / h. This response range provides, for example, the ability to remove a 3-inch diameter sphere formed from this material from a well bore by changing the well bore fluid in less than an hour. The selectable and controllable dissolution capacity described above, coupled with the excellent low density and strength properties described here, define a new machined dispersed particle nanomatrix material, which is configured to contact a fluid and configured to provide a transition selectable and controllable from a first resistance condition to a second resistance condition that is
    Petition 870190079612, of 16/08/2019, p. 32/45
    29/34 less than a functional endurance limit or a first amount of weight loss for a second amount of weight loss that is greater than a weight loss limit, as a function of time in contact with the fluid. The dispersed particle nanomatrix compound is characteristic of the compact powders 400 described herein, and includes a cellular nanomatrix 416 of nanomatrix material 420, a plurality of dispersed particles 414 including particle core material 418 that is dispersed within the matrix, The nanomatrix 416 it is characterized by a solid state connection layer 419, which extends throughout the nanomatrix. The time in contact with the fluid described above may include the CST, as described above. The CST may include a predetermined time that is desired or required to dissolve a predetermined portion of compact powder 400, which is in contact with the fluid. The CST may also include a time corresponding to a change in the property of the machined material or the fluid, a combination of both. In the case of a change in ownership of the machined material, the change may include a change in a temperature of the machined material. In the case where there is a change in the property of the fluid, the change may include a change in a fluid temperature, pressure, flow rate, chemical composition or pH or a combination thereof. Both the machined material and the change in property of the machined material or the fluid can be shaped to provide the desired CST response characteristics, including the rate of change of the particular property (for example, weight loss, loss of strength) before CST (for example, Stage 1) and after CST (for example, Stage 2), as shown in figure 7.
    [00041] Without being limited by theory, compact powders 400 are formed of coated powder particles 212 that include a particle core 214 w associated core material 218, as well as a ca
    Petition 870190079612, of 16/08/2019, p. 33/45
    30/34 metallic coating layer 216 and an associated metallic coating material 220 to form a substantially continuous three-dimensional cellular nanomatrix 216, which includes a nanomatrix material 420 formed through sintering and the associated diffusion bond of the respective coating layers 216 which includes a plurality of dispersed particles 414 of the particle core materials 418. This unique structure may include metastable combinations of materials that would be very difficult or impossible to form through solidifying a melt having the same relative amounts as the constituent materials. Coating layers and associated coating materials can be selected to provide selectable and controllable dissolution in a predetermined fluid environment, such as a well bore environment, where the predetermined fluid may be a commonly used well bore fluid, which it is injected into the well hole or extracted from the well hole. As will be well understood from the present description, the controlled dissolution of the nanomatrix exposes the dispersed particles of the core materials. The particle core materials can also be selected to provide selectable and controllable dissolution in the well bore fluid. Alternatively, they can also be selected to provide a particular mechanical property, such as compressive strength or shear strength, to compact 400, without necessarily providing selectable and controllable dissolution of the core materials, since the selectable and controllable dissolution of the nanomatrix material that surrounds these particles will necessarily release them, so that they can be carried away by the well bore fluid. The microstructural morphology of the substantially continuous cellular nanomatrix 416, which can be selected to provide a material of the stiffening phase, with dispersed particles 414, which
    Petition 870190079612, of 16/08/2019, p. 34/45
    31/34 can be selected to provide equiaxial dispersed particles 414, endows these compact powders with enhanced mechanical properties, including compressive strength and shear strength, since the resulting particle / nanomatrix morphology can be manipulated to provide reinforcement through of processes that are similar to traditional reinforcement mechanisms, such as the reduction of grain size, the hardening of the solution through the use of atoms of impurities, hardening by precipitation or with age and hardening mechanisms by work / resistance. The structure of the dispersed particles / nanomatrix tends to limit the displacement movement due to the numerous particle / nanomatrix interfaces, as well as interfaces between different layers within the nanomatrix material, as described herein. This is exemplified in the fracture behavior of these materials. A 400 compact powder made using pure uncoated Mg powder and subjected to sufficient shear stress to induce failure demonstrated intergranular fracture. In contrast, a compact powder 400 made using powder particles 212, having nuclei of pure Mg powder particles 214 to form dispersed particles 414 and layers of metallic coating 216 that includes Al to form nanomatrix 416 and subjected to a shear stress sufficient to induce failure demonstrated transgranular fracture and a substantially higher fracture stress, as described herein. Since these materials have high strength characteristics, the core material and the coating material can be selected to use low density materials or other low density materials, such as low density metals, ceramics, glass or carbons, which otherwise, they would not provide the strength characteristics required for use in the desired applications, including borehole tools and components.
    Petition 870190079612, of 16/08/2019, p. 35/45
    The plugs 16 allow the housing 12 of the arrangement 10 to sustain an amount of fluid pressure that is related to an operation for which the arrangement was manufactured. In one embodiment, the plug (s) 16 are configured to contain a high pressure associated with a seal adjustment operation (not shown).
    [00043] In use and for purposes of illustration, the use of an exemplary sequence of events, including a seal adjustment operation, a frac and production operation, the provision disclosed here works in the bore. Although the prior art provisions worked with valve 18 in a closed position, the present arrangement works with one or more valves 18 in an open position. As the plug (s) 16 prevent (m) the movement of fluid through one or more openings 14, the operations using pressure for adjustments, such as the adjustment of the seal observed, the operation can be carried out with the provision 10 already in an open position. This translates into the elimination of a step to move valve 18 to an open position after the seal adjustment operation is completed, which would otherwise have been necessary in the prior art. The second operation seen in the example is a frac operation. For this operation, one or more openings 14 must be patent and the valve 18 must be in a position that allows the fluid pressure to communicate between the pipe and the annular space, so that the pressure of the pipe is communicated to the formation for fracture of the same, Since in the exemplary scenario introduced the valve (s) 18 is already open, no mechanical intervention is necessary. Rather, all that is needed is a reduction of the plug (s) 16. In each case of the materials considered, either the time of exposure to the well bore fluids or the specific application of a reagent, such as an acid , is the parent of the reduction and / or dys
    Petition 870190079612, of 16/08/2019, p. 36/45
    33/34 solution of the plug (s) 16, the end result is that the plug (s) will cease to be an impediment for the pipe pressure to reach the formation. In this way, the frac operation is facilitated and does not require a separate mechanical intervention step. Subsequent to the frac operation in the exemplary mode, production through the pipeline is expected. Clearly, production through the pipe column is not supported, if an opening is left in housing 12. To remedy this, a mechanical intervention step will be undertaken and valve 18 closed. Although the described modality uses a separate step, it uses only a separate step, not the two separate steps of the prior art that were used to achieve the objectives of the example scenario.
    [00044] As someone with technical skill will realize, a single step can cost hundreds of thousands of dollars. The elimination of a step, therefore, is a substantial benefit to the technique.
    [00045] The arrangement is employed in a method for carrying out a series of downhole operations with a reduced number of mechanical intervention steps by moving the arrangement to the target depth and carrying out a downhole operation, such as upward pressurization in the pipe column to adjust a seal, one or more of the exposure of at least the plug (s) 16 to downhole fluids (natural or introduced) and migrating a disoolution fluid (such as as, but not limited to, an acid) at least for the plug (s) 16 in order to reduce or eliminate the plug (s) 16; pressurization in the pipeline column to perform another downhole operation that involves the annular space of the pipeline column, moving a mechanical intervention tool to the target depth and closing one or more valves 18, thus preparing the pipeline column for another operation not involving the communication of the
    Petition 870190079612, of 16/08/2019, p. 37/45
    34/34 piping pressure into the annular space.
    [00046] Although one or more modalities have been shown and described, modifications and substitutions can be made without departing from the spirit and scope of the invention. Accordingly, it should be understood that the present invention has been described by way of illustration and not by way of limitation.
    权利要求:
    Claims (11)
    [1]
    1. Flow control arrangement (10) comprising:
    a housing (12) defining one or more openings (14) therein;
    a valve structure (18) alignable and unalignable with one or more openings (14) in the housing (12); and one or more plugs (16), each in one or more of one or more openings (14), each plug (16) being reducible by one or more of the exposures to downhole fluids and applied dissolution fluids, characterized by the fact that the one or more plugs are formed of a dissolvable material, including:
    a substantially continuous cellular nanomatrix (416);
    a plurality of dispersed particles (414), including a particle core material (418) comprising Mg, Al, Zn or Mn, or a combination thereof, and a metallic coating layer (216) arranged in each of the plurality dispersed particles (414); and a solid state bonding layer (419) that extends throughout the cellular nanomatrix (416) between the dispersed particles (414), the solid state bonding layer (419) formed by a solid state interdiffusion between layer coating (216) of adjacent particles (414).
    [2]
    2. Flow control arrangement (10) according to claim 1, characterized by the fact that the valve structure (18) is a sliding sleeve.
    [3]
    3. Flow control arrangement (10) according to claim 1, characterized by the fact that the valve structure includes one or more orifices (20).
    [4]
    4. Flow control arrangement (10), according to
    Petition 870190079612, of 16/08/2019, p. 39/45
    2/3 claim 1, characterized by the fact that the one or more plugs (16) comprise a material that can be reduced by exposure to natural downhole fluids.
    [5]
    5. Flow control arrangement (10) according to claim 1, characterized by the fact that the one or more plugs (16) comprise a material that can be reduced by exposure to the introduced downhole fluids.
    [6]
    6. Flow control arrangement according to claim 5, characterized by the fact that the wellhead fluids introduced include acid.
    [7]
    7. Method for carrying out a series of downhole operations with a reduced number of mechanical intervention stages characterized by the fact that it comprises:
    disposition movement (10) as defined in claim 1 to a target depth;
    performing a downhole operation, requiring that the housing (12) have limited radial fluid permeability;
    plug reduction (16);
    conducting a downhole operation requiring fluid pressure communication through one or more openings; and mechanical intervention to close the valve structure (18), thereby making one or more openings (14) of the arrangement radially impermeable.
    [8]
    8. Method according to claim 7, characterized by the fact that performing a downhole operation with the radially restricted fluid housing (12) is fitting a seal (22).
    [9]
    9. Method according to claim 7, characterized by the fact that the reduction is complete dissolution.
    Petition 870190079612, of 16/08/2019, p. 40/45
    3/3
    [10]
    10. Method, according to claim 7, characterized by the fact that the performance of a downhole operation, requiring communication of fluid pressure through one or more openings (14), is the fractionation.
    [11]
    11. Method, according to claim 7, characterized by the fact that the mechanical intervention is the displacement of a glove.
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    同族专利:
    公开号 | 公开日
    EP2542754A2|2013-01-09|
    RU2012142229A|2014-04-10|
    CA2791719C|2015-02-03|
    AU2011223595A1|2012-09-13|
    EP2542754A4|2015-03-04|
    CN102782246A|2012-11-14|
    SG183912A1|2012-10-30|
    WO2011109616A2|2011-09-09|
    RU2585773C2|2016-06-10|
    CA2791719A1|2011-09-09|
    EP2542754B1|2018-05-02|
    WO2011109616A3|2011-10-27|
    CN102782246B|2015-06-17|
    NO2542754T3|2018-09-29|
    US8424610B2|2013-04-23|
    US20110214881A1|2011-09-08|
    BR112012022367A2|2016-07-05|
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    法律状态:
    2019-01-08| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-06-18| B06T| Formal requirements before examination [chapter 6.20 patent gazette]|
    2019-12-03| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-01-14| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 03/03/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US12/718,510|US8424610B2|2010-03-05|2010-03-05|Flow control arrangement and method|
    PCT/US2011/027024|WO2011109616A2|2010-03-05|2011-03-03|Flow control arrangement and method|
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