• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    system and method of joining metallic well elements. a system for joining metallic well elements includes a first metallic element, a second metallic element close to the first metallic element, and a pyrotechnic composition positioned close to the first metallic element and the second metallic element, configured to join the first metallic element to the second metallic element after being subjected to an exothermic reaction inside the well.
    公开号:BR112013025899B1
    申请号:R112013025899-3
    申请日:2012-03-30
    公开日:2020-12-15
    发明作者:Steve Michael Cortez
    申请人:Baker Hughes Incorporated；
    IPC主号:
    专利说明:

    [001] This patent application claims the benefits of U.S. Patent Application No. 13 / 082,033, filed on April 7, 2011, which is hereby incorporated by reference in its entirety. Foundations
    [002] Operators of tubular systems such as those used in onshore formation wells in industries such as hydrocarbon recovery and carbon dioxide sequestration often need to structurally clamp one tube to another while both tubes are inside a well. Sealing tubes together during such situations is also often desirable. Systems such as suspension accessories and shutters have been developed for such cases, which use sliding sleeves to anchor one tube in relation to the other and elastomeric seals to seal one tube to the other. Although these conventional shutters serve their purpose and work as intended, the industry is always receptive to new systems that can lower operating costs, production costs and improve the durability of the fastening and sealing they provide. Brief description
    [003] A system for joining metallic well elements is revealed here. The system includes a first metallic element, a second metallic element next to the first metallic element, and a pyrotechnic composition positioned close to the first metallic element and the second metallic element, configured to join the first metallic element to the second metallic element after being subjected to a exothermic reaction inside the well.
    [004] A method of joining metallic elements within a well is also described here. The method includes positioning at least two metallic elements close to each other within a well, positioning a pyrotechnic composition close to at least two metallic elements, exothermic reaction of the pyrotechnic composition, and joining at least two metallic elements together. Brief description of the drawings
    [005] The following descriptions should not be considered limiting in any way. With reference to the accompanying drawings, similar elements are numbered in a similar manner: FIG. 1 represents a cross-sectional view of a system for joining metallic well elements revealed here before undergoing an exothermic reaction; and FIG. 2 represents a cross-sectional view of the well metal element joining system of FIG. 1 after an exothermic reaction has occurred. Detailed Description
    [006] A detailed description of one or more modalities of the revealed equipment and method is presented here as an example and not a limitation with reference to the Figures.
    [007] With reference to Figures 1 and 2, one embodiment of a well metal element joining system disclosed here is illustrated at 10. The joining system 10 includes a first metallic element 14, illustrated here as a first tube, and a second metallic element 18, illustrated here as a second tube that is positioned radially to the first tube 14. A pyrotechnic composition 22 is positioned close to the first tube 14 and the second tube 18, which in this embodiment is in the annular space 26 defined between the first tube 14 and second tube 18. Pyrotechnic composition 22 is configured to react exotherm to thereby release sufficient heat to cause the first tube 14 to join the second tube 18. This connection can be by welding or solder with strong solder. If welded, the source materials of both tubes 14 and 18 are melted and melted by coalescence. If welded with a strong weld, a portion of the pyrotechnic composition 22 joins both tubes 14, 18 without causing the tubes 14, 18 to fuse. Joining the tubes 14, 18 results in one or both of the structural fixing and sealing coupling of the first tube 14 and second tube 18.
    [008] The joint system 10 is configured to function while in a well 30 in a land formation 34 as is generally used in the fields of hydrocarbon recovery and carbon dioxide sequestration, for example. Pyrotechnic composition 22 is selected for modalities disclosed here because it does not require oxygen from external sources and it is common for well applications to have limited oxygen, if any, available in well 30 due to the presence of well fluids 38. The substance or mixture of Substances that make up the pyrotechnic composition 22 are therefore designed to produce heat as a result of self-sustaining non-detonating exothermic chemical reactions that do not depend on oxygen from external sources to maintain the reaction. Termite and termite compositions are usable as the pyrotechnic composition 22. Such pyrotechnic compositions 22 include, for example, a metallic powder (a reducing agent) and a metallic oxide (an oxidizing agent) that produce an exothermic oxidation reaction - reduction known as termite reaction. Choices for a reducing agent include aluminum, magnesium, calcium, titanium, zinc, silicon, boron, and combinations that include at least one of the foregoing, for example, while choices for an oxidizing agent include boron oxide, silicon oxide , chromium oxide, manganese oxide, iron oxide, copper oxide, tin oxide and combinations that include at least one of the foregoing, for example. The initiation of an exothermic reaction of the pyrotechnic composition 22 can be by means of an initiation device (not shown) which can, for example, increase the temperatures of a portion of the pyrotechnic composition 22 by means of electrical, chemical or other means.
    [009] It may be desirable to isolate pyrotechnic composition 22 from well fluids 38 at least until the exothermic reaction has begun. The embodiment of Figures 1 and 2, therefore, houses the pyrotechnic composition 22 within a chamber 42 defined between the first tube 14 and a sleeve 46. The sleeve 46 is sealingly engaged with the first pipe 14 at a first end 50 and it is slidably engaged with the first tube 14 by a movable piston 54 by means of seals 58 shown as O-rings. The sliding seal engagement of piston 54 with the first tube 14 allows the pressure inside the chamber 42 to equalize with the pressure outside the chamber 42, thus allowing the creation of a pressure compensation device 62. In alternative embodiments, the chamber 42 can be sealed without the pressure compensation device 62 to maintain atmospheric pressure inside the chamber 42 regardless of the pressure outside of chamber 62. The joint system 10 disclosed here can be used instead of a conventional shutter and / or a conventional suspension accessory that uses sliding sleeves for fixing and eleme elastomeric seals for sealing a tube into another tube such as a wrapper to another wrapper, a plug to a wrapper, or a wrapper and liner, for example. The joint systems 10 can also be used to connect various tools such as a reinforcement to a bottom hole mechanism to eliminate the need for claws, clamps, vertical lifting mechanisms and dies, for example. Alternatively, the joint system 10 can be used as a probe guide anchor to deflect, or to repair damaged casings from leaking connections or other holes.
    [0010] One or more fusible plugs 66 may form a portion of chamber 42 to maintain the integrity of the seal of chamber 42 until a selected temperature is reached. Above the selected temperature the one or more meltable shutters 66 are broken and the pyrotechnic composition 22 is free to escape to the chamber 42 and to engage with the walls 70 of the tubes 14, 18. The expulsion of the pyrotechnic composition 22 from the chamber can be aided by gravitational forces and the pressure built into the chamber 42 in response to the exothermic reaction within it. An optional power failure element 74, shown in this embodiment as a rupture disk, can be used as a pressure relief device for chamber 42. A flow limiter 78 can also be used to keep pyrotechnic composition 22 in one desired location in relation to the walls 70 of the tubes 14, 18 when it is excited from the chamber 42. The flow limiter 78 can be ceramic, polymeric, glass or metal, for example, or combinations thereof.
    [0011] Additionally, a crucible 82 can be included to contain the exothermic reaction and its elevated temperatures to prevent overheating of the components of the system 10 close to the pyrotechnic composition 22, such as tubes 14, 18 and the sleeve 46, for example. Ceramic, due to its resistance to high temperatures, can be a desirable material for use in the crucible 82.
    [0012] Although the modalities disclosed here are aimed at joining concentrically oriented tubes, it should be understood that the invention is not limited to such construction, and alternative modalities are contemplated. For example, metallic elements positioned in a variety of configurations can be joined as long as the metallic elements are close enough to the pyrotechnic composition 22 for the union to take place after the exothermic reaction.
    [0013] Although the invention has been described with reference to an exemplary modality or modalities, it should be understood by those skilled in the art that various changes can be made and elements of that can be replaced by equivalents without departing from the scope of the invention. In addition, many modifications can be made to adapt a specific situation or material to the teachings of the invention without departing from its essential scope. Therefore, it is intended that the invention is not limited to the specific modality disclosed as the best method contemplated for carrying out this invention, but that the invention includes all modalities that fall within the scope of the claims. Also, in the drawings and in the description, exemplary modalities of the invention were revealed and, although specific terms may have been used, the same, unless otherwise mentioned, are used only in a generic and descriptive sense and not for the purpose of limitation, the scope of the invention is therefore not limited in this way. In addition, the use of the terms first, second, etc. they do not represent any order of importance, but instead the terms first, second, etc. are used to distinguish one element from another. Furthermore, the use of the terms one, one, etc. it does not represent a quantity limitation, but instead represents the presence of at least one of the referenced items.
    权利要求:
    Claims (22)
    [0001]
    1. System for joining metallic well elements, characterized by comprising: a first metallic element; a second metallic element close to the first metallic element; a pyrotechnic composition configured to join the first metallic element to the second metallic element after being subjected to an exothermic reaction inside the well; and a chamber next to the first metallic element and the second metallic element configured to isolate the pyrotechnic composition inside the well before reacting exothermically.
    [0002]
    2. System for joining metallic well elements, according to claim 1, characterized by the fact that the exothermic reaction creates a weld between the first metallic element and the second metallic element.
    [0003]
    3. System for joining metallic well elements, according to claim 1, characterized by the fact that the pyrotechnic composition welds the first metallic element to the second metallic element with strong solder.
    [0004]
    4. System for joining metallic well elements, according to claim 1, characterized by the fact that the exothermic reaction is an oxidation-reduction reaction.
    [0005]
    5. System for joining metallic well elements, according to claim 4, characterized by the fact that the pyrotechnic composition includes reducing agents selected from the group consisting of, aluminum, magnesium, calcium, titanium, zinc, silicon and boron and combinations that include at least one of the foregoing.
    [0006]
    6. System for joining metallic well elements, according to claim 4, characterized in that the pyrotechnic composition includes oxidizing agents selected from the group consisting of, boron oxide, silicon oxide, chromium oxide, oxide of manganese, iron oxide, copper oxide, tin oxide and combinations that include at least one of the foregoing.
    [0007]
    7. System for joining metallic well elements, according to claim 1, characterized by the fact that the pyrotechnic composition is termite.
    [0008]
    8. System for joining metallic well elements, according to claim 1, characterized by the fact that at least one of the first metallic element and the second metallic element is a tube.
    [0009]
    9. System for joining metallic well elements, according to claim 1, characterized in that both the first metallic element and the second metallic element are tubes and one is positioned radially inside the other.
    [0010]
    10. System for joining metallic well elements, according to claim 1, characterized by the fact that the pressure relief device is positioned on the opposite side of the chamber from which the pyrotechnic composition is configured to escape from the chamber.
    [0011]
    11. System for joining metallic well elements, according to claim 1, characterized in that it also comprises a shutter in working communication with the chamber configured to disengage from the chamber during the exothermic reaction to allow at least a portion of the pyrotechnic composition escape from the chamber.
    [0012]
    12. System for joining metallic well elements, according to claim 10, characterized by further comprising a piston and at least one seal configured to seal the chamber while allowing the pressure to equalize along the piston.
    [0013]
    13. System for joining metallic well elements, according to claim 12, characterized by the fact that at least one seal isolates the pyrotechnic composition of the drilling well fluid at least until the exothermic reaction begins.
    [0014]
    14. System for joining metallic well elements, according to claim 1, characterized in that it also comprises a pressure relief device arranged in the chamber.
    [0015]
    15. System for joining metallic well elements, according to claim 1, characterized in that the pyrotechnic composition is configured to seal the first metallic element to the second metallic element when joined together.
    [0016]
    16. Method of joining metallic elements inside a well, characterized by comprising: positioning at least two metallic elements close to each other inside a well; positioning of a pyrotechnic composition close to at least two metallic elements; exothermic reaction of the pyrotechnic composition inside a chamber inside the well; and joining at least two metallic elements together.
    [0017]
    17. Method of joining metallic elements within a well, according to claim 16, characterized in that it further comprises the positioning of one of the at least two metallic elements radially within the other.
    [0018]
    18. Method of joining metallic elements within a well, according to claim 16, characterized in that it also comprises the weld with strong solder of at least two metallic elements between them.
    [0019]
    19. Method of joining metallic elements within a well, according to claim 16, characterized in that it also comprises the welding of at least two metallic elements together.
    [0020]
    20. Method of joining metallic elements within a well, according to claim 16, characterized in that it further comprises the sealing of at least two metallic elements together.
    [0021]
    21. Method of joining metallic elements within a well, according to claim 16, characterized in that it also comprises the discharge of the pyrotechnic composition of the chamber.
    [0022]
    22. Method of joining metallic elements within a well, according to claim 16, characterized in that it further comprises limiting the pressure attainable within the chamber.
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    同族专利:
    公开号 | 公开日
    CN103459765A|2013-12-18|
    CA2827132A1|2012-10-11|
    BR112013025899A2|2016-12-20|
    GB2504854B|2019-01-09|
    NO20131130A1|2013-11-05|
    CA2827132C|2016-01-05|
    WO2012138556A2|2012-10-11|
    AU2012240467B2|2016-07-14|
    DK180046B1|2020-02-04|
    NO345411B1|2021-01-18|
    CN103459765B|2016-09-14|
    US20120255742A1|2012-10-11|
    WO2012138556A3|2012-11-29|
    GB2504854A|2014-02-12|
    US8662169B2|2014-03-04|
    GB201314557D0|2013-09-25|
    DK201300523A|2013-09-13|
    AU2012240467A1|2013-09-05|
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    法律状态:
    2018-12-18| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-10-15| B15K| Others concerning applications: alteration of classification|Free format text: AS CLASSIFICACOES ANTERIORES ERAM: B23K 1/00 , B23K 23/00 , E21B 17/02 , E21B 17/04 , E21B 33/12 , E21B 36/00 Ipc: E21B 17/02 (1968.09), B23K 23/00 (1968.09), B23K 1 |
    2019-10-22| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-11-24| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-12-15| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 30/03/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US13/082,033|US8662169B2|2011-04-07|2011-04-07|Borehole metal member bonding system and method|
    US13/082,033|2011-04-07|
    PCT/US2012/031416|WO2012138556A2|2011-04-07|2012-03-30|Borehole metal member bonding system and method|
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