• 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:
    well treatment methods and system. a well treatment method includes withdrawing a solvent from a first pump, withdrawing a humidifying liquid from a second pump, pumping the humidifying liquid through a polymer mixer using the second pump, combining the polymer with the wetting liquid to produce a slurry containing undissolved polymer, and combining the slurry with the solvent upstream of the first pump. another well treatment method includes increasing the polymer dissolution time by providing a buffering agent in the wetting liquid prior to combining the wetting liquid and polymer. A well treatment system includes a polymer mixing subsystem with a mixing circuit having an inlet line to the mixing circuit from a feed line to the first pump and an outlet line from the mixing circuit back to the pump. supply line of the first pump, the output line of the mixing circuit containing a polymer mixer.
    公开号:BR112013021984B1
    申请号:R112013021984-0
    申请日:2012-02-23
    公开日:2021-09-08
    发明作者:Jeremy L. Weinstein；Richard S. Wheeler
    申请人:Baker Hughes Incorporated；
    IPC主号:
    专利说明:

    RELATED ORDER DATA
    [001] The present application claims the benefit of priority, under 35 USC § 119, to US Interim Application No. 61/451,212, filed March 10, 2011, entitled "Well Treatment Methods and Systems", which is hereby incorporated by reference. FUNDAMENTALS OF THE INVENTION
    [002] The modalities described here refer, in general, to well treatment systems and methods.
    [003] A variety of known processes are used in the oil and gas industry for the treatment of wells extending into underground formations. Oil and gas well treatments include well completion, production stimulation, fluid loss control, and water production control. Gels comprise one of the variety of materials used in technology to carry out these treatments.
    [004] Fracture stimulation can be used to increase hydrocarbon production from wells, as in lower quality reserves. Known practices include forming a wellbore in an underground formation and inserting a well casing into the wellbore. Drilling in sections of a well casing allow high-pressure fracturing fluids to initiate and then propagate a fracture into the formation during each billing stage, while a fracturing fluid-laden proppant lodges in the fractures. A viscosifying agent, such as a gel, can assist with the suspended proppant carried by the fracturing fluid to reduce sedimentation before the proppant flows into the fractures. Gel can provide other benefits.
    [005] Known polymers for gel production used in fracturing or other treatment fluids include natural polymers such as guar gum, xanthan gum, and hydroxyethylcellulose (HEC), along with chemically modified guar gum derivatives, including hydroxypropyl guar (HPG), carboxymethylhydroxypropyl guar (CMHPG) and carboxymethyl guar (CMG). Natural polymers used for well treatment are often obtained as solids, for example powders or flakes. The solid polymer is dissolved in a solvent to provide a gel. For the case of water-soluble polymers, dissolution of the solid may involve hydration in water as the solvent. The polymer can be blended with a carrier fluid in a polymer to carrier fluid ratio to achieve the desired gel properties. The vehicle fluid is often a water-based fluid, although other fluids are known.
    [006] A significant amount of energy and space in known well treatment processes can be committed to dissolving polymers in the preparation of gels. Consequently, further advancement in well treatment systems and methods may also be beneficial. SUMMARY
    [007] A well treatment method includes withdrawing a solvent from a first liquid source to a first pump, and withdrawing a humidifying liquid from a second liquid source to a second pump separate from the first pump, and pump the humidification liquid through a polymer mixer using the second pump. Polymer is fed from a polymer feeder to the polymer mixer and thereupon combined with the wetting liquid to produce a slurry containing undissolved polymer. The method includes combining the slurry with the solvent upstream from the first pump and, using the first pump, pumping the slurry and solvent combination into a gel reservoir. The polymer is dissolved to produce a gel, and the gel is used in a well treatment process.
    [008] Another well treatment method includes withdrawing a solvent from a first liquid source to a first pump, and withdrawing a humidifying liquid from a second liquid source to a second pump separate from the first pump, and pump the wetting liquid through a polymer mixer using the second pump. Polymer is fed from a polymer feeder to the polymer mixer and thereupon combined with the wetting liquid to produce a slurry containing undissolved polymer. The method includes increasing the polymer dissolution time by providing a buffering agent in the wetting liquid before combining the wetting liquid and polymer, combining the slurry with the solvent and, using the first pump, pumping the slurry combination and of solvent to a gel reservoir. The polymer is dissolved to produce a gel, and the gel is used in a well treatment process.
    [009] A well treatment system includes a polymer mixing subsystem having a first pump, a feed line to the first pump, a discharge line from the first pump, and a mixing circuit. The mixing circuit includes a second pump separate from the first pump, a mixing circuit inlet line to the second pump from the first pump feed line, and a mixing circuit output line from the second pump. back to the first pump feed line, the mixing circuit output line including a polymer mixer. The system includes a polymer feeder configured to supply polymer to the polymer mixer, a flow meter in the first pump discharge line or in the first pump feed line between the mixing circuit output line and the first pump, and a process control device operatively linking the polymer feed rate provided by the polymer feeder and the flow rate determined by the flow meter. BRIEF DESCRIPTION OF THE DRAWINGS
    [010] FIG. 1 is a process flow diagram of a part of a well treatment system according to an embodiment.
    [011] Fig. 2 is a process flow diagram of a part of a well treatment system according to a modality.
    [012] While the description is susceptible to various modifications and alternative forms, specific modalities have been shown by way of example in the drawings, and will be described here in detail. However, it should be understood that the description is not intended to be limited to the particular forms disclosed. Rather, it is intended to include all modifications, equivalents and alternatives, covered by the appended claims. DETAILED DESCRIPTION
    [013] To reduce the energy consumed and the space used for preparing the liquid polymer from the solid polymer in a well treatment process, the solid polymer can be dispersed in a solvent at a concentration merely sufficient to produce a pumpable slurry containing the solvent and the undissolved polymer. Although the volume of solvent may not be sufficient to dissolve the polymer, a volume may be selected, depending on the properties of the polymer, sufficient to disperse the polymer in the solvent. Thereafter, dissolution can occur in the total amount of solvent desired for dissolution at a concentration that will be used or stored in concentrated form for subsequent dilution.
    [014] In this multi-stage process, the solid polymer can rapidly disperse in the solvent, to prevent agglomeration of polymer particles (eg, "fish eyes"), while reducing energy consumption and equipment size process compared to known methods. The initial dispersion and subsequent dilution can occur quickly enough that the slurry and subsequent combination of slurry and solvent can exhibit approximately the same physical properties as the solvent alone. Paste properties are not largely affected by the polymer that is just beginning to dissolve (or hydrate, in the case where water is the solvent).
    [015] According to an embodiment, a well treatment method includes withdrawing a solvent from a first liquid source to a first pump, and withdrawing a humidifying liquid from a second liquid source to a second pump separate from the first pump. The method includes pumping the wetting liquid through a polymer mixer using the second pump. The polymer is fed from a polymer feeder to the polymer mixer and thereupon combined with the wetting liquid to produce a slurry containing undissolved polymer. The method includes combining the slurry with the solvent upstream of the first pump and, using the first pump, pumping the slurry and solvent combination into a gel reservoir. The polymer is dissolved to produce a gel, and the gel is used in a well treatment process.
    [016] By way of example, the first source of liquid and the second source of liquid can be the same source of liquid or, instead, they can be different. In any case, the source(s) of liquid may include a water tank. Consequently, the solvent can include water such that dissolving the polymer involves hydrating the polymer. It is conceivable that the wetting liquid could be a hydrocarbon, such as mineral oil or diesel oil, so as to form the slurry. A hydrocarbon humidification liquid can be used when the solvent used to dissolve the polymer is water or when the solvent is an alcohol or a hydrocarbon. The polymer may include a solid, such as powder or flakes, although it is conceivable that the embodiments herein may be useful for diluting liquid polymers to desired concentrations. Possible polymers include guar, guar derivatives, xanthan, hydroxyethylcellulose, hydroxypropyl guar (HPG), carboxymethylhydroxypropyl guar (CMHPG), carboxymethyl guar (GMC), and combinations thereof.
    [017] The method may further include determining the flow rate of the combination of slurry and solvent and then adjusting the polymer feed rate based on the flow rate or adjusting the flow rate based on the feed rate of the polymer. That is, in a control scheme, a flow rate for the slurry and solvent combination is selected and then the polymer feed rate is adjusted to provide a desired polymer concentration in the slurry and solvent combination. . In another control scheme, the polymer feed rate corresponds to a desired polymer loading rate into a well and then the flow rate of the slurry and solvent combination is adjusted to provide a desired polymer concentration. The polymer and the wetting liquid can be provided in respective amounts that would be insufficient to produce a pumpable material, if the amount of polymer and the amount of the wetting liquid were allowed to complete the solvation. That is, if the maximum amount of wetting liquid is solvate supplied with the polymer, then the combination would not be pumpable. The combination of wetting liquid and polymer is then diluted with the solvent.
    [018] In another embodiment, a well treatment method includes withdrawing a solvent from a first liquid source to a first pump, and withdrawing a humidifying liquid from a second liquid source to a second pump separate from the first bomb. The method includes pumping the wetting liquid through a polymer mixer using the second pump. Polymer is fed from a polymer feeder to the polymer mixer and thereupon combined with the wetting liquid to produce a slurry containing undissolved polymer. The method includes increasing the polymer dissolution time by providing a buffering agent in the wetting liquid before combining the wetting liquid and polymer. Slurry and solvent are combined and, using the first pump, pumped into a gel reservoir. The polymer is dissolved to produce a gel, and the gel is used in a well treatment process. By way of example, the method may further include decreasing the polymer dissolution time by providing another buffering agent in the paste and solvent combination.
    [019] Although the speed of combination of polymer and wetting liquid, followed by further combination of the slurry with the solvent, may be sufficient to provide adequate dispersion, the process opening can be increased in extent with the use of an agent of tamponade. Known buffering agents for aqueous systems have been used to delay polymer hydration by raising the pH to 9 or greater. Consequently, providing the buffering agent in the wetting liquid before combining the wetting liquid and the polymer can increase the process opening, during which the polymer and wetting liquid can be combined in the polymer mixer and subsequently combined with the solvent before the transition paste properties are significantly different from those of the vehicle alone.
    [020] In general, the known methods have an objective of accelerating the hydration to reduce the retention times to hydrate the gel and to allow a greater responsiveness of the process. Thus, it can be counterintuitive to intentionally delay hydration. If a buffering agent is used to delay hydration during dispersion, or even if it is not, then another buffering agent can later be used to accelerate hydration by lowering the pH to 7 or lower. Such subsequent use of a buffering agent to shorten dissolution time, after using a buffering agent to increase dissolution time can counteract a disadvantage to shortening dissolution time while still increasing the length of process opening for the combination of polymer and wetting liquid. In this way, the probability of cluster formation can be reduced.
    [021] In another embodiment, a well treatment method includes, using a suction pump, pumping a hydration liquid from a liquid source through a suction line to the suction pump, and from the pump suction through a discharge line to a gel reservoir. Using an auxiliary pump separate from the suction pump, a portion of the liquid from the suction pump's suction line is pumped as a humidifying liquid through an inlet line of the mixing circuit to an auxiliary pump, and from an auxiliary pump through an output line from the mixing circuit back to the suction line of the suction pump.
    [022] The method includes supplying the polymer from a polymer feeder to a polymer mixer in the output line of the mixing circuit and mixing the wetting liquid and polymer therein to produce a slurry containing the unhydrated polymer . Slurry flows through the mixing circuit outlet line to the hydration liquid in the suction pump suction line and, using the suction pump, the slurry and hydration liquid combination is pumped into the gel reservoir. The method includes using a flow meter in the suction pump discharge line or suction pump suction line, between the mix circuit outlet line and the suction pump, and determining a flow rate of the combination of hydration paste and liquid. A process control device operatively connected to the polymer feeder and a suction pump is used to adjust the polymer feed rate based on the flow rate or to adjust the flow rate based on the polymer feed rate . The polymer is hydrated to produce a gel, and the gel is used in a well treatment process.
    [023] By way of example, the flow meter can be selected to be in the suction pump discharge line. While a variety of flowmeters can be used, magnetic or other flowmeters that do not induce a significant pressure drop can be used either on the suction side or on the discharge side of the suction pump. However, an orifice plate flowmeter or turbine would normally be used on the discharge side of the suction pump due to the induced pressure drop. The polymer and wetting liquid can be provided in respective amounts that would be insufficient to completely hydrate the polymer, if the amount of polymer and the amount of wetting liquid were allowed to complete the hydration.
    [024] Figure 1 shows a process flow diagram of a well treatment system 10 including a water tank 12, a gel tank 28, and a polymer blending subsystem comprising the other components. The polymer blending subsystem includes a suction pump 24, a suction line to suction pump 24 connected to water tank 12, and a discharge line from suction pump 24 connected to gel tank 28. Polymer blending subsystem also includes a blending circuit. The mixing circuit, in turn, includes an auxiliary pump 16, a mixing circuit inlet line to the auxiliary pump 16 from the suction pump suction line, and an output line from the pump mixing circuit. auxiliary 16 back to the suction pump suction line. The output line of the mixing circuit includes a polymer mixer 20. A polymer feeder 18 of the polymer mixing subsystem is configured to supply the polymer to polymer mixer 20. The polymer mixing subsystem further includes a meter. flow 26 in the suction pump discharge line and a process control device (not shown) operatively linking the polymer feed rate provided by polymer feed 18 and the flow rate determined by flow meter 26.
    [025] As can be appreciated from the description presented here, the well treatment system 10 can be used to efficiently produce a gel by hydrating a polymer with water from the water tank 12. The well treatment system 10 it may also be suitable for use with other solvents. The polymer mixing subsystem includes an isolation valve 14 and an isolation valve 22 to isolate the mixing circuit for maintenance or other purposes. The modalities of a well treatment method described herein may also be performed in the well treatment system 10. As such, the polymer blend subsystem of the well treatment system 10 further includes a plug addition port 30 used to raise the pH, and a buffer 32 addition hole used to lower the pH. 30/32 buffer addition holes thus allow some control over the polymer hydration rate in the well 10 treatment system.
    [026] Figure 2 shows a process flow diagram of a well treatment system 40. All components of the well treatment system 10 shown in Figure 1 are also included in the well treatment system 40. the location of the suction pump 24 and flow meter 26 is changed to be upstream of the mixing circuit inlet line to the auxiliary pump 16. With this change, a back pressure valve 42 is provided to produce a steady flow at low flow rates. US Patent Application No. 2008/0264641, published Oct. 30, 2008, describes a similar process flow diagram in its Figure 5. In contrast, some of the embodiments herein describe combination of wetting liquid/polymer slurry with a solvent upstream of a first pump, such as a suction pump 24. This feature of a method is not realized in the well treatment system 40 of Figure 2 since the mixing circuit inlet and outlet lines are downstream of suction pump 24. However, other modalities described herein can be performed in well treatment system 40. For example, the method of increasing polymer dissolution time by providing a buffering agent in the wetting liquid can be carried out in the 40 well treatment system.
    [027] In the operating well treatment system 10, auxiliary pump 16 can operate at a fixed rate (revolutions per minute (rpm)). Polymer mixer 20 has a fixed resistance in the mixing circuit; therefore, the mixing circuit can operate at a fixed humidification fluid flow rate and a fixed pressure when provided by an auxiliary pump 16. Suction pump 24 can operate at a variable rate (rpm) to adjust the rate of flow to gel tank 28, as determined by flow meter 26. The polymer flow rate provided by polymer feed 18 is then adjusted based on the flow rate of slurry and water through a flow meter. 26. With a constant wetting fluid flow rate and variable polymer flow rate, the polymer concentration in the slurry varies, but provides a desired concentration after combining with the controlled flow rate of hydration liquid (water) . Gel tank 28 can provide adequate residence time to achieve complete hydration and a desired viscosity for the gel to function as a viscosifying agent in well treatment processes.
    [028] Known mixing technologies can be used in the polymer mixer 20, for example, a rotary shear device, a high-shear ejector or in an open vessel with a high-shear head. Respective examples include a FLASHMIX FMX, available from Silverson in Chesham, UK, an AZ MIXING EDUTOR available from Compatible Components Corporation, Houston, Texas, and a high-speed disperser available from Charles Ross & Son Company in Hauppauge, New York.
    [029] In the operating well treatment system 40, there are some differences compared to the operating well treatment system 10. For example, a process stability benefit at reduced slurry variability can be obtained by the polymer mixer in operation 20, at a fixed pressure. The well treatment system 10 allows a polymer mixer 20 to operate at a fixed pressure in a more robust process control scheme than can be arranged in the well treatment system 40. In system 40, the operating rate (rpm) ) of the auxiliary pump 16 can be varied to accommodate pressure fluctuations in the discharge line of the suction pump 24, from which the auxiliary pump 16 draws its supply. However, in system 10, the pressure in the suction line of the suction pump 24 varies much less, if at all, even when the operating rate (rpm) is varied in accordance with the desired flow rates. Since auxiliary pump 16 draws its feed from the suction line in well treatment system 10, control of auxiliary pump 16 can be simplified when auxiliary pump 16 operates at essentially a fixed rate to provide a fixed pressure to the polymer mixer 20.
    [030] In another embodiment, a well treatment system includes a polymer blending subsystem. The subsystem includes a first pump, a feed line from the first pump, and a discharge line from the first pump. A mixing circuit includes a second pump separate from the first pump, a mixing circuit inlet line to the second pump from the first pump feed line, and a mixing circuit output line from the second mixing pump. back to the feed line of the first bomb. The output line from the mixing circuit includes a polymer mixer. The subsystem includes a polymer feeder configured to supply polymer to the polymer mixer, and a flow meter in the first pump discharge line or in the first pump feed line between the mixing circuit output line and the first pump. A process control device operatively links the polymer feed rate provided by the polymer feeder and the flow rate determined by the flowmeter.
    [031] By way of example, the well treatment system may include a liquid source connected to the polymer mixing subsystem feed line and a gel reservoir connected to the polymer mixing subsystem discharge line. Consequently, the polymer blend subsystem can be mounted on a portable platform, such as a sliding platform, easily relocated, and reinstalled after connection to a water tank and a gel tank.
    [032] Although various embodiments have been shown and described, the present description is not so limited and will be understood to include all such modifications and variations as would be apparent to one skilled in the art. NUMBER REFERENCE TABLE FOR FIGURES 1 AND 2 10 - Polymer Mixing Subsystem 12 - Water Tank 14 - Isolation Valve 16 - Auxiliary Pump 18 - Polymer Feeder 20 - Polymer Mixer 22 - Isolation Valve 24 - Pump suction 26 - Flow meter 28 - Gel tank 30 - Buffer addition port 32 - Buffer addition port40 - Polymer mixing subsystem42 - Back pressure valve
    权利要求:
    Claims (4)
    [0001]
    1. Well treatment method, CHARACTERIZED in that it comprises: using a suction pump (24), pumping a hydration liquid from a liquid source (12) through a suction line to the suction pump ( 24) and from the suction pump (24) through a discharge line to a gel reservoir (28); using an auxiliary pump (16) separate from the suction pump (24), pumping a portion of the hydration liquid from the suction pump suction line (24) as a wetting liquid through a mixing circuit inlet line to the auxiliary pump (16), and from the auxiliary pump (16) through a line of mixing loop output back to the suction pump suction line (24); supplying a polymer from a polymer feeder (18) to a polymer mixer (20) in the mixing loop output line and , therein, mixing the wetting liquid and the polymer to produce a paste containing polymer unhydrated ro; flow the slurry through the mixing circuit outlet line to the hydration liquid in the suction pump suction line (24) and, using the suction pump (24), pump the slurry and slurry combination. hydration liquid to the gel reservoir (28); using a flow meter (26) in the suction pump discharge line or in the suction pump suction line between the mixing circuit output line and the pump suction (24), determining a flow rate of the combination of slurry and hydration liquid; using a process control device operatively connected to the polymer feed (18) and the suction pump (24), adjusting the feed rate polymer based on flow rate or adjust flow rate based on polymer feed rate; ehydrate the polymer to produce a gel, and use the gel in a well treatment process.
    [0002]
    2. Method according to claim 1, CHARACTERIZED by the fact that the flow meter (26) is in the discharge line of the suction pump (24), wherein the method further comprises increasing the hydration time of the polymer to the providing a buffering agent in the wetting liquid prior to mixing the wetting liquid and polymer and then reducing the polymer hydration time by providing another buffering agent in the slurry and hydrating liquid combination; or wherein the polymer and wetting liquid are provided in respective amounts that would be insufficient to completely hydrate the polymer if the amount of polymer and the amount of wetting liquid were allowed to complete the hydration.
    [0003]
    3. Well treatment system (10) CHARACTERIZED by the fact that it comprises a polymer blending subsystem including: a first pump (18), a feed line to the first pump, and a discharge line from the first pump ; a mixing circuit including a second pump separate from the first pump, a mixing circuit inlet line to the second pump (16) from the first pump feed line, and a mixing circuit output line from the second pump back to the first pump feed line, the mixing circuit output line including a polymer mixer (20); a polymer feeder (18) configured to supply polymer to the polymer mixer (20); a flow meter (26) in the first pump discharge line or in the first pump feed line between the mixing circuit outlet line and the first pump; and a process control device operatively linking the polymer feed rate provided by the polymer feeder (18) and the flow rate determined by the flow meter (26).
    [0004]
    4. System (10) according to claim 3, CHARACTERIZED by the fact that the well treatment system includes a liquid source connected to the polymer mixing subsystem feed line and a gel reservoir connected to the discharging the polymer blending subsystem; wherein the process control device is configured to adjust the polymer feed rate based on the flow rate or is configured to adjust the flow rate based on the polymer feed rate; wherein the system further comprises a buffering agent adding device in the mixing circuit inlet line and another buffering agent adding device in the first pump feed line between the mixing circuit output line and the first pump or in the discharge line of the first pump; wherein the polymer blending subsystem is mounted on a portable platform; or where the inlet line of the mixing circuit is separated from the feed line of the first pump.
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112013021984B1|2021-09-08|WELL TREATMENT METHODS AND SYSTEM
    US10124307B2|2018-11-13|Viscous fluid dilution system and method thereof
    US9447313B2|2016-09-20|Hydration system for hydrating an additive and method
    US7931088B2|2011-04-26|Methods for treating a well by simultaneously introducing into a mixer streams of water, a viscosity-increasing agent, and a particulate and introducing the mixture into the well
    US8800659B2|2014-08-12|Equipment for quick dispersion of polyacrylamide powder for fracturing operations
    US9328599B2|2016-05-03|Centre for the preparation of additives for hydraulic fracturing operations and hydraulic fracturing process employing the preparation centre
    WO2010031804A2|2010-03-25|Polymer gels as flow improvers in water injection systems
    BRPI0921568B1|2019-11-19|drilling fluid mixing method, high shear mixing unit, fluid processing method
    AU2017324961A1|2019-03-07|Systems and methods for injecting fluids into high pressure injector line
    EP0845291A1|1998-06-03|Homogenizer/high shear mixing process for on-the-fly hydration of fracturing fluids and on-the-fly mixing of cement slurries
    US10544665B2|2020-01-28|Method for calculating optimum gel concentration and dilution ratio for fracturing applications
    US10641075B2|2020-05-05|Increasing hydration time of high concentration gels
    BR112014018885B1|2021-08-24|METHOD OF FRACTURING AN UNDERGROUND FORMATION
    US20180312743A1|2018-11-01|Gel hydration units with pneumatic and mechanical systems to reduce channeling of viscous fluid
    BR112016008284B1|2021-12-21|METHOD TO STIMULATE AN UNDERGROUND FORMATION PENETRATE BY WELL
    WO2015076786A1|2015-05-28|Multi-pump systems for manufacturing hydraulic fracturing fluid
    同族专利:
    公开号 | 公开日
    MX2013010292A|2013-10-17|
    CN103492664B|2016-10-05|
    BR112013021984A2|2016-11-16|
    WO2012121896A3|2013-04-25|
    RU2594915C2|2016-08-20|
    AR085658A1|2013-10-16|
    WO2012121896A2|2012-09-13|
    EP2683910B1|2019-04-03|
    EP2683910A2|2014-01-15|
    AU2012225874A1|2013-08-29|
    AU2012225874B2|2016-07-21|
    CN103492664A|2014-01-01|
    MX359505B|2018-09-26|
    RU2013145302A|2015-04-20|
    US8746338B2|2014-06-10|
    CA2826896A1|2012-09-13|
    CA2826896C|2016-03-29|
    CO6791602A2|2013-11-14|
    US20120231982A1|2012-09-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4336145A|1979-07-12|1982-06-22|Halliburton Company|Liquid gel concentrates and methods of using the same|
    US4828034A|1987-08-14|1989-05-09|Dowell Schlumberger Incorporated|Method of hydrating oil based fracturing concentrate and continuous fracturing process using same|
    US5190374A|1991-04-29|1993-03-02|Halliburton Company|Method and apparatus for continuously mixing well treatment fluids|
    US5382411A|1993-01-05|1995-01-17|Halliburton Company|Apparatus and method for continuously mixing fluids|
    CA2114294A1|1993-01-05|1995-07-27|Thomas Earle Allen|Apparatus and method for continuously mixing fluids|
    CA2220972C|1996-11-29|1999-03-09|Canadian Fracmaster Ltd.|Homogenizer/high shear mixing technology for on-the-fly hydration of fracturing fluids and on-the-fly mixing of cement slurries|
    US6216801B1|1998-04-03|2001-04-17|American Polywater Corporation|Method and apparatus for providing proportional injection of additives into drilling fluids|
    DE29818289U1|1998-10-14|1999-09-23|Tracto Technik|Continuous mixing plant|
    EP1146067A1|1998-12-25|2001-10-17|Mitsui Chemicals, Inc.|Process and apparatus for continuous production of crosslinked polymer|
    US6796704B1|2000-06-06|2004-09-28|W. Gerald Lott|Apparatus and method for mixing components with a venturi arrangement|
    US7581872B2|2003-04-30|2009-09-01|Serva Corporation|Gel mixing system|
    US7048432B2|2003-06-19|2006-05-23|Halliburton Energy Services, Inc.|Method and apparatus for hydrating a gel for use in a subterranean formation|
    US7794135B2|2004-11-05|2010-09-14|Schlumberger Technology Corporation|Dry polymer hydration apparatus and methods of use|
    US20080264641A1|2007-04-30|2008-10-30|Slabaugh Billy F|Blending Fracturing Gel|
    FR2922256B1|2007-10-12|2010-03-12|Spcm Sa|INSTALLATION FOR THE ASSISTED RECOVERY OF OIL USING WATER-SOLUBLE POLYMERS, METHOD USING THE INSTALLATION|
    FR2922255B1|2007-10-12|2010-03-12|Spcm Sa|INSTALLATION FOR THE ASSISTED RECOVERY OF OIL USING WATER-SOLUBLE POLYMERS, METHOD USING THE INSTALLATION|
    US7888294B2|2008-09-18|2011-02-15|Halliburton Energy Services Inc.|Energy recovery and reuse for gel production|US9592479B2|2012-05-16|2017-03-14|Halliburton Energy Services, Inc.|Automatic flow control in mixing fracturing gel|
    US10633174B2|2013-08-08|2020-04-28|Schlumberger Technology Corporation|Mobile oilfield materialtransfer unit|
    US20140041322A1|2012-08-13|2014-02-13|Schlumberger Technology Corporation|System and method for delivery of oilfield materials|
    US10150612B2|2013-08-09|2018-12-11|Schlumberger Technology Corporation|System and method for delivery of oilfield materials|
    US9447313B2|2013-06-06|2016-09-20|Baker Hughes Incorporated|Hydration system for hydrating an additive and method|
    US9452394B2|2013-06-06|2016-09-27|Baker Hughes Incorporated|Viscous fluid dilution system and method thereof|
    US20150072901A1|2013-09-09|2015-03-12|Clearwater International Llc|Lost circulation and fluid loss materials containing guar chaff and methods for making and using same|
    US9593565B2|2013-09-18|2017-03-14|Schlumberger Technology Corporation|Wellsite handling system for packaged wellsite materials and method of using same|
    US10464071B2|2013-09-18|2019-11-05|Schlumberger Technology Corporation|System and method for preparing a treatment fluid|
    US9656221B2|2014-01-24|2017-05-23|Baker Hughes Incorporated|Systems and methods for treating fluids|
    US10137420B2|2014-02-27|2018-11-27|Schlumberger Technology Corporation|Mixing apparatus with stator and method|
    CN106460492B|2014-05-12|2020-03-06|施蓝姆伯格技术公司|Hydration systems and methods|
    CN104005743A|2014-05-15|2014-08-27|天津市通洁高压泵制造有限公司|Intelligent polymer injection pump station|
    CN106285612B|2015-05-25|2019-02-15|中国石油天然气股份有限公司|A kind of real-time control acid concentration method for oil gas field acid fracturing|
    CN107060706A|2017-04-28|2017-08-18|中国海洋石油总公司|A kind of new on-line continuous prepares profile control transfer drive device|
    US11105185B2|2017-09-01|2021-08-31|S.P.M Flow Control, Inc.|Fluid delivery device for a hydraulic fracturing system|
    CN113318654A|2021-04-26|2021-08-31|四川宏华石油设备有限公司|Fracturing fluid blending device and method|
    法律状态:
    2018-12-18| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-11-12| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-01-19| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|
    2021-08-10| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-09-08| 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 23/02/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201161451212P| true| 2011-03-10|2011-03-10|
    US61/451,212|2011-03-10|
    US13/363,013|US8746338B2|2011-03-10|2012-01-31|Well treatment methods and systems|
    US13/363,013|2012-01-31|
    PCT/US2012/026388|WO2012121896A2|2011-03-10|2012-02-23|Well treatment methods and systems|
    [返回顶部]