CN104295272B - Oil recovery water control device - Google Patents

Oil recovery water control device Download PDF

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Publication number
CN104295272B
CN104295272B CN201410586060.6A CN201410586060A CN104295272B CN 104295272 B CN104295272 B CN 104295272B CN 201410586060 A CN201410586060 A CN 201410586060A CN 104295272 B CN104295272 B CN 104295272B
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China
Prior art keywords
base tube
cylinder
mounting groove
outside
seal
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CN201410586060.6A
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Chinese (zh)
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CN104295272A (en
Inventor
陈若铭
李晓军
张昕
张胜鹏
李富强
姚小龙
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China National Petroleum Corp
CNPC Xibu Drilling Engineering Co Ltd
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CNPC Xibu Drilling Engineering Co Ltd
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Priority to CN201410586060.6A priority Critical patent/CN104295272B/en
Publication of CN104295272A publication Critical patent/CN104295272A/en
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02Subsoil filtering
    • E21B43/08Screens or liners
    • E21B43/086Screens with preformed openings, e.g. slotted liners

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Filtration Of Liquid (AREA)

Abstract

The present invention relates to petroleum production engineering device technique field, be a kind of oil recovery water control device;It includes box cupling, upper seal bore, urceolus and base tube;Outside the upper end of base tube, the lower inside with box cupling is fixedly installed togather, upper outside at base tube is installed with top connection, the lower inside of top connection and the upper outside of upper seal bore are fixedly installed togather, upper outside at base tube is installed with lower seal cylinder, and the bottom of urceolus is provided with the first annular groove.Present configuration is reasonable and compact; easy to use; by box cupling, upper seal bore, lower seal cylinder, urceolus, base tube, interior protection cylinder, inner filter screen, supporting network, outer filter and outer protection cylinder with the use of; realize filtering the purpose of stratum fluid; have that oil strain is effective, quick detachable and the feature of good sealing effect; facilitate operation, improve production efficiency, reduce production cost.

Description

Oil recovery water control device
Technical field
The present invention relates to petroleum production engineering device technique field, be a kind of oil recovery water control device.
Background technology
During the digging construction operation of straight well or exceptional well, it is often necessary to according to stratum producing pressure differential to each section of oil well Position carries out packing control water oil producing operation to prevent bottom water coning.This construction technology needs to use in pit shaft, prevents from executing in oil recovery Bottom water coning during work industry.And the oil recovery water control device of routine is dependent on welding by parts and base tubes such as top connection, lower seal cylinders Fixing connection, its Welding Structure easily makes the deformation of these key part structure cause seal failure.Meanwhile, the parts after welding Become disposable extracting device of oil, it is impossible to carry out the change of physical dimension again, so cause cost up, conventional filter net device not Can the effective series of problems such as oil strain.
Summary of the invention
The invention provides a kind of oil recovery water control device, overcome the deficiency of above-mentioned prior art, it can effectively solve often The oil recovery water control device of rule is integral type structure, and critical component is yielding and causes seal failure, cost high and oil strain weak effect Problem.
The technical scheme is that and realized by following measures: a kind of oil recovery water control device, including box cupling, upper close Sealed tube, urceolus and base tube;Outside the upper end of base tube, the lower inside with box cupling is fixedly installed togather, in the upper outside of base tube Being installed with top connection, the lower inside of top connection and the upper outside of upper seal bore are fixedly installed togather, at base tube Upper outside is installed with lower seal cylinder, is provided with the first annular groove in the bottom of urceolus, the upper surface seat of the first annular groove under In the outer rim of sealing drum, formed between base tube, upper seal bore, urceolus and lower seal cylinder and seal diversion cavity, base tube has at least One pod apertures being connected with sealing diversion cavity;Snap ring on being fixedly connected with outside the middle part of base tube, at lower seal cylinder Lower end is integrally fixed with the internal diameter lower shell more than lower seal cylinder internal diameter, and the lower inside at lower shell is provided with the second annular groove, The upper surface seat of the second annular groove, in the outer rim of upper snap ring, forms Seal Oil between base tube, lower seal cylinder, lower shell and upper snap ring Chamber, has at least one metering hole being connected with sealing diversion cavity and seal oil chamber on lower seal cylinder;Solid in the bottom of base tube Determine connection and have lower snap ring, be installed with the most successively outside the base tube between upper snap ring and lower snap ring interior protection cylinder, Inner filter screen, supporting network, outer filter and outer protection cylinder, at the liquid stream being provided with at least two axially outside of interior protection cylinder Groove, has the liquid flow hole corresponding with spout on upper snap ring vertically, and liquid flow hole is connected with spout and seal oil chamber respectively Logical, inlet opening is distributed on protection cylinder outside.
Further optimization and/or improvements to foregoing invention technical scheme are presented herein below:
The above-mentioned outer felt at interior protection cylinder is wound with wrapping wire.
Above-mentioned metering hole is the stepped hole that the big lower inner diameter of upper inner diameter is little, fixedly mounts current limiting on the top of metering hole Cylinder.
The above-mentioned upper outside at base tube is provided with first annular mounting groove, is installed with first in first annular mounting groove Spacing ring, the upper inner in top connection is integrally fixed with annular chuck, and the lower end seat of annular chuck is outside the first spacing ring On edge upper surface;Upper outside at base tube is provided with the second annular mounting groove, is installed with second in the second annular mounting groove Spacing ring, the lower end seat of upper seal bore is on the outer rim upper surface of the second spacing ring.
The above-mentioned lower outside at upper snap ring is provided with mounting groove on outer protection cylinder, and the upper inner at lower snap ring is provided with Fixture block mounting groove, is provided with fixture block in fixture block mounting groove, is provided with under outer protection cylinder installation on the inwall of fixture block mounting groove Groove, in the top and bottom of outer protection cylinder are respectively and fixedly installed on outer protection cylinder mounting groove and under outer protection cylinder in mounting groove, Interior protection cylinder, inner filter screen, supporting network, outer it is installed with the most successively outside base tube between fixture block and upper snap ring Metafiltration net;Or/and, there are external screw thread or female thread on the top of box cupling, have external screw thread or female thread in the lower end of base tube.
Above-mentioned box cupling and base tube are threadably secured and are installed together, and top connection and upper seal bore are threadably secured installation Together, top connection and upper seal bore are fixedly installed togather by trip bolt;Or/and, between upper seal bore and base tube Sealing ring is installed, sealing ring is installed between upper seal bore and urceolus, between lower seal cylinder and base tube, sealing is installed Circle, lower seal cylinder and and urceolus between sealing ring is installed.
Present configuration is reasonable and compact, easy to use, by box cupling, upper seal bore, lower seal cylinder, urceolus, base tube, interior Protection cylinder, inner filter screen, supporting network, outer filter and outer protection cylinder with the use of, it is achieved filter the purpose of stratum fluid, tool There is oil strain effective, quick detachable and the feature of good sealing effect, facilitate operation, improve production efficiency, reduce and produce into This.
Accompanying drawing explanation
Accompanying drawing 1 is that the master of preferred embodiment regards broken section structural representation.
Accompanying drawing 2 is that the amplification of top half of the present invention is main regarding half section structural representation.
Accompanying drawing 3 is that the amplification of the latter half of the present invention is main regarding broken section structural representation.
It is box cupling that coding in accompanying drawing is respectively as follows: 1, and 2 is upper seal bore, and 3 is urceolus, and 4 is base tube, and 5 is top connection, and 6 are Lower seal cylinder, 7 for sealing diversion cavity, and 8 is pod apertures, and 9 is upper snap ring, and 10 is lower shell, and 11 is seal oil chamber, and 12 is current limliting Hole, 13 is lower snap ring, and 14 is interior protection cylinder, and 15 is inner filter screen, and 16 is supporting network, and 17 is outer filter, and 18 is outer protection cylinder, 19 is spout, and 20 is liquid flow hole, and 21 is inlet opening, and 22 is wrapping wire, and 23 are limited flow cartridge, and 24 is the first spacing ring, and 25 is annular Chuck, 26 is the second spacing ring, and 27 is trip bolt.
Detailed description of the invention
The present invention is not limited by following embodiment, can determine specifically according to technical scheme and practical situation Embodiment.
In the present invention, for the ease of describing, the description of the relative position relation of each parts is all according to Figure of description 1 Butut mode be described, such as: the position relationship of forward and backward, upper and lower, left and right etc. is based on the cloth of Figure of description 1 Figure direction determines.
Below in conjunction with embodiment and accompanying drawing, the invention will be further described:
As shown in accompanying drawing 1,2,3, this oil recovery water control device includes box cupling 1, upper seal bore 2, urceolus 3 and base tube 4;Base tube 4 Upper end outside and the lower inside of box cupling 1 be fixedly installed togather, the upper outside at base tube 4 is installed with top connection 5, The lower inside of top connection 5 and the upper outside of upper seal bore 2 are fixedly installed togather, the fixing peace of upper outside at base tube 4 Equipped with lower seal cylinder 6, being provided with the first annular groove in the bottom of urceolus 3, the upper surface seat of the first annular groove is in the outer rim of lower seal cylinder 6 On, between base tube 4, upper seal bore 2, urceolus 3 and lower seal cylinder 6 formed seal diversion cavity 7, base tube 4 has at least one with Seal the pod apertures 8 that diversion cavity 7 is connected;Snap ring 9 it is fixedly connected with, in lower seal cylinder 6 times outside the middle part of base tube 4 End is integrally fixed with the internal diameter lower shell 10 more than lower seal cylinder 6 internal diameter, and the lower inside at lower shell 10 is provided with the second ring Groove, the upper surface seat of the second annular groove is in the outer rim of upper snap ring 9, between base tube 4, lower seal cylinder 6, lower shell 10 and upper snap ring 9 Form seal oil chamber 11, lower seal cylinder 6 has at least one metering hole being connected with sealing diversion cavity 7 and seal oil chamber 11 12;It is fixedly connected with lower snap ring 13, in the bottom of base tube 4 outside the base tube 4 between upper snap ring 9 and lower snap ring 13 from inside to outside It is installed with interior protection cylinder 14, inner filter screen 15, supporting network 16, outer filter 17 and outer protection cylinder 18 successively, in interior protection The spout 19 being provided with at least two axially outside of cylinder 14, has corresponding with spout 19 on upper snap ring 9 vertically Liquid flow hole 20, liquid flow hole 20 is connected with spout 19 and seal oil chamber 11 respectively, outside protection cylinder 18 on feed liquor is distributed Hole 21.So, inner filter screen 15, supporting network 16 and outer filter 17 are easy to filter stratum fluid, make filter effect more preferable;Interior guarantor Casing 14 and outer protection cylinder 18 play protection inner filter screen 15, supporting network 16 and the effect of outer filter 17.
According to actual needs above-mentioned oil recovery water control device can be made further optimization and/or improvements:
As shown in accompanying drawing 1,3, the outer felt at interior protection cylinder 14 is wound with wrapping wire 22.So, wrapping wire 22 is easy to preferably rise To the effect filtering stratum fluid.
As shown in accompanying drawing 1,2, metering hole 12 is the stepped hole that the big lower inner diameter of upper inner diameter is little, on the top of metering hole 12 Fixed installation current limiting cylinder 23.Current limliting cylinder 23 is tungsten carbide current limliting cylinder, so, for fluid current limliting to prevent bottom water coning.
As shown in accompanying drawing 1,2, the upper outside at base tube 4 is provided with first annular mounting groove, at first annular mounting groove Inside being installed with the first spacing ring 24, the upper inner in top connection 5 is integrally fixed with annular chuck 25, the lower end of annular chuck 25 Seat is on the outer rim upper surface of the first spacing ring 24;Upper outside at base tube 4 is provided with the second annular mounting groove, at the second ring Being installed with the second spacing ring 26 in shape mounting groove, the lower end seat of upper seal bore 2 is on the outer rim upper surface of the second spacing ring 26.This Sample, it is simple to top connection 5 and the installation and removal of upper seal bore 2.
As shown in accompanying drawing 1,2,3, the lower outside at upper snap ring 9 is provided with mounting groove on outer protection cylinder, at lower snap ring 13 Upper inner be provided with fixture block mounting groove, fixture block 27 is installed in fixture block mounting groove, the inwall of fixture block mounting groove sets Be equipped with mounting groove under outer protection cylinder, in the top and bottom of outer protection cylinder 18 are respectively and fixedly installed on outer protection cylinder mounting groove and Under outer protection cylinder in mounting groove, outside the base tube 4 between fixture block 27 and upper snap ring 9, it is installed with interior guarantor the most successively Casing 14, inner filter screen 15, supporting network 16, outer filter 17;Or/and, there are external screw thread or female thread on the top of box cupling 1, There are external screw thread or female thread in the lower end of base tube 4.So, it is simple to by interior protection cylinder 14, inner filter screen 15, supporting network 16, outer metafiltration Net 17 and outer protection cylinder 18 are preferably fixedly installed togather, and prevent interior protection cylinder 14, inner filter screen 15, supporting network 16, outer layer Filter screen 17 and outer protection cylinder 18 deform.
As shown in accompanying drawing 1,2,3, box cupling 1 and base tube 4 are threadably secured and are installed together, top connection 5 and upper seal bore 2 Being threadably secured and be installed together, top connection 5 and upper seal bore 2 are fixedly installed togather by trip bolt 27;Or/and, Between upper seal bore 2 and base tube 4, sealing ring is installed, between upper seal bore 2 and urceolus 3, sealing ring is installed, under close Between sealed tube 6 and base tube 4, sealing ring is installed, lower seal cylinder 6 and and urceolus 3 between sealing ring is installed.So, spiral shell is passed through Stricture of vagina and trip bolt 27 are easily installed and dismantle;Make sealing effectiveness more preferable by sealing ring.
Above technical characteristic constitutes highly preferred embodiment of the present invention, and it has stronger adaptability and most preferably implements effect Really, non-essential technical characteristic can be increased and decreased according to actual needs, meet the demand of different situations.
The use process of preferred embodiment: during onsite application, according to each relevant parameter in on-the-spot stratum, by several Invention is cascaded, and then connecting with other flow string string is lowered in well, down to design level position;When recovering the oil, in stratum Fluid entered by the inlet opening 21 on outer protection cylinder 18, through outer filter 17, supporting network 16, inner filter screen 15 and wrapping wire 22 After filtration, flow through liquid flow hole 20, seal oil chamber 11, metering hole 12 successively by the spout 19 on interior protection cylinder 14, seal and lead Stream chamber 7 and pod apertures 8 enter in the cavity of base tube 4.

Claims (12)

1. an oil recovery water control device, it is characterised in that include box cupling, upper seal bore, urceolus and base tube;Outside the upper end of base tube Being fixedly installed togather with the lower inside of box cupling, the upper outside at base tube is installed with top connection, the bottom of top connection The upper outside of inner side and upper seal bore is fixedly installed togather, and the upper outside at base tube is installed with lower seal cylinder, The bottom of urceolus is provided with the first annular groove, the upper surface seat of the first annular groove in the outer rim of lower seal cylinder, base tube, upper seal bore, Formed between urceolus and lower seal cylinder and seal diversion cavity, base tube has at least one and seals the water conservancy diversion that diversion cavity is connected Hole;Snap ring on being fixedly connected with outside the middle part of base tube, is integrally fixed with internal diameter more than lower seal in the lower end of lower seal cylinder The lower shell of cylinder internal diameter, the lower inside at lower shell is provided with the second annular groove, and the upper surface seat of the second annular groove is at upper snap ring In outer rim, between base tube, lower seal cylinder, lower shell and upper snap ring formed seal oil chamber, lower seal cylinder has at least one with Seal the metering hole that diversion cavity is connected with seal oil chamber;Be fixedly connected with lower snap ring in the bottom of base tube, upper snap ring and under Interior protection cylinder, inner filter screen, supporting network, outer filter and outer it is installed with the most successively outside base tube between snap ring Protection cylinder, at the spout being provided with at least two axially outside of interior protection cylinder, has and liquid stream on upper snap ring vertically The liquid flow hole that groove is corresponding, liquid flow hole is connected with spout and seal oil chamber respectively, inlet opening is distributed outside on protection cylinder.
Oil recovery water control device the most according to claim 1, it is characterised in that the outer felt of interior protection cylinder is wound with wrapping wire.
Oil recovery water control device the most according to claim 1 and 2, it is characterised in that metering hole is the big lower inner diameter of upper inner diameter Little stepped hole, fixedly mounts current limiting cylinder on the top of metering hole.
Oil recovery water control device the most according to claim 1 and 2, it is characterised in that the upper outside of base tube is provided with the first ring Shape mounting groove, is installed with the first spacing ring in first annular mounting groove, and the upper inner in top connection is integrally fixed with annular Chuck, the lower end seat of annular chuck is on the outer rim upper surface of the first spacing ring;Upper outside at base tube is provided with the second ring Shape mounting groove, is installed with the second spacing ring in the second annular mounting groove, and the lower end seat of lower seal cylinder is outside the second spacing ring On edge upper surface.
Oil recovery water control device the most according to claim 3, it is characterised in that the upper outside of base tube is provided with first annular Mounting groove, is installed with the first spacing ring in first annular mounting groove, and the upper inner in top connection is integrally fixed with annular snap Platform, the lower end seat of annular chuck is on the outer rim upper surface of the first spacing ring;Upper outside at base tube is provided with the second annular Mounting groove, is installed with the second spacing ring in the second annular mounting groove, and the lower end seat of lower seal cylinder is in the outer rim of the second spacing ring On upper surface.
6. according to the oil recovery water control device described in claim 1 or 2 or 5, it is characterised in that the lower outside of upper snap ring is provided with Mounting groove on outer protection cylinder, the upper inner at lower snap ring is provided with fixture block mounting groove, is provided with fixture block in fixture block mounting groove, Being provided with mounting groove under outer protection cylinder on the inwall of fixture block mounting groove, the top and bottom of outer protection cylinder are respectively and fixedly installed to With in mounting groove under outer protection cylinder in mounting groove on outer protection cylinder, depend on from inside to outside outside the base tube between fixture block and upper snap ring Secondary it is installed with interior protection cylinder, inner filter screen, supporting network, outer filter;Or/and, there is external screw thread or interior on the top of box cupling Screw thread, has external screw thread or female thread in the lower end of base tube.
Oil recovery water control device the most according to claim 3, it is characterised in that the lower outside of upper snap ring is provided with outer protection Mounting groove on cylinder, the upper inner at lower snap ring is provided with fixture block mounting groove, is provided with fixture block, at fixture block in fixture block mounting groove Being provided with mounting groove under outer protection cylinder on the inwall of mounting groove, the top and bottom of outer protection cylinder are respectively and fixedly installed to outer protection With in mounting groove under outer protection cylinder in mounting groove on cylinder, fix the most successively outside the base tube between fixture block and upper snap ring Interior protection cylinder, inner filter screen, supporting network, outer filter are installed;Or/and, there are external screw thread or female thread on the top of box cupling, There are external screw thread or female thread in the lower end of base tube.
Oil recovery water control device the most according to claim 4, it is characterised in that the lower outside of upper snap ring is provided with outer protection Mounting groove on cylinder, the upper inner at lower snap ring is provided with fixture block mounting groove, is provided with fixture block, at fixture block in fixture block mounting groove Being provided with mounting groove under outer protection cylinder on the inwall of mounting groove, the top and bottom of outer protection cylinder are respectively and fixedly installed to outer protection With in mounting groove under outer protection cylinder in mounting groove on cylinder, fix the most successively outside the base tube between fixture block and upper snap ring Interior protection cylinder, inner filter screen, supporting network, outer filter are installed;Or/and, there are external screw thread or female thread on the top of box cupling, There are external screw thread or female thread in the lower end of base tube.
9. according to the oil recovery water control device described in claim 1 or 2 or 5 or 7 or 8, it is characterised in that box cupling and base tube pass through spiral shell Stricture of vagina is fixedly installed togather, and top connection and upper seal bore are threadably secured and are installed together, and top connection and upper seal bore pass through Trip bolt is fixedly installed togather;Or/and, sealing ring is installed between upper seal bore and base tube, at upper seal bore with outer Sealing ring is installed between Tong, between lower seal cylinder and base tube, sealing ring is installed, install between lower seal cylinder and urceolus There is sealing ring.
Oil recovery water control device the most according to claim 3, it is characterised in that box cupling and base tube are threadably secured and are arranged on Together, top connection and upper seal bore are threadably secured and are installed together, and top connection and upper seal bore are fixed by trip bolt It is installed together;Or/and, sealing ring is installed between upper seal bore and base tube, is provided with between upper seal bore and urceolus Sealing ring, is provided with sealing ring between lower seal cylinder and base tube, is provided with sealing ring between lower seal cylinder and urceolus.
11. oil recovery water control devices according to claim 4, it is characterised in that box cupling and base tube are threadably secured and are arranged on Together, top connection and upper seal bore are threadably secured and are installed together, and top connection and upper seal bore are fixed by trip bolt It is installed together;Or/and, sealing ring is installed between upper seal bore and base tube, is provided with between upper seal bore and urceolus Sealing ring, is provided with sealing ring between lower seal cylinder and base tube, is provided with sealing ring between lower seal cylinder and urceolus.
12. oil recovery water control devices according to claim 6, it is characterised in that box cupling and base tube are threadably secured and are arranged on Together, top connection and upper seal bore are threadably secured and are installed together, and top connection and upper seal bore are fixed by trip bolt It is installed together;Or/and, sealing ring is installed between upper seal bore and base tube, is provided with between upper seal bore and urceolus Sealing ring, is provided with sealing ring between lower seal cylinder and base tube, is provided with sealing ring between lower seal cylinder and urceolus.
CN201410586060.6A 2014-10-28 2014-10-28 Oil recovery water control device Active CN104295272B (en)

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105569617B (en) * 2015-11-19 2018-07-06 中国石油集团西部钻探工程有限公司 Switching regulator oil recovery water control device

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CN201771481U (en) * 2010-08-23 2011-03-23 中国石油集团西部钻探工程有限公司 Sieve tube water control device
CN202325434U (en) * 2011-09-15 2012-07-11 西南石油大学 Closable balancing sieve tube for horizontal wells and closing tool for closable balancing sieve tube
CN204186354U (en) * 2014-10-28 2015-03-04 中国石油集团西部钻探工程有限公司 Oil recovery water control device

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Publication number Priority date Publication date Assignee Title
CN1776189A (en) * 2005-11-28 2006-05-24 易会安 Sand-proof screen tube
CN201318155Y (en) * 2008-12-10 2009-09-30 安东石油技术(集团)有限公司 High-effective current control sieve tube
CN201771481U (en) * 2010-08-23 2011-03-23 中国石油集团西部钻探工程有限公司 Sieve tube water control device
CN202325434U (en) * 2011-09-15 2012-07-11 西南石油大学 Closable balancing sieve tube for horizontal wells and closing tool for closable balancing sieve tube
CN204186354U (en) * 2014-10-28 2015-03-04 中国石油集团西部钻探工程有限公司 Oil recovery water control device

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