CN207080207U - Oil field separates adopts technology tubular column - Google Patents

Oil field separates adopts technology tubular column Download PDF

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Publication number
CN207080207U
CN207080207U CN201720971190.0U CN201720971190U CN207080207U CN 207080207 U CN207080207 U CN 207080207U CN 201720971190 U CN201720971190 U CN 201720971190U CN 207080207 U CN207080207 U CN 207080207U
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China
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oil
packing element
pipe
packer
fixed seat
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刘江波
王尚卫
王效明
张雄涛
白小佩
胡相君
李旭梅
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Petrochina Co Ltd
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Petrochina Co Ltd
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  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

Abstract

The utility model provides an oil field isolation production process pipe column, which comprises an oil pipe oil pump tail pipe dead plug which is sequentially connected from top to bottom, wherein the oil pipe and the oil pump are connected with a second long rubber sleeve packer, and a blowout prevention oil drain device and an eye pipe are sequentially connected between the oil pump and the tail pipe from top to bottom; the packer in the process pipe column can be designed to be large in drift diameter due to the fact that the expansion principle is adopted, the packer in the process can be designed on a pump and under the pump, the process requirements of two modes of top-mining and bottom-mining can be met, the design convention of the packer in the existing separation mining process is broken, the long rubber sleeve sealing surface after setting is adopted to anchor with the friction force of a sleeve, slips which easily cause the risk of blocking a drill when deblocking are removed, the potential safety hazard is eliminated from the process source, and the risk of seal-knowing and fishing is reduced.

Description

A kind of oil field is every excavating technology tubing string
The application is application number " 2016214255227 ", and on December 23 2016 applying date, application is entitled " a kind of oily Field is every excavating technology tubing string " utility model patent divisional application.
Technical field
Oil field be the utility model is related to every adopting technical field, and in particular to one kind is applied to cased hole completion and reservoir top goes out The oil field of water and the run-down place's water outlet of sleeve pipe is every excavating technology tubing string.
Background technology
With the continuity of oil field development time, down-hole casing is broken because set occur successively in the reasons such as corrosion, causes stratum and oil Layer UNICOM, oil field normally exploitation or even pollution stratum water source welding are have impact on, has added up to surpass 20,000 muzzles to current petrochina Broken well.There are casing patching, chemical plugging, secondary well cementation, packer every adopting for covering the more common technique of broken well, wherein insulating Device is every excavating technology is simple, convenient construction, cost is low accounts for covering brokenly more than the 80% of well improvement.Currently used for every the packer master adopted There are two kinds, one is traditional Y111, Y211, Y341 etc. conventional every adopting packer, and its potted component is sat using compression Envelope compression travel is short, the smaller packing effect of compression is poor;Secondly be the long-life such as Y141, Y453, Y445 every adopting packer, it is such Packer needs the supporting special leading tripping in of setting tool to be set, after then tripping in flow string band intubation is docked just , it is necessary to carry out brill mill using specific purpose tool when rising, complicated construction technique, cost are high for often production.
Broken well (upper strata sleeve pipe run-down or upper strata water outlet) is covered for oil field generally to carry out every adopting every excavating technology using packer, Existing patent family product such as Water-isolation oil production packer ZL200520141928.8 etc., its potted component are sat using compression The longer positioning hydraulic cavities of envelope indoor design cause that sealing unit compression travel is short, the smaller packing effect of compression is poor;Packing Aided design unidirectional self-lock mechanism (being locked with self-fastening button), corresponding solution sealing mechanism etc. inside device, by oil jacket annular space space Limit such packer often body dimension relatively thin deblocking when easy-to-draw dropout or break moreover, self-locking mechanism after long-term work simultaneously Unblock difficulty itself adds salvaging difficulty;Packing is set using what shaft bottom support can not realize optional position, for artificial well Bottom is apart from oil well of the liquid level distance more than more than 20m and the well of artificial bottom of a well operating mode poor (there are settling sand or small falling object in shaft bottom) It is inapplicable.Therefore, need badly and develop a kind of novel oilfield every excavating technology.
The content of the invention
The purpose of this utility model is to provide a kind of oil field every excavating technology tubing string, and the process pipe string is first every adopting construction In employ potted component and set without constraint expanding, and friction anchor is carried out using the long sealing surface for setting afterwards with casing-contact It is fixed, the design of no anchor packer is realized, is eliminated from technique source every the potential safety hazard for adopting tubing string bit freezing, is realized one time Tubing string is completed set, produce, and does not influence normally to recover the oil during packing, has compared with conventional Water-isolation oil production packer longer Effectively packing face, and upper lifting pipe post is that can be achieved to unseal the oil field salvaged every excavating technology tubing string.
Technical scheme is as follows used by the utility model:
A kind of oil field is every excavating technology tubing string, including the tube oil pump tail pipe being sequentially connected from top to bottom is extremely stifled, described Oil pipe and oil well pump are connected with the second long packing element packer, are connected with blowout prevention draining between oil well pump and tail pipe in turn from top to bottom Device and eye pipe.
The second described long packing element packer comprises at least top connection, central tube, adapter sleeve, connector, piston switch, bullet Spring abutment set, intermediate rubber cartridge module, slip cap and lower contact, the upper end of described central tube have been connected through a screw thread top connection, in The lower end of heart pipe has been connected through a screw thread lower contact, and adapter sleeve, connector, spring base are socketed with successively from top to bottom on central tube Set, intermediate rubber cartridge module and slip cap, the upper end of adapter sleeve are connected by unsealing shear pin with top connection, the lower end of adapter sleeve and company Upper end of joint periphery connects, and connector lower end inner headed face is connected with piston switch, connector lower end periphery and spring base The upper end inner headed face of set is threadedly coupled, and vulcanizing on described piston switch has Rubber cap-like outer cover for closure, and the inside of piston switch is equipped with sealing Circle, is clamped with back-moving spring between piston switch and spring socket sleeve, the lower end of spring socket sleeve is connected with intermediate rubber cartridge module upper end, The lower end of intermediate rubber cartridge module is connected with slip cap.
Described intermediate rubber cartridge module includes upper jacket, upper packing element fixed seat, sets packing element, lower jacket and lower rubber cylinder and fix Seat, the upper end of described upper jacket are threadedly coupled with spring socket sleeve, and the lower end of upper jacket is threadedly coupled with upper packing element fixed seat, on Vulcanization, which is fixed with, between packing element fixed seat and lower rubber cylinder fixed seat sets packing element, and steel belt framework, steel band bone are set with sealing cylinder The outer round surface vulcanization of frame is fixed with cartridge, and the periphery of lower rubber cylinder fixed seat and the upper end of lower jacket connect, lower jacket Lower end be threadedly coupled with slip cap, the interior circular groove of slip cap is built with sealing ring.
Described oil pipe is directly connected to the second long packing element packer, is connected again with oil well pump after being spaced some oil pipes.
Described tail pipe is generally 3~4 oil pipes.
The beneficial effects of the utility model are as follows:
1st, the utility model is first every using the packer that sets of potted component expanding in excavating technology, and using long Packing element forms big section and effectively insulates face, and on the premise of realizing that one-trip string is completed to set, produce, envelope greatly improved It is divided into power;
2nd, the packer in the technique without any position constraint there is longer compression travel can obtain larger compression ratio, It is enough to ensure that sealing unit fully sets and produces long effective contact seal section, good sealing effect with sleeve pipe;
3rd, the packer in the technique controls locking, the gas pressure relief slot on central tube to control deblocking using piston switch, Design difficulty of processing is greatly reduced on the premise of realizing electrodeless differential self-locking, while ensure that packer bulk strength, is dropped Accident rate is salvaged in low whole process pipe string later stage deblocking;
4th, the technique is supported and set without shaft bottom and do not influenceed by casing coupling, and the seat of optional position in pit shaft can be achieved Envelope, deblocking, pit shaft strong adaptability;
5th, the packer in the technique is simple as a result of extension Principle internal structure, therefore may be designed as big orifice, Packer in technique can be designed on pump and can designed under pump, can be met every above adopting down and upper two ways is adopted under Technological requirement, i.e. the utility model process pipe string can be designed as (from top to bottom):Oil pipe+long packing element packer (needs to remove Internal steel ball, setting shear pin, ball seat)+oil pipe some+oil well pump+blowout control drip+eye pipe+tail pipes+is dead stifled;It can also set It is calculated as (from top to bottom):Oil pipe+oil well pump+overcurrent-overvoltage standing valve+oil pipe is some+is internally provided with steel ball, sets shear pin, ball Long packing element packer+eye pipe+tail pipe of seat+dead stifled;
6th, it is normal every the design of the packer " sealing unit+slips " designed in excavating technology to have broken early stage first for the technique Rule, employ packing element sealing surface long after setting and carry out grappling with sleeve friction power, bit freezing wind is easily caused when eliminating deblocking The slips of danger, potential safety hazard is eliminated from technique source, is significantly reduced deblocking and is salvaged risk, while reduces design processing Difficulty, simplify working procedure, improve efficiency of construction.
Brief description of the drawings
Fig. 1 is a kind of structural representation of oil field every excavating technology tubing string;
Fig. 2 is the structural representation of long packing element packer.
Description of reference numerals
1- oil pipes, 2- oil well pumps, 3- blowout control drips, the long packing element packers of 4.2- second, 5- eyes pipe, 6- tail pipes, 7- are dead Stifled, 401- top connections, 402- central tubes, 403- deblockings shear pin, 404- adapter sleeves, 405- connectors, 406-O types circle, 407- envelopes The upper packing element fixed seat of chewing-gum set, 408- piston switch, 409- back-moving springs, 410- spring socket sleeves, 411- upper jackets, 412-, 413- sets packing element, 414- steel belt frameworks, 415- cartridges, 416- lower jackets, 417- lower rubber cylinders fixed seat, 418- and slided Set, 419- sealing rings, 420- lower contacts.
Explanation is further explained to the utility model below in conjunction with the accompanying drawings:
Embodiment
Embodiment 1:
As shown in figure 1, a kind of oil field is every excavating technology tubing string, including the tail pipe of 1 oil well pump of oil pipe 2 being sequentially connected from top to bottom 6 dead stifled 7, described oil pipe 1 and oil well pump 2 are connected with the second long packing element packer 4.2, between oil well pump 2 and tail pipe 6 from upper and Under be connected with blowout control drip 3 and eye pipe 5 in turn.
, only need to be by this packer with being connected in oil extraction in oil field tubing string during construction, its tubing string may be designed as (from well head extremely Underground):Oil pipe 1+ the second long packing element packer 4.2+ oil pipes are some+and oil well pump 2+ blowout control drip 3+ eye pipe 5+ tail pipes 6+ is extremely stifled 7, the design that the technique has broken the existing packer " sealing unit+slips " every in excavating technology design is conventional, employs and sets Long packing element sealing surface carries out grappling with sleeve friction power afterwards, the slips of bit freezing risk is easily caused when eliminating deblocking, from work Skill source eliminates potential safety hazard, significantly reduces deblocking and salvages risk, while reduces design difficulty of processing, simplifies and apply Work process, improve efficiency of construction.
Embodiment 2:
On the basis of embodiment 1, as shown in Fig. 2 the second described long packing element packer 4.2 comprises at least top connection 401st, central tube 402, adapter sleeve 404, connector 405, piston switch 408, spring socket sleeve 410, intermediate rubber cartridge module, slip cap 418 and lower contact 420, the upper end of described central tube 402 be connected through a screw thread top connection 401, the lower end of central tube 402 leads to Cross and be threaded with lower contact 420, be socketed with adapter sleeve 404, connector 405, spring base on central tube 402 successively from top to bottom Set 410, intermediate rubber cartridge module and slip cap 418, the upper end of adapter sleeve 404 are connected by unsealing shear pin 403 with top connection 401, The lower end of adapter sleeve 404 is connected with the upper end periphery of connector 405, and the lower end inner headed face of connector 405 is connected with piston switch 408 Connect, the lower end periphery of connector 405 is threadedly coupled with the upper end inner headed face of spring socket sleeve 410, sulphur on described piston switch 408 Change has Rubber cap-like outer cover for closure 407, and the inside of piston switch 408 is equipped with sealing ring, clamped between piston switch 408 and spring socket sleeve 410 There is back-moving spring 409, the lower end of spring socket sleeve 410 is connected with intermediate rubber cartridge module upper end, the lower end of intermediate rubber cartridge module and cunning Dynamic set 418 is connected;Described intermediate rubber cartridge module includes upper jacket 411, upper packing element fixed seat 412, sets packing element 413, lower shield Set 416 and lower rubber cylinder fixed seat 417, the upper end of described upper jacket 411 are threadedly coupled with spring socket sleeve 410, upper jacket 411 Lower end is threadedly coupled with upper packing element fixed seat 412, is vulcanized between upper packing element fixed seat 412 and lower rubber cylinder fixed seat 417 and is fixed with Packing element 413 is set, steel belt framework 414 is set with sealing cylinder 413, the outer round surface vulcanization of steel belt framework 414 is fixed with sealing Packing element 415, the upper end of the cylindrical and lower jacket 416 of lower rubber cylinder fixed seat 417 are connected, lower end and the slip cap 418 of lower jacket 416 Threaded connection, the interior circular groove of slip cap 418 is built with sealing ring 419.
The assembling process of long packing element packer described in the utility model is:
First adapter sleeve 404 is set with from the top of central tube 402, then top connection 401 be threadedly coupled with central tube 402, Adapter sleeve 404 align with screwing in deblocking shear pin 403 behind the shear pin hole of top connection 401;O-ring 406 is first loaded into connector 405 Interior groove, then connector 405 is set with from the bottom of central tube 402 again and is threadedly coupled with adapter sleeve 404;Rubber cap-like outer cover for closure 407 Cure on piston switch 408, sealing ring is first loaded onto inside piston switch 408 and then is set with from the bottom of central tube 402, it is stagnant Afterwards again successively from the bottom of central tube 402 suit back-moving spring 409, spring socket sleeve 401, and by spring socket sleeve 401 and connector 405 Threaded connection, now complete upper part installation.
First by steel belt framework 414 (typically about 100 or so) in sequence one by one in cylindric frock (with setting packing element 413 grade external diameters) cylindrical place arranges the binding of blend rubber bar, then welded at both ends;It is (not cold that packing element 413 will be set But) then 414 sets of steel belt framework being welded is loaded and sat in upper packing element fixed seat 412 and lower rubber cylinder fixed seat 417 by vulcanization Sealing cylinder 413, finally again respectively by upper jacket 411 and upper packing element fixed seat 412, the lower jacket 416 and spiral shell of lower rubber cylinder fixed seat 417 Line connects;Wait, which is set after packing element 413 cools down, again vulcanizes cartridge 415 in position corresponding to the outer round surface of steel belt framework 414 Put, now complete the installation of intermediate rubber cartridge module.
Load in the external screw thread root of spring socket sleeve 401 after sealing ring again by mounted packing element component under central tube 402 Portion is set with, and upper jacket 411 is threadedly coupled with spring socket sleeve 401;First load sealing ring in the interior circular groove of slip cap 418 419th, external screw thread root loads sealing ring, is then set with from the bottom of central tube 402 and is threadedly coupled with lower jacket 416 again;Finally Lower contact 420 is threadedly coupled with central tube 402 and completes all installation processes.
The packer that second long packing element packer 4.2 described in the utility model is set using potted component expanding, and Big section is formed using long packing element and effectively insulates face, on the premise of realizing that one-trip string is completed to set, produce, significantly Improve packing success rate;And without any position constraint to there is longer compression travel can obtain larger for the packer in the technique Compression ratio, it is sufficient to ensure that sealing unit fully sets and produces long effective contact seal section, good sealing effect with sleeve pipe.
Embodiment 3:
Second long packing element packer 4.2 described in the utility model controls locking (when oil pipe pressure using piston switch 408 Piston switch 408 is opened when power is more than 5MPa), the gas pressure relief slot control deblocking on central tube, it is internal without positioning hydraulic cavities, from lock machine Structure and solution sealing mechanism etc., greatly reduce design difficulty of processing on the premise of electrodeless differential self-locking is realized, ensure that simultaneously Packer bulk strength, reduce later stage deblocking and salvage accident rate.
Packer described in the utility model is supported and set without shaft bottom not to be influenceed by casing coupling, and pit shaft can be achieved Interior optional position sets, unsealed, pit shaft strong adaptability;The packer has broken that " sealing is single every adopting class packer first simultaneously The design of member+slips " is conventional, employs packing element sealing surface (can reach more than 1m) long after setting and carries out anchor with sleeve friction power It is fixed, the slips of bit freezing risk is easily caused when eliminating deblocking, potential safety hazard is eliminated from design source, greatly reduces understanding Envelope salvages risk, simplifies working procedure, improves efficiency of construction.
Embodiment 4:
On the basis of embodiment 1, oil field described in the utility model may be designed as (from top to bottom) every excavating technology tubing string: Oil pipe 1+ the second long packing element packer 4.2+ oil pipes are some+oil well pump 2+ blowout control drip 3+ eye pipe 5+ tail pipes 6+ extremely stifled 7;According to The run-down position of sleeve pipe and can set packer effectively set section and calculate and decide tubing length, it is ensured that the second long packing element packer 4.2 set in specified location.Described oil pipe 1 is directly connected to the second long packing element packer 4.2, be spaced after some oil pipes again with Oil well pump 2 connects, and described tail pipe 6 is generally 3~4 oil pipes.
The operation process of the process pipe string is following (with 51/2The set of 〞 oil pipe completions is broken exemplified by well construction):
1st, connection and tripping in process pipe string
Carry out engineering log first, determine the run-down position of sleeve pipe and can set packer effectively set section, then calculate And decide tubing length, it is ensured that the second long packing element packer 4.2 is set in specified location.Then 118mm gauguste cutter driftings are used Below to packer set position at 20m~30m, by the connection of accompanying drawing 1 and tripping in process pipe string is to design attitude.
2nd, set packer
Connection pump truck is suppressed out of oil pipe, when pressurization reaches 5MPa, the piston switch in the second long packing element packer 4.2 408 promote compression reseting spring 409 to move downward by hydraulic coupling, while Rubber cap-like outer cover for closure 407 also leaves taper with piston switch 408 Hole slot, liquid pass sequentially through piston switch 408 and entered with the gap of spring socket sleeve 410 and spring socket sleeve 410 with the gap of central tube 402 Intermediate rubber cartridge module, cause to set packing element 413, steel belt framework 414, cartridge 415 bulging together, then drive lower jacket 416th, lower rubber cylinder fixed seat 417, slip cap 418 constantly sliding upwards;With pressure to gradually rise cartridge 415 constantly swollen It is swollen to be finally close to internal surface of sleeve pipe, complete to set when pressure reaches 10MPa;
3rd, it is normal to recover the oil
It can start normally to recover the oil after installation production wellhead and oil pumper, the oil of oil reservoir enters the second of the design through oil pipe Long packing element packer 4.2 is simultaneously produced by oil well pump 2;
4th, pump or salvaging are examined
When needing to examine pump or salvage, oil pumper and production wellhead are laid down, acts sucker rod, then above carries flow string and first cut Disconnected long packing element packer 4 unseals shear pin 403, then proceedes to propose now top connection 401, central tube 402 constantly moves up, when The bottom gas pressure relief slot of central tube 402 passes through intermediate rubber cartridge module internal pressure after 418 times step endoporus of sealing ring 419 and entrance slip cap Laid down, set packing element 413, steel belt framework 414, cartridge 415 and bounce back together, when the outer surface of upper step of central tube 402 When operation is at the interior step of adapter sleeve 404, drive adapter sleeve 404, connector 405, spring socket sleeve 410, back-moving spring 409, Piston switch 408, Rubber cap-like outer cover for closure 407, upper jacket 411, upper packing element fixed seat 412, set packing element 413, be steel belt framework 414, close Sealing cylinder 415, lower jacket 416, lower rubber cylinder fixed seat 417, slip cap 418 are up together, realize deblocking packer overall process, The design long packing element packer 4.1 is risen with whole process pipe string, completes inspection pump or fishing.
Embodiment 5:
On the basis of above-described embodiment, oil field described in the utility model may be designed as every excavating technology tubing string (from upper and Under):Oil pipe 1+ the second long packing element packer 4.2+ oil pipes are some+oil well pump 2+ blowout control drip 3+ eye pipe 5+ tail pipes 6+ extremely stifled 7, According to the run-down position of sleeve pipe and can set packer effectively set section and calculate and decide tubing length, it is ensured that the second long packing element type envelope Set every device 4.2 in specified location.Described oil pipe 1 is directly connected to the second long packing element packer 4.2, after being spaced some oil pipes It is connected again with oil well pump 2.
The second described long packing element packer 4.2 is designed in the top of oil well pump 2, can meet that the technique on being adopted under will Ask.
The utility model can also by the steel ball being internally provided with, set shear pin, ball seat long packing element packer design exist The lower section of oil well pump 2, i.e. oil field are also designed to (from top to bottom) every excavating technology tubing string:Oil pipe 1+ oil well pump 2+ overcurrent-overvoltages are consolidated Determine steel ball that valve+oil pipe is some+is internally provided with, set long packing element packer+eye pipe 5+ tail pipes 6+ extremely stifled 7 of shear pin, ball seat, To meet the technological requirement under above adopting.

Claims (5)

1. a kind of oil field is every excavating technology tubing string, including the oil pipe (1), oil well pump (2), tail pipe (6), dead being sequentially connected from top to bottom Stifled (7), it is characterised in that:Described oil pipe (1) and oil well pump (2) is connected with the second long packing element packer (4.2), oil well pump (2) blowout control drip (3) and eye pipe (5) are connected with turn from top to bottom between tail pipe (6).
2. a kind of oil field according to claim 1 is every excavating technology tubing string, it is characterised in that:Described the second long packing element type packing Device (4.2) comprise at least top connection (401), central tube (402), adapter sleeve (404), connector (405), piston switch (408), Spring socket sleeve (410), intermediate rubber cartridge module, slip cap (418) and lower contact (420), the upper end of described central tube (402) lead to Cross and be threaded with top connection (401), the lower end of central tube (402) has been connected through a screw thread lower contact (420), central tube (402) be socketed with successively from top to bottom on adapter sleeve (404), connector (405), spring socket sleeve (410), intermediate rubber cartridge module and Slip cap (418), the upper end of adapter sleeve (404) are connected by unsealing shear pin (403) with top connection (401), adapter sleeve (404) Lower end is connected with connector (405) upper end periphery, and connector (405) lower end inner headed face is connected with piston switch (408), even Joint (405) lower end periphery is threadedly coupled with the upper end inner headed face of spring socket sleeve (410), on described piston switch (408) Vulcanization has Rubber cap-like outer cover for closure (407), and the inside of piston switch (408) is equipped with sealing ring, piston switch (408) and spring socket sleeve (410) back-moving spring (409) is clamped between, the lower end of spring socket sleeve (410) is connected with intermediate rubber cartridge module upper end, intermediate rubber The lower end of cartridge module is connected with slip cap (418).
3. a kind of oil field according to claim 2 is every excavating technology tubing string, it is characterised in that:Described intermediate rubber cartridge module bag Include upper jacket (411), upper packing element fixed seat (412), set packing element (413), lower jacket (416) and lower rubber cylinder fixed seat (417), The upper end of described upper jacket (411) is threadedly coupled with spring socket sleeve (410), and lower end and the upper packing element of upper jacket (411) are fixed Seat (412) threaded connection, vulcanization, which is fixed with, between upper packing element fixed seat (412) and lower rubber cylinder fixed seat (417) sets packing element (413) steel belt framework (414), is set with sealing cylinder (413), the outer round surface vulcanization of steel belt framework (414) is fixed with sealing Packing element (415), the upper end of the cylindrical and lower jacket (416) of lower rubber cylinder fixed seat (417) are connected, the lower end of lower jacket (416) with Slip cap (418) is threadedly coupled, and the interior circular groove of slip cap (418) is built with sealing ring (419).
4. a kind of oil field according to claim 1 is every excavating technology tubing string, it is characterised in that:Described oil pipe (1) and second Long packing element packer (4.2) is directly connected to, and is spaced after some oil pipes and is connected again with oil well pump (2).
5. a kind of oil field according to claim 1 is every excavating technology tubing string, it is characterised in that:Described tail pipe (6) is generally 3 ~4 oil pipes.
CN201720971190.0U 2016-12-23 2016-12-23 Oil field separates adopts technology tubular column Active CN207080207U (en)

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CN201621425522.7U CN206693997U (en) 2016-12-23 2016-12-23 Oil field separates adopts technology tubular column

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106761577A (en) * 2016-12-23 2017-05-31 中国石油天然气股份有限公司 Oil field separates adopts technology tubular column
CN109944568A (en) * 2019-04-01 2019-06-28 华鼎鸿基石油工程技术(北京)有限公司 One kind is every adopting packer and every adopting construction method
CN110847848A (en) * 2019-12-12 2020-02-28 辽宁新华仪器有限公司 Full latus rectum scale control shutoff tubular column instrument of motor-pumped well
CN111577179A (en) * 2020-06-05 2020-08-25 中国石油化工股份有限公司 Movable bottom plug

Families Citing this family (3)

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Publication number Priority date Publication date Assignee Title
CN109267987B (en) * 2018-11-08 2024-09-13 南京鼎峰科技有限公司 Pressure guiding sand ejector and double-sealing single-clamping fracturing string
CN110630210B (en) * 2019-10-16 2023-12-01 中国石油天然气集团有限公司 Leakage-proof plugging tool for yellow soil layer and using method thereof
CN113047805B (en) * 2021-06-01 2022-11-25 盘锦恒奥瑞佳实业有限公司 Self-sealing type oil field packer for oil field exploitation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106761577A (en) * 2016-12-23 2017-05-31 中国石油天然气股份有限公司 Oil field separates adopts technology tubular column
CN109944568A (en) * 2019-04-01 2019-06-28 华鼎鸿基石油工程技术(北京)有限公司 One kind is every adopting packer and every adopting construction method
CN110847848A (en) * 2019-12-12 2020-02-28 辽宁新华仪器有限公司 Full latus rectum scale control shutoff tubular column instrument of motor-pumped well
CN111577179A (en) * 2020-06-05 2020-08-25 中国石油化工股份有限公司 Movable bottom plug

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