CN106150408B - A kind of open coiled tubing injector - Google Patents

A kind of open coiled tubing injector Download PDF

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Publication number
CN106150408B
CN106150408B CN201610660366.0A CN201610660366A CN106150408B CN 106150408 B CN106150408 B CN 106150408B CN 201610660366 A CN201610660366 A CN 201610660366A CN 106150408 B CN106150408 B CN 106150408B
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China
Prior art keywords
clamping
support frame
coiled tubing
tensioning
chain
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CN201610660366.0A
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CN106150408A (en
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不公告发明人
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Xining Ke Jin Industrial Design Co Ltd
Yang Jieru
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Priority to CN201410375931.XA priority Critical patent/CN104165032B/en
Priority to CN201610660366.0A priority patent/CN106150408B/en
Publication of CN106150408A publication Critical patent/CN106150408A/en
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/22Handling reeled pipe or rod units, e.g. flexible drilling pipes

Abstract

The invention discloses a kind of open coiled tubing injectors, its technical solution is: outer support frame undertakes the load of weight and down-hole string when driving device works normally, when driving device needs to be detached from the coiled tubing to work in well, outer support frame provides unloading condition for driving device, completes the disengaging or clamping of the coiled tubing in " driving device " and well in work.Beneficial effect is: realizing coiled tubing while for delivered downhole fluid, open coiled tubing injector can be detached from the coiled tubing in work from any position in the middle part of coiled tubing, utilization rate is not only increased in this way, and greatly facilitates the replacement and repairing of out of order open coiled tubing injector in use.

Description

A kind of open coiled tubing injector
Technical field
The present invention relates to a kind of petroleum industry extracting device of oil and method, in particular to a kind of open coiled tubing injection Device.
Background technique
Currently, existing coiled tubing in oil field development using very extensive, oil well sand washing, gas lift liquid drainage induced flow, The fields such as low-permeability oil deposit pressure break, the exhaust gas production of gas well, workover treatment, drilling well show can Operating Pressure, operating efficiency is high, The advantages such as mechanization degree is high, safety is good, are described as omnipotent working rig by oil field people, exploitation and underground gas with coal bed gas Change the development of coal-mining technique, existing continuous oil pipe device is not able to satisfy the requirement of novel technique, is mainly manifested in: existing at present The chain of the well head running and pulling device of some coiled tubings — that is, the load support frame of coiled tubing injector and clamping coiled tubing It is all enclosed construction, coiled tubing can only be longitudinally therethrough formula from the upper end of injector or lower end and be pierced by, the end of coiled tubing Position in addition can not laterally deviate from out of injector.Some long-time service coiled tubings are allowed in this way injects fluid in underground Well injector can not be removed from the coiled tubing for be chronically at working condition, injector is chronically at " idle " shape in well head The coiled tubings such as state utilization rate of equipment and installations is low, equipment occupies are deteriorated in well operational economy for a long time, and technique popularization and application receive limit System.
Summary of the invention
The purpose of the present invention is to drawbacks described above of the existing technology, and providing one kind can remove or load at any time Open coiled tubing injector, not only increase utilization rate, and greatly facilitate out of order injector in use Replacement and repairing.
A kind of open coiled tubing injector that the present invention mentions, including outer support frame (1), inner support frame (2), driving Sprocket wheel (3), drive motor (5), tensioning support wheel (6), clamping hydraulic cylinder (7), clamping contact roller (8), is opened clamping chain (4) Tight hydraulic cylinder (9), Weighing mechanism (10), gooseneck (11), browpiece (12), guy wire (13), it is the outer support frame (1), interior Support frame (2) forms load support frame, and drive sprocket (3), clamping chain (4), driving are equipped on the inner support frame (2) Motor (5), clamping hydraulic cylinder (7), tensioning support wheel (6), clamping contact roller (8), hydraulic tensioning cylinder (9), Weighing mechanism (10) Form the core that coiled tubing can be clamped, coiled tubing is driven to move up and down in well;On the outer support frame (1) It is equipped with gooseneck (11), and is fixed on the top of operation wellhead by browpiece (12) and guy wire (13), carrying coiled tubing drives When the weight and driver of dynamic device work in well coiled tubing load;The outer support frame (1) is open equipped with outer support frame Mouth (D), inner support frame (2) are equipped with inner support frame opening port (B);Two groups of drive motors (5) pass through two sets of drive sprockets (3) respectively Two groups of clamping chain (4) rotations are driven, and are equipped with clamping hydraulic cylinder (7), tensioning support wheel (6), clamping inside clamping chain (4) Contact roller (8) and hydraulic tensioning cylinder (9), the clamping chain (4) are equipped with semi-circular recesses, two sets of clamping chain (4) groups It is combined the circular clamping chain opening port (C) to form clamping coiled tubing.
Above-mentioned inner support frame opening port (B) and clamping chain opening port (C) is relatively, continuous from working in well to facilitate Oil pipe is deviate from or is again introduced into.
Above-mentioned outer support frame opening port (D) be located at gooseneck stretching the back side, with facilitate inner support frame deviate from or again into Enter;Outer support frame (1) is fixed on above well head by browpiece (12) and guy wire (13), for bearing ground coiled pipe device to well head The weight of coiled tubing clamps or is detached from for inner support frame coiled tubing and provides space.
It is respectively equipped with clamping hydraulic cylinder (7) and clamping contact roller (8) on the inside of two groups of clamping chains (4), clamps contact roller (8) outside is contacted with clamping chain (4), and the inside of clamping contact roller (8) is contacted with clamping hydraulic cylinder (7);Two groups of clamping chains Tensioning support wheel (6) and hydraulic tensioning cylinder (9), the outside of the tensioning support wheel (6) and folder are respectively equipped on the outside of item (4) Chain (4) contact is held, the inside of tensioning support wheel (6) is contacted with hydraulic tensioning cylinder (9).
The application method for the open coiled tubing injector that the present invention mentions, comprising the following steps:
When open coiled tubing injector completes that coiled tubing in well is risen or after lower task, needed in well continuously When oil pipe injects fluid or open flow downhole fluid for a long time, the pipe clamping device of wellhead blowout preventor group works, by well coiled tubing it is negative Lotus hangs on pipe clamping device, while adjusting ground coiled pipe device to the tension of coiled tubing between well head gooseneck, makes this section of coiled tubing Weight be added on gooseneck (11), at this point, open coiled tubing injector clamping chain (4) clamping one section of coiled tubing at In free suspended state, the pressure of clamping hydraulic cylinder (7) is released, increases certain pressure, clamping chain to hydraulic tensioning cylinder (9) (4) clamping chain opening port (C) can be opened, and the channel for being detached from clamping chain (4) is conceded to clamped coiled tubing, this When, it is open from the outer support frame of outer support frame (1) that the coiled tubing driving device on inner support frame (2) will be fixed on using external force Mouth (D) pulls out, and just completes the disengaging of the coiled tubing to work in coiled tubing driving device and well;
When, when the coiled tubing of work needs to move up and down again, coiled tubing driving device being first placed in opening in well The opening port edge of formula coiled tubing injector outer support frame (1) releases clamping hydraulic cylinder (7) interior pressure, gives hydraulic tensioning cylinder (9) liquid feeding pressure opens the opening port of clamping chain (4), using inner support frame (2) are pushed outside, makes coiled tubing by interior branch The inner support frame opening port (B) of support (2) enters clamping chain (4), then makes to clamp contact roller to clamping hydraulic cylinder (7) liquid feeding pressure (8) clamping chain (4) are pushed to clamp coiled tubing, unclamping again pipe clamping device makes the load transfer of coiled tubing in well to open company On continuous tubing injector, then, lead to it is hydraulic work at the same time ground coiled pipe device, complete to remove work to coiled tubing in well.
The beneficial effects of the present invention are: in this way in the case where not changing the basic functional principle of injector, pass through change The structural shape of the support frame of injector and clamping chain position realize coiled tubing while for delivered downhole fluid, infuse Enter the coiled tubing that device can be detached from work from any position in the middle part of coiled tubing.Utilization rate is not only increased in this way, and Greatly facilitate the replacement and repairing of out of order injector in use.
Detailed description of the invention
Attached drawing 1 is structural schematic diagram of the invention;
Attached drawing 2 is the sectional view of the line A-A along Fig. 1;
Attached drawing 3 is a kind of structure chart of embodiment of the well head fixed form of outer support frame of the invention;
In upper figure: outer support frame 1, inner support frame 2, drive sprocket 3, clamping chain 4, drive motor 5, tensioning support wheel 6, Clamping hydraulic cylinder 7, clamping contact roller 8, hydraulic tensioning cylinder 9, Weighing mechanism 10, gooseneck 11, browpiece 12, guy wire 13, interior branch Support opening port B, clamping chain opening port C, outer support frame opening port D.
Specific embodiment
In conjunction with attached drawing 1-3, the invention will be further described:
A kind of open coiled tubing injector that the present invention mentions, including outer support frame 1, inner support frame 2, drive sprocket 3, clamping chain 4, drive motor 5, tensioning support wheel 6, clamping hydraulic cylinder 7, clamping contact roller 8, hydraulic tensioning cylinder 9, weigher Structure 10, gooseneck 11, browpiece 12, guy wire 13, the outer support frame 1, inner support frame 2 form load support frame, described Drive sprocket 3, clamping chain 4, drive motor 5, clamping hydraulic cylinder 7, tensioning support wheel 6, clamping pressure are installed on inner support frame 2 Bearing up pulley 8, hydraulic tensioning cylinder 9, Weighing mechanism 10, which are formed, to clamp coiled tubing, driving coiled tubing moves up and down in well Core;Gooseneck 11 is installed, the structure of the gooseneck is the neck of similar goose, upwards outward on the outer support frame 1 A distance is stretched out, and is fixed on the top of operation wellhead by browpiece 12 and guy wire 13, carrying coiled tubing driver When weight and driver work in well coiled tubing load;The outer support frame 1 is equipped with outer support frame opening port D, interior branch Support 2 is equipped with inner support frame opening port B;Two groups of drive motors 5 drive two groups of clamping chains 4 by two sets of drive sprockets 3 respectively Rotation, and clamping hydraulic cylinder 7, tensioning support wheel 6, clamping contact roller 8 and hydraulic tensioning cylinder 9 are equipped with inside clamping chain 4, it is described Clamping chain 4 be equipped with semi-circular recesses, two sets clamping chains 4 be grouped together into clamp coiled tubing circular folder Hold chain opening port C.
Above-mentioned inner support frame opening port B is opposite with clamping chain opening port C, to facilitate from the coiled tubing to work in well Deviate from or is again introduced into.
Above-mentioned outer support frame opening port D be located at gooseneck 11 stretching the back side, with facilitate inner support frame deviate from or again into Enter;Outer support frame 1 is fixed on above well head by browpiece 12 and guy wire 13, continuously oily to well head for bearing ground coiled pipe device The weight of pipe clamps or is detached from for inner support frame coiled tubing and provides space.
The inside of two groups of clamping chains 4 is respectively equipped with clamping hydraulic cylinder 7 and clamping contact roller 8, clamps the outside of contact roller 8 It is contacted with clamping chain 4, the inside of clamping contact roller 8 is contacted with clamping hydraulic cylinder 7;The outside of two groups of clamping chains 4 is set respectively There are tensioning support wheel 6 and hydraulic tensioning cylinder 9, the outside of the tensioning support wheel 6 to contact with clamping chain 4, is tensioned support wheel 6 Inside contacted with hydraulic tensioning cylinder 9.
There are many ways of realization for outer support frame 1: such as weight hanging;Stent-type, Jackstay type etc..The opening port B of inner support frame 2, It can be open type, be also possible to disassembly and assembly structure normally closed type.The opening port B of inner support frame 2, two drive sprockets 3 it Between, and it is parallel with clamping chain 4.
The application method for the open coiled tubing injector that the present invention mentions, including following methods:
When open coiled tubing injector completes that coiled tubing in well is risen or after lower task, needed in well continuously When oil pipe injects fluid or open flow downhole fluid for a long time, the pipe clamping device of wellhead blowout preventor group works, by well coiled tubing it is negative Lotus hangs on pipe clamping device, while adjusting ground coiled pipe device to the tension of coiled tubing between well head gooseneck, makes this section of coiled tubing Weight be added on gooseneck 11, at this point, open coiled tubing injector clamping chain 4 clamping one section of coiled tubing be in from By suspended state, the pressure of clamping hydraulic cylinder 7 is released, increases certain pressure, the clamping chain of clamping chain 4 to hydraulic tensioning cylinder 9 Opening port C can be opened, and the channel for being detached from clamping chain 4 be conceded to clamped coiled tubing, at this point, will fix using external force It pulls out, just completes continuous from the outer support frame opening port D of outer support frame 1 in the coiled tubing driving device on inner support frame 2 In the disengaging of the coiled tubing of work in oil pipe driving device and well;
When, when the coiled tubing of work needs to move up and down again, coiled tubing driving device being first placed in opening in well The opening port edge of formula coiled tubing injector outer support frame 1, releases pressure in clamping hydraulic cylinder 7, gives 9 liquid feeding of hydraulic tensioning cylinder Pressure, opens the opening port of clamping chain 4, using inner support frame 2 is pushed outside, coiled tubing is made to pass through the interior branch of inner support frame 2 Support opening port B enters clamping chain 4, then makes clamping contact roller 8 that clamping chain 4 be pushed to clamp to 7 liquid feeding pressure of clamping hydraulic cylinder Coiled tubing, unclamping again pipe clamping device makes in the load transfer of coiled tubing in well to open coiled tubing injector, then, leads to It is hydraulic to work at the same time ground coiled pipe device, it completes to remove work to coiled tubing in well.

Claims (1)

1. a kind of open coiled tubing injector, it is characterized in that: including outer support frame (1), inner support frame (2), drive sprocket (3), clamping chain (4), drive motor (5), tensioning support wheel (6), clamping hydraulic cylinder (7), clamping contact roller (8), tensioning liquid Cylinder pressure (9), Weighing mechanism (10), gooseneck (11), browpiece (12), guy wire (13), the outer support frame (1), inner support Frame (2) forms load support frame, is equipped with drive sprocket (3), clamping chain (4), drive motor on the inner support frame (2) (5), clamping hydraulic cylinder (7), tensioning support wheel (6), clamping contact roller (8), hydraulic tensioning cylinder (9), Weighing mechanism (10) formation Coiled tubing can be clamped, the core that driving coiled tubing moves up and down in well;It is installed on the outer support frame (1) Have gooseneck (11), and be fixed on the top of operation wellhead by browpiece (12) and guy wire (13), carries coiled tubing driver Weight and driver work when well in coiled tubing load;The outer support frame (1) is equipped with outer support frame opening port (D), inner support frame (2) is equipped with inner support frame opening port (B);Two groups of drive motors (5) pass through two sets of drive sprocket (3) bands respectively Dynamic two groups of clamping chains (4) rotation, and clamping hydraulic cylinder (7), tensioning support wheel (6), clamping pressure are equipped with inside clamping chain (4) Bearing up pulley (8) and hydraulic tensioning cylinder (9), the clamping chain (4) are equipped with semi-circular recesses, two sets of clamping chain (4) combinations The circular clamping chain opening port (C) of clamping coiled tubing is formed together;
Clamping hydraulic cylinder (7) and clamping contact roller (8) are respectively equipped on the inside of two groups of clamping chains (4), clamping contact roller (8) Outside is contacted with clamping chain (4), and the inside of clamping contact roller (8) is contacted with clamping hydraulic cylinder (7);Two groups of clamping chains (4) Outside be respectively equipped with tensioning support wheel (6) and hydraulic tensioning cylinder (9), the outside of the tensioning support wheel (6) and clamping chain Item (4) contact, the inside of tensioning support wheel (6) are contacted with hydraulic tensioning cylinder (9);
The inner support frame opening port (B) and clamping chain opening port (C) relatively, to facilitate from the coiled tubing to work in well Deviate from or is again introduced into;
The outer support frame opening port (D) is located at the back side of gooseneck stretching, to facilitate inner support frame to deviate from or be again introduced into;Outside Support frame (1) is fixed on above well head by browpiece (12) and guy wire (13), continuous to well head for bearing ground coiled pipe device The weight of oil pipe clamps or is detached from for inner support frame coiled tubing and provides space.
CN201610660366.0A 2014-08-01 2014-08-01 A kind of open coiled tubing injector Active CN106150408B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201410375931.XA CN104165032B (en) 2014-08-01 2014-08-01 A kind of open coiled tubing infusion appliance and using method thereof
CN201610660366.0A CN106150408B (en) 2014-08-01 2014-08-01 A kind of open coiled tubing injector

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Application Number Priority Date Filing Date Title
CN201610660366.0A CN106150408B (en) 2014-08-01 2014-08-01 A kind of open coiled tubing injector

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CN106150408B true CN106150408B (en) 2018-12-18

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108708681B (en) * 2015-08-26 2019-09-24 泉州台商投资区春凯机械科技有限公司 The equipment of operation and control continuous oil pipe operation

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Publication number Priority date Publication date Assignee Title
US5309990A (en) * 1991-07-26 1994-05-10 Hydra-Rig, Incorporated Coiled tubing injector
US5775417A (en) * 1997-03-24 1998-07-07 Council; Malcolm N. Coiled tubing handling apparatus
US6173769B1 (en) * 1998-04-30 2001-01-16 Hydra Rig, Inc. Universal carrier for grippers in a coiled tubing injector
CN201297141Y (en) * 2008-11-27 2009-08-26 胜利油田高原石油装备有限责任公司 Floating clamping device for continuous tube transfusion head
CN201650165U (en) * 2010-02-08 2010-11-24 中国石化集团江汉石油管理局第四机械厂 Clamp device of injection head continuous oil pipe
CN102199998A (en) * 2011-06-16 2011-09-28 中国石油天然气股份有限公司 Injection head device of continuous oil pipe
CN203008825U (en) * 2012-11-14 2013-06-19 中国石油天然气集团公司 Injection head support
CN203271638U (en) * 2013-04-03 2013-11-06 中国石油天然气股份有限公司 Tripping equipment of flexible composite oil pipe columns
CN203334990U (en) * 2013-05-07 2013-12-11 艾迪士径向钻井(烟台)有限公司 Injection head device of continuous oil pipe
CN103835672A (en) * 2014-03-04 2014-06-04 北京力源恒通科技有限公司 Wheel-type coiled tubing injection device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204126573U (en) * 2014-08-01 2015-01-28 东营天华石油技术开发有限公司 A kind of open coiled tubing injector

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5309990A (en) * 1991-07-26 1994-05-10 Hydra-Rig, Incorporated Coiled tubing injector
US5775417A (en) * 1997-03-24 1998-07-07 Council; Malcolm N. Coiled tubing handling apparatus
US6173769B1 (en) * 1998-04-30 2001-01-16 Hydra Rig, Inc. Universal carrier for grippers in a coiled tubing injector
CN201297141Y (en) * 2008-11-27 2009-08-26 胜利油田高原石油装备有限责任公司 Floating clamping device for continuous tube transfusion head
CN201650165U (en) * 2010-02-08 2010-11-24 中国石化集团江汉石油管理局第四机械厂 Clamp device of injection head continuous oil pipe
CN102199998A (en) * 2011-06-16 2011-09-28 中国石油天然气股份有限公司 Injection head device of continuous oil pipe
CN203008825U (en) * 2012-11-14 2013-06-19 中国石油天然气集团公司 Injection head support
CN203271638U (en) * 2013-04-03 2013-11-06 中国石油天然气股份有限公司 Tripping equipment of flexible composite oil pipe columns
CN203334990U (en) * 2013-05-07 2013-12-11 艾迪士径向钻井(烟台)有限公司 Injection head device of continuous oil pipe
CN103835672A (en) * 2014-03-04 2014-06-04 北京力源恒通科技有限公司 Wheel-type coiled tubing injection device

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CN106150408A (en) 2016-11-23
CN104165032A (en) 2014-11-26
CN104165032B (en) 2016-09-07

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Patentee before: Taizhou Durun composite new material Co., Ltd