CN104165032A - Open-type coiled tubing injector and using method thereof - Google Patents
Open-type coiled tubing injector and using method thereof Download PDFInfo
- Publication number
- CN104165032A CN104165032A CN201410375931.XA CN201410375931A CN104165032A CN 104165032 A CN104165032 A CN 104165032A CN 201410375931 A CN201410375931 A CN 201410375931A CN 104165032 A CN104165032 A CN 104165032A
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- Prior art keywords
- coiled tubing
- clamping
- support frame
- well
- open
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 238000005303 weighing Methods 0.000 claims abstract description 8
- 244000261422 Lysimachia clethroides Species 0.000 claims description 17
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 230000007774 longterm Effects 0.000 description 2
- 241000272814 Anser sp. Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/22—Handling reeled pipe or rod units, e.g. flexible drilling pipes
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses an open-type coiled tubing injector and a using method thereof. According to the technical scheme, the open-type coiled tubing injector is composed of a continuous driving device comprising an outer supporting frame, an inner supporting frame, driving chain wheels, clamping chains, driving motors, tensioning supporting wheels, clamping hydraulic cylinders, clamping pressing wheels, tensioning hydraulic cylinders and a weighing mechanism; the outer supporting frame bears the weight of the driving device during normal working and loads of an underground tubular column, when the driving device needs to be separated from coiled tubing working in a well, the outer supporting frame provides unloading conditions for the driving device, and separation or clamping of the driving device and the coiled tubing working in the well is completed. The open-type coiled tubing injector and the using method thereof have the advantages that when the coiled tubing conveys fluid in the well, the injector can be separated from the working coiled tubing from any position of the middle of the coiled tubing, the utilization rate is increased, and replacement and maintenance of the injector breaking down in use are facilitated greatly.
Description
Technical field
The present invention relates to a kind of petroleum industry extracting device of oil and method, particularly a kind of open coiled tubing injector and using method thereof.
Background technology
At present, existing coiled tubing is applied very extensive in oil field development, at oil well sand washing, gas lift liquid drainage induced flow, low-permeability oil deposit pressure break, the exhaust gas production of gas well, workover treatment, the fields such as drilling well demonstrate can Operating Pressure, operating efficiency is high, mechanization degree is high, the advantages such as safety is good, by oil field people, be described as omnipotent working rig, exploitation along with coal bed gas, development with underground gasification coal-mining technique, existing continuous oil pipe device can not meet the requirement of novel technique, be mainly manifested in: the well head running and pulling device of current existing coiled tubing-be that the load bracing frame of coiled tubing injector and the chain of clamping coiled tubing are all enclosed constructions, coiled tubing can only pass from the longitudinal through type in upper end or lower end of injector, position beyond the end of coiled tubing cannot laterally be deviate from injector.So just make some long-term coiled tubings that use cannot take off from long-term in running order coiled tubing at the well injector of down-hole injection fluid, injector is at coiled tubings such as well head, hold facilities low in " leaving unused " status devices utilization rate for a long time for a long time in well work economy variation, and technique is applied and is restricted.
Summary of the invention
Object of the present invention is exactly in view of the foregoing defects the prior art has, a kind of open coiled tubing injector and the using method thereof that can take off at any time or load onto is provided, not only improve utilization rate, and greatly facilitated in use replacing and the repairing of out of order injector.
A kind of open coiled tubing injector that the present invention mentions, comprise outer support frame (1), inner support frame (2), drive sprocket (3), clamping chain (4), CD-ROM 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), described outer support frame (1), inner support frame (2) forms load bracing frame, drive sprocket (3) is installed on described inner support frame (2), clamping chain (4), CD-ROM drive motor (5), clamping hydraulic cylinder (7), tensioning support wheel (6), clamping contact roller (8), hydraulic tensioning cylinder (9), Weighing mechanism (10) forms and coiled tubing can be clamped, the core that drives coiled tubing to move up and down in well, gooseneck (11) is installed on described outer support frame (1), and by browpiece (12) and guy wire (13), is fixed on the top of operation wellhead, the load of coiled tubing in well when the weight of carrying coiled tubing driver and drive operation, described outer support frame (1) is provided with outer support frame opening port (D), and inner support frame (2) is provided with inner support frame opening port (B), two groups of CD-ROM drive motors (5) drive two groups of clamping chains (4) rotation by two cover drive sprockets (3) respectively, and clamping chain (4) inside is provided with clamping hydraulic cylinder (7), tensioning support wheel (6), clamping contact roller (8) and hydraulic tensioning cylinder (9), described clamping chain (4) is provided with semi-circular recesses, and two cover clamping chains (4) are combined the circular clamping chain opening port (C) that forms clamping coiled tubing.
Above-mentioned inner support frame opening port (B) is relative with clamping chain opening port (C), to facilitate from deviating from or again enter at the coiled tubing of well work.
Above-mentioned outer support frame opening port (D) is located at the back side that gooseneck stretches out, to facilitate inner support frame deviate from or again enter; Outer support frame (1) is fixed on well head top by browpiece (12) and guy wire (13), for bearing ground coiled pipe device to the weight of well head coiled tubing, for inner support frame clamps or departs from coiled tubing, provides space.
The inner side of two groups of clamping chains (4) is respectively equipped with clamping hydraulic cylinder (7) and clamping contact roller (8), and the outside of clamping contact roller (8) contacts with clamping chain (4), and the inner side of clamping contact roller (8) contacts with clamping hydraulic cylinder (7); The outside of two groups of clamping chains (4) is respectively equipped with tensioning support wheel (6) and hydraulic tensioning cylinder (9), and the outside of described tensioning support wheel (6) contacts with clamping chain (4), and the inner side of tensioning support wheel (6) contacts with hydraulic tensioning cylinder (9).
The using method of the open coiled tubing injector that the present invention mentions, comprises following methods
In open coiled tubing injector completes well coiled tubing rise or under task after, while needing the interior coiled tubing of well to inject for a long time fluid or open flow downhole fluid, the pipe clamping device work of wellhead blowout preventor group, the load of coiled tubing in well is hung on pipe clamping device, adjust ground coiled pipe device to the tension force of coiled tubing between well head gooseneck simultaneously, the weight of this section of coiled tubing is added on gooseneck (11), now, one section of coiled tubing of open coiled tubing injector clamping chain (4) clamping is in free suspended state, release the pressure of clamping hydraulic cylinder (7), increase certain pressure to hydraulic tensioning cylinder (9), the clamping chain opening port (C) of clamping chain (4) can be opened, abdicate the passage that departs from clamping chain (4) to the coiled tubing being held, now, adopt external force that the coiled tubing drive unit being fixed on inner support frame (2) is pulled out from the outer support frame opening port (D) of outer support frame (1), just completed the disengaging of the coiled tubing of work in coiled tubing drive unit and well,
When the coiled tubing of the inherent work of well need to move up and down again, first coiled tubing drive unit is placed in to the opening port edge of open coiled tubing injector outer support frame (1), release clamping hydraulic cylinder (7) internal pressure, add hydraulic pressure to hydraulic tensioning cylinder (9), the opening port of clamping chain (4) is opened, adopt the outer inner support frame (2) of trying hard to recommend, make coiled tubing enter clamping chain (4) through the inner support frame opening port (C) of inner support frame (2), adding hydraulic pressure to clamping hydraulic cylinder (7) makes to clamp contact roller (8) and promotes clamping chain (4) and clamp coiled tubing again, unclamping pipe clamping device makes the load transfer of coiled tubing in well to open coiled tubing injector again, then, logical hydraulic pressure is worked ground coiled pipe device simultaneously, complete the work that removes to coiled tubing in well.
The invention has the beneficial effects as follows: like this in the situation that do not change injector basic functional principle, by change injector bracing frame structural shape and clamp chain position and realized coiled tubing in delivered downhole fluid, the coiled tubing that injector can be from coiled tubing middle part optional position disengaging work.So not only improve utilization rate, and greatly facilitated in use replacing and the repairing of out of order injector.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention;
Accompanying drawing 2 is A-A structure charts of the present invention;
Accompanying drawing 3 is structure charts of a kind of embodiment of the well head fixed form of outer support frame of the present invention;
In upper figure: outer support frame 1, inner support frame 2, drive sprocket 3, clamping chain 4, CD-ROM 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, inner support frame opening port B, clamping chain opening port C, outer support frame opening port D.
The specific embodiment
1-3 by reference to the accompanying drawings, the invention will be further described:
A kind of open coiled tubing injector that the present invention mentions, comprise outer support frame 1, inner support frame 2, drive sprocket 3, clamping chain 4, CD-ROM 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, described outer support frame 1, inner support frame 2 forms load bracing frame, on described inner support frame 2, drive sprocket 3 is installed, clamping chain 4, CD-ROM drive motor 5, clamping hydraulic cylinder 7, tensioning support wheel 6, clamping contact roller 8, hydraulic tensioning cylinder 9, Weighing mechanism 10 forms and coiled tubing can be clamped, the core that drives coiled tubing to move up and down in well, on described outer support frame 1, gooseneck 11 is installed, the structure of described gooseneck is the neck of similar goose, a protruding segment distance makes progress, and by browpiece 12 and guy wire 13, be fixed on the top of operation wellhead, the load of coiled tubing in well when the weight of carrying coiled tubing driver and drive operation, described outer support frame 1 is provided with outer support frame opening port D, and inner support frame 2 is provided with inner support frame opening port B, two groups of CD-ROM drive motors 5 drive 4 rotations of two groups of clamping chains by two cover drive sprockets 3 respectively, and clamping chain 4 inside are provided with clamping hydraulic cylinder 7, tensioning support wheel 6, clamping contact roller 8 and hydraulic tensioning cylinder 9, described clamping chain 4 is provided with semi-circular recesses, and two cover clamping chains 4 are combined the circular clamping chain opening port C that forms clamping coiled tubing.
Above-mentioned inner support frame opening port B is relative with clamping chain opening port C, to facilitate from deviating from or again enter at the coiled tubing of well work.
Above-mentioned outer support frame opening port D is located at the back side that gooseneck 11 stretches out, to facilitate inner support frame deviate from or again enter; Outer support frame 1 is fixed on well head top by browpiece 12 and guy wire 13, for bearing ground coiled pipe device to the weight of well head coiled tubing, for inner support frame clamps or departs from coiled tubing, provides space.
The inner side of two groups of clamping chains 4 is respectively equipped with clamping hydraulic cylinder 7 and clamping contact roller 8, and the outside of clamping contact roller 8 contacts with clamping chain 4, and the inner side of clamping contact roller 8 contacts with clamping hydraulic cylinder 7; The outside of two groups of clamping chains 4 is respectively equipped with tensioning support wheel 6 and hydraulic tensioning cylinder 9, and the outside of described tensioning support wheel 6 contacts with clamping chain 4, and the inner side of tensioning support wheel 6 contacts with hydraulic tensioning cylinder 9.
Outer support frame 1 has multiple way of realization: as heavy hanging; Stent-type, Jackstay type etc.The opening port B of inner support frame 2, can be long open type, can be also disassembly and assembly structure normally closed type.The opening port B of inner support frame 2, between two drive sprockets 3, and parallel with clamping chain 4.
The using method of the open coiled tubing injector that the present invention mentions, comprises following methods:
In open coiled tubing injector completes well coiled tubing rise or under task after, while needing the interior coiled tubing of well to inject for a long time fluid or open flow downhole fluid, the pipe clamping device work of wellhead blowout preventor group, the load of coiled tubing in well is hung on pipe clamping device, adjust ground coiled pipe device to the tension force of coiled tubing between well head gooseneck simultaneously, the weight of this section of coiled tubing is added on gooseneck 11, now, one section of coiled tubing of open coiled tubing injector clamping chain 4 clampings is in free suspended state, release the pressure of clamping hydraulic cylinder 7, increase certain pressure to hydraulic tensioning cylinder 9, the clamping chain opening port C of clamping chain 4 can open, abdicate the passage that departs from clamping chain 4 to the coiled tubing being held, now, adopt external force that the coiled tubing drive unit being fixed on inner support frame 2 is pulled out from the outer support frame opening port D of outer support frame 1, just completed the disengaging of the coiled tubing of the inherent work of coiled tubing drive unit and well,
When the coiled tubing of the inherent work of well need to move up and down again, first coiled tubing drive unit is placed in to the opening port edge of open coiled tubing injector outer support frame 1, release clamping hydraulic cylinder 7 internal pressures, add hydraulic pressure to hydraulic tensioning cylinder 9, the opening port of clamping chain 4 is opened, adopt the outer inner support frame 2 of trying hard to recommend, make coiled tubing enter clamping chain 4 through the inner support frame opening port C of inner support frame 2, adding hydraulic pressure to clamping hydraulic cylinder 7 makes to clamp contact roller 8 and promotes clamping chains 4 and clamp coiled tubing again, unclamping pipe clamping device makes the load transfer of coiled tubing in well to open coiled tubing injector again, then, logical hydraulic pressure is worked ground coiled pipe device simultaneously, complete the work that removes to coiled tubing in well.
Claims (5)
1. an open coiled tubing injector, it is characterized in that: comprise outer support frame (1), inner support frame (2), drive sprocket (3), clamping chain (4), CD-ROM 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), described outer support frame (1), inner support frame (2) forms load bracing frame, drive sprocket (3) is installed on described inner support frame (2), clamping chain (4), CD-ROM drive motor (5), clamping hydraulic cylinder (7), tensioning support wheel (6), clamping contact roller (8), hydraulic tensioning cylinder (9), Weighing mechanism (10) forms and coiled tubing can be clamped, the core that drives coiled tubing to move up and down in well, gooseneck (11) is installed on described outer support frame (1), and by browpiece (12) and guy wire (13), is fixed on the top of operation wellhead, the load of coiled tubing in well when the weight of carrying coiled tubing driver and drive operation, described outer support frame (1) is provided with outer support frame opening port (D), and inner support frame (2) is provided with inner support frame opening port (B), two groups of CD-ROM drive motors (5) drive two groups of clamping chains (4) rotation by two cover drive sprockets (3) respectively, and clamping chain (4) inside is provided with clamping hydraulic cylinder (7), tensioning support wheel (6), clamping contact roller (8) and hydraulic tensioning cylinder (9), described clamping chain (4) is provided with semi-circular recesses, and two cover clamping chains (4) are combined the circular clamping chain opening port (C) that forms clamping coiled tubing.
2. open coiled tubing injector according to claim 1, is characterized in that: described inner support frame opening port (B) is relative with clamping chain opening port (C), to facilitate from deviating from or again enter at the coiled tubing of well work.
3. open coiled tubing injector according to claim 1, is characterized in that: described outer support frame opening port (D) is located at the back side that gooseneck stretches out, to facilitate inner support frame deviate from or again enter; Outer support frame (1) is fixed on well head top by browpiece (12) and guy wire (13), for bearing ground coiled pipe device to the weight of well head coiled tubing, for inner support frame clamps or departs from coiled tubing, provides space.
4. open coiled tubing injector according to claim 1, it is characterized in that: the inner side of two groups of clamping chains (4) is respectively equipped with clamping hydraulic cylinder (7) and clamping contact roller (8), the outside of clamping contact roller (8) contacts with clamping chain (4), and the inner side of clamping contact roller (8) contacts with clamping hydraulic cylinder (7); The outside of two groups of clamping chains (4) is respectively equipped with tensioning support wheel (6) and hydraulic tensioning cylinder (9), and the outside of described tensioning support wheel (6) contacts with clamping chain (4), and the inner side of tensioning support wheel (6) contacts with hydraulic tensioning cylinder (9).
5. a using method that adopts the open coiled tubing injector described in any one in as above claim 1-4, is characterized in that comprising following methods:
In open coiled tubing injector completes well coiled tubing rise or under task after, while needing the interior coiled tubing of well to inject for a long time fluid or open flow downhole fluid, the pipe clamping device work of wellhead blowout preventor group, the load of coiled tubing in well is hung on pipe clamping device, adjust ground coiled pipe device to the tension force of coiled tubing between well head gooseneck simultaneously, the weight of this section of coiled tubing is added on gooseneck (11), now, one section of coiled tubing of open coiled tubing injector clamping chain (4) clamping is in free suspended state, release the pressure of clamping hydraulic cylinder (7), increase certain pressure to hydraulic tensioning cylinder (9), the clamping chain opening port (C) of clamping chain (4) can be opened, abdicate the passage that departs from clamping chain (4) to the coiled tubing being held, now, adopt external force that the coiled tubing drive unit being fixed on inner support frame (2) is pulled out from the outer support frame opening port (D) of outer support frame (1), just completed the disengaging of the coiled tubing of the inherent work of coiled tubing drive unit and well,
When the coiled tubing of the inherent work of well need to move up and down again, first coiled tubing drive unit is placed in to the opening port edge of open coiled tubing injector outer support frame (1), release clamping hydraulic cylinder (7) internal pressure, add hydraulic pressure to hydraulic tensioning cylinder (9), the opening port of clamping chain (4) is opened, adopt the outer inner support frame (2) of trying hard to recommend, make coiled tubing enter clamping chain (4) through the inner support frame opening port (C) of inner support frame (2), adding hydraulic pressure to clamping hydraulic cylinder (7) makes to clamp contact roller (8) and promotes clamping chain (4) and clamp coiled tubing again, unclamping pipe clamping device makes the load transfer of coiled tubing in well to open coiled tubing injector again, then, logical hydraulic pressure is worked ground coiled pipe device simultaneously, complete the work that removes to coiled tubing in well.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610660366.0A CN106150408B (en) | 2014-08-01 | 2014-08-01 | A kind of open coiled tubing injector |
| CN201410375931.XA CN104165032B (en) | 2014-08-01 | 2014-08-01 | A kind of open coiled tubing infusion appliance and using method thereof |
Applications Claiming Priority (1)
| 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 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610660366.0A Division CN106150408B (en) | 2014-08-01 | 2014-08-01 | A kind of open coiled tubing injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104165032A true CN104165032A (en) | 2014-11-26 |
| CN104165032B CN104165032B (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610660366.0A Active CN106150408B (en) | 2014-08-01 | 2014-08-01 | A kind of open coiled tubing injector |
| CN201410375931.XA Active CN104165032B (en) | 2014-08-01 | 2014-08-01 | A kind of open coiled tubing infusion appliance and using method thereof |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610660366.0A Active CN106150408B (en) | 2014-08-01 | 2014-08-01 | A kind of open coiled tubing injector |
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| Country | Link |
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| CN (2) | CN106150408B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064934A (en) * | 2015-08-26 | 2015-11-18 | 东营天华石油技术开发有限公司 | Coiled tubing unit capable of achieving up-and-down operation under remote control and operating method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162689A (en) * | 2018-10-29 | 2019-01-08 | 中为(上海)能源技术有限公司 | Wellhead Control System and its operating method for coal underground gasifying technology |
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| 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 |
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- 2014-08-01 CN CN201410375931.XA patent/CN104165032B/en active Active
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| US5309990A (en) * | 1991-07-26 | 1994-05-10 | Hydra-Rig, Incorporated | Coiled tubing injector |
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Cited By (2)
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|---|---|---|---|---|
| CN105064934A (en) * | 2015-08-26 | 2015-11-18 | 东营天华石油技术开发有限公司 | Coiled tubing unit capable of achieving up-and-down operation under remote control and operating method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106150408B (en) | 2018-12-18 |
| CN104165032B (en) | 2016-09-07 |
| CN106150408A (en) | 2016-11-23 |
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