CN103775007B - A kind of coiled tubing quickly crimps connection method and device - Google Patents
A kind of coiled tubing quickly crimps connection method and device Download PDFInfo
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- CN103775007B CN103775007B CN201310520553.5A CN201310520553A CN103775007B CN 103775007 B CN103775007 B CN 103775007B CN 201310520553 A CN201310520553 A CN 201310520553A CN 103775007 B CN103775007 B CN 103775007B
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- coiled tubing
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Abstract
A kind of coiled tubing quickly crimps connection method and device, belongs to oilfield technology field.First hydraulic power pushing block, the second hydraulic power pushing block use regular hexagon；Trilobal crimping union joint is solid, and rod crimping union joint has first annular crimp groove, the second shape crimp groove and limiting card, and the step shape of limiting card can tangle the coiled tubing of deformation；The stepped ramp type of structure and annular groove thereof that trilobal crimping union joint separates cable can tangle the coiled tubing of deformation.It is an advantage of the invention that the cable that ensure that between well head and test console will not lose efficacy because electric welding produces high temperature, reduce technical difficulty, improve speed of application.
Description
Technical field
The present invention relates to a kind of coiled tubing and quickly crimp connection method and device, belong to oilfield technology neck
Territory.
Background technology
Coiled tubing is a kind of continual minor diameter tubing with flexibility, conventional in SAGD oil field
Long coiled tubing built-in testing instrument carries out the operation such as temperature, pressure test in transferring to well, above carry continuous oil
The squeezing structure that injection head is chain track type used during pipe, four lower limbs fix on the ground and support,
Top injection head uses chain crawler belt to coordinate the produced stiction of motor to make it regain coiled tubing
Car, because injection head chain caterpillar belt structure is fixed non-adjustable, if coiled tubing is more than its original diameter,
Just by injection head or damage machine, therefore the form of electric welding cannot must be used to connect upper and lower two
Coiled tubing joint, but do so has following 3 shortcomings:
1, instrument or ground residue cable inside coiled tubing cannot bear the high temperature that electric welding is brought
And cause damaging, entering down needs to cut out the test cable of damage, thus causes and can test
The deepest position on move.
2, needing field electrical equipment, need specialty electric welder, operation is more complicated, once welds and needs
Want the construction of half an hour, and need weld bond of polishing.
3, upper and lower two coiled tubings are not easy to welding the most with one heart, meeting after welding
Because injection head tilts the stress produced and produces fracture during not drawing, cause the trouble again constructed.
Summary of the invention
In order to overcome the deficiencies in the prior art, the present invention provides a kind of coiled tubing quickly to crimp connection
Method and device.
A kind of coiled tubing quickly crimps connection method, containing following steps；
On put forward process steps: injection head is connected bearing and is stably placed at above well head, injection head rotate forward
Stretch out and carry joint, the ground residue cable of underground continuous oil pipe is filled in and carries joint, then with upper
Propose joint butt welding, after polishing soldering opening, utilize the reversion of injection head hydraulic system to propose underground continuous oil pipe;
Rod crimping union joint can assist coiled tubing coaxial step with one heart up and down, and limiting card makes
Lower coiled tubing move to relevant position stop, annular crimp groove be so that coiled tubing deformation after
Together with can being tightly coupled with crimp head, it is possible to the joint crimping twice is for the well of overlength ultra-deep
Used, crimp twice and can produce bigger pulling force,
Crimp head makes coiled tubing coaxial concentric up and down, and limiting card can tangle dress at coiled tubing
Putting, this three-vaned device employs solid mode, it is adaptable to manage the continuous oil of interior 3 cables
Pipe crimps;Hydraulic pump uses foot-operated supercharging, can take out pushing block die head energy with pressure release after crimping
Enough produce the pressure of 60 tons-100 tons, it is sufficient to compressive strain coiled tubing joint;
Possibly together with following steps；
Step 1, crimping union joint is penetrated test instrunment or cable after be stuck in underground continuous oil pipe joint
Upper (trilobal is for snapping in lower coiled tubing joint), puts in top connection by test cable or instrument, so
After stretch out top connection and the docking that crimps union joint closely (trilobal therewith with) from injection head；
Step 2, use crimp block carry out hydraulic pressure crimping to the recess of crimping union joint makes it deform
Tightly it is connected with joint；
Use after step 3, crimping on injection head and carry underground continuous oil pipe；
Step 4, when by the cable that carries and during steel pipe G.I.H again, cut off the steel pipe of lower end；
Step 5, proposition steel pipe and joint, expose cable.
The external diameter of coiled tubing at about 32mm, wall thickness at about 3mm, in oil well under enter
500-1000 rice, inside typically contains 3-4 test instrunments, and major part test instrunment is cut off
Rear inefficacy and high temperature cannot be born.
Underground continuous oil pipe welding and on carry in incidental situation have: the high temperature in welding process break
The cable internal insulating layer of bad instrument causes instrument to lose efficacy, and has with lower contact because of top connection during above carrying
Low-angle can cause the stress of welding position to concentrate and produce fracture, and welding position cannot lead to after piling up too much
Cross injection head.
A kind of quick press-contact connection apparatus of coiled tubing, the first hydraulic power pushing block, the second hydraulic power
Pushing block uses regular hexagon；Trilobal crimping union joint is solid, and rod crimping union joint has the first ring
Shape crimp groove, the second shape crimp groove and limiting card, the step shape of limiting card can tangle the company of deformation
Continuous oil pipe；The stepped ramp type of structure and annular groove thereof that trilobal crimping union joint separates cable can
Tangle the coiled tubing of deformation.
It is an advantage of the invention that the cable that ensure that between well head and test console will not be because of electricity
Weldering produces high temperature and lost efficacy, and reduces technical difficulty, improves speed of application.
Accompanying drawing explanation
When considered in conjunction with the accompanying drawings, by referring to detailed description below, it is possible to more completely preferably
Understand the present invention and easily learn the advantage that many of which is adjoint, but accompanying drawing described herein is used for
A further understanding of the present invention is provided, constitutes the part of the present invention, the schematic enforcement of the present invention
Example and explanation thereof are used for explaining the present invention, are not intended that inappropriate limitation of the present invention, such as figure wherein:
The coiled tubing structural representation of Fig. 1 present invention.
On the coiled tubing of Fig. 2 present invention, prompting is intended to；
The rod crimping union joint schematic diagram of Fig. 3 present invention；
The trilobal crimping union joint schematic diagram of Fig. 4 present invention；
The trilobal crimping union joint side schematic view of Fig. 5 present invention；
The hydraulic pump structure simplified schematic diagram of Fig. 6 present invention；
Process schematic is carried in the crimping of Fig. 7 present invention；
Process schematic is carried in the crimping of Fig. 8 present invention；
Process schematic is carried in the crimping of Fig. 9 present invention；
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Detailed description of the invention
Obviously, the many modifications and variations that those skilled in the art are done based on spirit of the invention belong to
Protection scope of the present invention.
Embodiment 1: as shown in Figure 1, Figure 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 and Tu
Shown in 9, a kind of quick press-contact connection apparatus of coiled tubing, it is characterised in that the first hydraulic power pushing block
16, the second hydraulic power pushing block 17 uses regular hexagon；Trilobal crimping union joint 14 is solid,
Rod crimping union joint 10 has first annular crimp groove the 11, second shape crimp groove 12 and limiting card 13,
The step shape of limiting card 13 can tangle the coiled tubing of deformation；Trilobal crimping union joint 14
The stepped ramp type of the structure and annular groove thereof that separate cable can tangle the coiled tubing of deformation, SANYE
There is thickening position 100 at the middle part of shape crimping union joint 14.
Operation Tubing Aggregate 3 loads cable dish recovering tray 4, crawler belt iron chains 6 and injection head 5 and connects cable tube
7, underground continuous oil pipe 1 connects cable 2, and underground continuous oil pipe 1 along entering from well head 8, is stablized and propped up
Seat 9 supports crawler belt iron chains 6 and injection heads 5, hydraulic pump 15 connect the first hydraulic power pushing block 16,
Second hydraulic power pushing block 17.
A kind of upper lifting manipulation of underground continuous oil pipe crimping, it uses crimping union joint to insert coiled tubing
Rear use hydraulic tongs carries out the mode crimping, two coiled tubings being quickly connected.
A kind of quick press-contact connection apparatus of coiled tubing, it is characterised in that hydraulic power pushing block uses positive six
Limit shape；Trilobal crimping union joint is solid, and rod crimping union joint has annular crimp groove and limiting card,
The stepped ramp type of annular groove can tangle the coiled tubing of deformation；
The stepped ramp type of structure and annular groove thereof that trilobal cross separates cable can tangle the company of deformation
Continuous oil pipe.
As it has been described above, embodiments of the invention are explained, but as long as substantially do not have
The inventive point and the effect that have the disengaging present invention can have a lot of deformation, and this is to those skilled in the art
For be apparent from.Therefore, such variation is also integrally incorporated in protection scope of the present invention
Within.
Claims (2)
1. a coiled tubing quickly crimps connection method, it is characterised in that described continuous oil
Pipe quickly crimping connection method uses the quick press-contact connection apparatus of coiled tubing to realize,
The quick press-contact connection apparatus of described coiled tubing includes: the first hydraulic power pushing block, second
Hydraulic power pushing block uses regular hexagon；Trilobal crimping union joint is solid, rod pressure
Joint has first annular crimp groove, the second shape crimp groove and limiting card in succession, limiting card
Step shape can tangle the coiled tubing of deformation；Trilobal crimping union joint separates electricity
The structure of cable and the stepped ramp type of annular groove thereof can tangle the coiled tubing of deformation；Continuously
Oil pipe car loads cable dish recovering tray, crawler belt iron chains and injection head and connects cable tube, and down-hole is even
Continuous oil pipe connects cable, and underground continuous oil pipe along entering, stablizes seat supports crawler belt from well head
Iron chains and injection head, hydraulic pump connects the first hydraulic power pushing block, the second hydraulic power pushes away
Block；
Described coiled tubing quickly crimps connection method and comprises the steps:
On put forward process steps: injection head is connected bearing and is stably placed at above well head, note
Enter head to rotate forward and stretch out and carry joint, the ground of underground continuous oil pipe is remained cable and fills in
Carry joint, then with on propose joint butt welding, utilize injection head hydraulic pressure system after polishing soldering opening
System reversion proposes underground continuous oil pipe；
Rod crimping union joint can assist coiled tubing coaxial step with one heart up and down, spacing
Card makes upper and lower coiled tubing move to relevant position stopping, and annular crimp groove is to make
Together with can being tightly coupled with crimp head after obtaining coiled tubing deformation, it is possible to crimp twice
Joint be in order to the well of overlength ultra-deep is used, crimp twice and can produce bigger drawing
Power,
Crimp head makes coiled tubing coaxial concentric up and down, and limiting card can be at coiled tubing
Place tangles device, and this three-vaned device employs solid mode, it is adaptable to pipe interior 3
The coiled tubing crimping of root cable；Hydraulic pump uses foot-operated supercharging, permissible after crimping
Pushing block die head is taken out in pressure release can produce the pressure of 60 tons-100 tons, it is sufficient to compressive strain is even
Continuous oil connection.
A kind of coiled tubing the most according to claim 1 quickly crimps connection method, its
It is characterised by possibly together with following steps；
Step 1, crimping union joint is penetrated test instrunment or cable after to be stuck in down-hole the most oily
On pipe joint, test cable or instrument are put in top connection, then from injection head stretches out
Joint docks closely with crimping union joint；
Step 2, use crimp block carry out hydraulic pressure crimping to the recess of crimping union joint to be made
Its deformation is tightly connected with joint；
Use after step 3, crimping on injection head and carry underground continuous oil pipe；
Step 4, when by the cable that carries and during steel pipe G.I.H again, cut off lower end
Steel pipe；
Step 5, proposition steel pipe and joint, expose cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310520553.5A CN103775007B (en) | 2013-10-29 | 2013-10-29 | A kind of coiled tubing quickly crimps connection method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310520553.5A CN103775007B (en) | 2013-10-29 | 2013-10-29 | A kind of coiled tubing quickly crimps connection method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103775007A CN103775007A (en) | 2014-05-07 |
| CN103775007B true CN103775007B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310520553.5A Active CN103775007B (en) | 2013-10-29 | 2013-10-29 | A kind of coiled tubing quickly crimps connection method and device |
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| CN (1) | CN103775007B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337983B (en) * | 2018-12-18 | 2022-03-29 | 中国石油天然气股份有限公司 | Optical fiber hydrophone |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6213206B1 (en) * | 1996-02-12 | 2001-04-10 | Transocean Petroleum Technology As | Hydraulically releasable coupling |
| CN201672180U (en) * | 2010-04-16 | 2010-12-15 | 中国石油集团东方地球物理勘探有限责任公司 | Leak-proof hydraulic joint |
| CN201763283U (en) * | 2010-08-25 | 2011-03-16 | 烟台杰瑞石油装备技术有限公司 | Roller set for hydraulic hose of coiled tubing equipment |
| CN102126196A (en) * | 2010-12-22 | 2011-07-20 | 重庆渝通机械有限公司 | Hydraulic oil pipe straight connector clamping device and clamping method thereof |
| CN202810685U (en) * | 2012-07-27 | 2013-03-20 | 中国石油集团长城钻探工程有限公司 | Non-rotating joint for coiled tubing drilling |
| CN203050545U (en) * | 2012-12-03 | 2013-07-10 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Anti-torque coiled tubing annular pressure connector |
| CN203622373U (en) * | 2013-10-29 | 2014-06-04 | 中国石油天然气股份有限公司 | Quick coiled tubing pressure-welding connecting device |
-
2013
- 2013-10-29 CN CN201310520553.5A patent/CN103775007B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6213206B1 (en) * | 1996-02-12 | 2001-04-10 | Transocean Petroleum Technology As | Hydraulically releasable coupling |
| CN201672180U (en) * | 2010-04-16 | 2010-12-15 | 中国石油集团东方地球物理勘探有限责任公司 | Leak-proof hydraulic joint |
| CN201763283U (en) * | 2010-08-25 | 2011-03-16 | 烟台杰瑞石油装备技术有限公司 | Roller set for hydraulic hose of coiled tubing equipment |
| CN102126196A (en) * | 2010-12-22 | 2011-07-20 | 重庆渝通机械有限公司 | Hydraulic oil pipe straight connector clamping device and clamping method thereof |
| CN202810685U (en) * | 2012-07-27 | 2013-03-20 | 中国石油集团长城钻探工程有限公司 | Non-rotating joint for coiled tubing drilling |
| CN203050545U (en) * | 2012-12-03 | 2013-07-10 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Anti-torque coiled tubing annular pressure connector |
| CN203622373U (en) * | 2013-10-29 | 2014-06-04 | 中国石油天然气股份有限公司 | Quick coiled tubing pressure-welding connecting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103775007A (en) | 2014-05-07 |
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