CN103775007A - Rapid pressure welding connection method and device of coiled tubing - Google Patents
Rapid pressure welding connection method and device of coiled tubing Download PDFInfo
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- CN103775007A CN103775007A CN201310520553.5A CN201310520553A CN103775007A CN 103775007 A CN103775007 A CN 103775007A CN 201310520553 A CN201310520553 A CN 201310520553A CN 103775007 A CN103775007 A CN 103775007A
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- coiled tubing
- crimping
- cable
- joint
- trilobal
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Abstract
The invention provides a rapid pressure welding connection method and device of a coiled tubing, and belongs to the technical field of oil fields. A first hydraulic power push block and a second hydraulic power push block are of regular hexagon shapes, a trilobal pressure welding connector is solid, a rod-shaped pressure welding connector is provided with first annular pressure welding grooves, second annular pressure welding grooves and limiting protrusions, transformative coiled tubing can be hung because of the stepped shapes of the limiting protrusions, cable structures are separated by the trilobal pressure welding connector and the transformative coiled tubing can be hung on the stepped shapes of the annular grooves. The method and device have the advantages of being capable of guaranteeing that a cable between a wellhead and a testing console cannot lose efficacy due to high temperature produced by electric soldering, reducing technology difficulty and increasing the construction speed.
Description
Technical field
The present invention relates to the quick crimping connection method of a kind of coiled tubing and device, belong to oilfield technology field.
Background technology
Coiled tubing is a kind of flexible continual minor diameter tubing that has, in SAGD oil field, conventional long coiled tubing built-in testing instrument is transferred to and in well, is carried out temperature, press the operations such as test, on the injection head that uses while the carrying coiled tubing squeezing structure that is chain track type, four legs fix on the ground and support, top injection head coordinates stiction that motor produces to make it regain Operation Tubing Aggregate with chain crawler belt, because injection head chain caterpillar belt structure is fixing non-adjustable, if coiled tubing is greater than its original diameter, just cannot or damage machine by injection head, therefore must connect upper and lower two coiled tubing joints by the form of electric welding, but be made with so following 3 shortcomings:
1, the instrument of coiled tubing the inside or ground residue cable cannot bear the high temperature that electric welding brings and cause damaging, and are again lowered to the test cable that need to cut out damage, have so just caused the deep-seated that can test to be set up and have moved.
2, need on-the-spot consumer, need professional electric welder, operation is more complicated, and once welding needs the construction of half an hour, and the weld bond of need to polishing.
3, upper and lower two coiled tubings are not easy to welding with one heart together, after welding, can produce fracture because of the stress that injection head tilts to produce when not drawing, cause the trouble of construction again.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides the quick crimping connection method of a kind of coiled tubing and device.
The quick crimping connection method of a kind of coiled tubing, contains following steps;
On put forward process steps: injection head is connected to bearing and is steadily placed on well head top; injection head forward is stretched out and is carried joint; the ground residue cable of underground continuous oil pipe is filled in and carried joint; then with on propose joint butt welding, polishing utilizes after soldering opening the reversion of injection head hydraulic system to propose underground continuous oil pipe;
Clavate crimping connector can be assisted coiled tubing coaxial step with one heart up and down, limiting card makes upper and lower coiled tubing move to relevant position to stop, annular crimp groove is can tightly link together with crimp head after coiled tubing distortion in order to make, can crimping the joint of twice be to use for the super dark well of overlength, crimping can produce larger pulling force twice
Crimp head makes coiled tubing with one heart coaxial up and down, and limiting card can tangle device at coiled tubing place, and this three-vaned device has used solid mode, is applicable to manage the coiled tubing crimping of interior 3 cables; Hydraulic pump uses foot-operated supercharging, after crimping, can produce the pressure of 60 tons-100 tons by pressure release taking-up pushing block die head, is enough to compressive strain coiled tubing joint;
Also contain following steps;
Step 1, after being penetrated to tester or cable, crimping connector is stuck in (trilobal is for snapping in lower coiled tubing joint) on underground continuous oil pipe joint, test cable or instrument are put in to top connection, then stretch out top connection from injection head and dock closely (trilobal is same with it) with crimping connector;
After step 3, crimping, use and on injection head, carry underground continuous oil pipe;
The external diameter of coiled tubing is in about 32mm, and wall thickness is in 3mm left and right, is not lowered to 500-1000 rice not etc. in oil well, and 3-4 testers are generally contained in inside, and most of tester is cut off rear inefficacy and cannot be born high temperature.
Underground continuous oil pipe welding and on carry in incidental situation have: the cable internal insulating layer that the high temperature in welding process destroys instrument causes instrument to lose efficacy, on carry in process because top connection and lower contact have low-angle can cause the stress of welding position to concentrate and produce fracture, after welding position overheap, cannot pass through injection head.
The quick press-contact connection apparatus of a kind of coiled tubing, the first hydraulic power pushing block, the second hydraulic power pushing block adopt regular hexagon; Trilobal crimping connector is solid, and clavate crimping connector has the 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 distortion; Trilobal crimping connector is separated the structure of cable and the stepped ramp type of annular groove thereof and can tangle the coiled tubing of distortion.
Advantage of the present invention is to guarantee that the cable between well head and test console can not lose efficacy because electric welding produces high temperature, reduces technical difficulty, improves speed of application.
Accompanying drawing explanation
When considered in conjunction with the accompanying drawings, by the detailed description with reference to below, can more completely understand better the present invention and easily learn wherein many advantages of following, but accompanying drawing described herein is used to provide a further understanding of the present invention, form a part of the present invention, schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention, as schemed wherein:
Fig. 1 coiled tubing structural representation of the present invention.
Prompting intention on Fig. 2 coiled tubing of the present invention;
Fig. 3 clavate crimping of the present invention connector schematic diagram;
Fig. 4 trilobal crimping of the present invention connector schematic diagram;
Fig. 5 trilobal crimping of the present invention connector side schematic view;
Fig. 6 hydraulic pump structure simplified schematic diagram of the present invention;
In Fig. 7 crimping of the present invention, carry process schematic diagram;
In Fig. 8 crimping of the present invention, carry process schematic diagram;
In Fig. 9 crimping of the present invention, carry process schematic diagram;
Below in conjunction with drawings and Examples, the present invention is further described.
The specific embodiment
Obviously the many modifications and variations that, those skilled in the art do based on aim of the present invention belong to protection scope of the present invention.
Embodiment 1: as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 and Fig. 9, the quick press-contact connection apparatus of a kind of coiled tubing, is characterized in that the first hydraulic power pushing block 16, the second hydraulic power pushing block 17 adopt regular hexagon; Trilobal crimping connector 14 is solid, and clavate crimping connector 10 has the first annular crimp groove 11, the second shape crimp groove 12 and limiting card 13, and the step shape of limiting card 13 can tangle the coiled tubing of distortion; Trilobal crimping connector 14 is separated the structure of cable and the stepped ramp type of annular groove thereof and can tangle the coiled tubing of distortion, and there is thickening position 100 at the middle part of trilobal crimping connector 14.
Operation Tubing Aggregate 3 loads cable dish recovering tray 4, crawler belt iron chains 6 and injection head 5 stube cable pipes 7, underground continuous oil pipe 1 stube cable 2, underground continuous oil pipe 1 from well head 8 along entering, stablize bearing 9 and support crawler belt iron chains 6 and injection head 5, hydraulic pump 15 connects the first hydraulic power pushing block 16, the second hydraulic power pushing block 17.
Formulation is gone up in a kind of underground continuous oil pipe crimping fast, and it uses hydraulic tongs to carry out crimping after using crimping connector to insert coiled tubing, makes two coiled tubings carry out the mode connecting fast.
The quick press-contact connection apparatus of a kind of coiled tubing, is characterized in that hydraulic power pushing block adopts regular hexagon; Trilobal crimping connector is solid, and clavate crimping connector has annular crimp groove and limiting card,
The stepped ramp type of annular groove can tangle the coiled tubing of distortion;
Trilobal cross is separated the structure of cable and the stepped ramp type of annular groove thereof and can tangle the coiled tubing of distortion.
As mentioned above, embodiments of the invention are explained, but as long as not departing from fact inventive point of the present invention and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, within such variation is also all included in protection scope of the present invention.
Claims (4)
1. the quick crimping connection method of coiled tubing; it is characterized in that putting forward process steps: injection head is connected to bearing and be steadily placed on well head top; injection head forward is stretched out and is carried joint; the ground residue cable of underground continuous oil pipe is filled in and carried joint; then with on propose joint butt welding, polishing utilizes after soldering opening the reversion of injection head hydraulic system to propose underground continuous oil pipe;
Clavate crimping connector can be assisted coiled tubing coaxial step with one heart up and down, limiting card makes upper and lower coiled tubing move to relevant position to stop, annular crimp groove is can tightly link together with crimp head after coiled tubing distortion in order to make, can crimping the joint of twice be to use for the super dark well of overlength, crimping can produce larger pulling force twice
Crimp head makes coiled tubing with one heart coaxial up and down, and limiting card can tangle device at coiled tubing place, and this three-vaned device has used solid mode, is applicable to manage the coiled tubing crimping of interior 3 cables; Hydraulic pump uses foot-operated supercharging, after crimping, can produce the pressure of 60 tons-100 tons by pressure release taking-up pushing block die head, is enough to compressive strain coiled tubing joint.
2. the quick crimping connection method of a kind of coiled tubing according to claim 1, is characterized in that also containing following steps;
Step 1, after being penetrated to tester or cable, crimping connector is stuck in (trilobal is for snapping in lower coiled tubing joint) on underground continuous oil pipe joint, test cable or instrument are put in to top connection, then stretch out top connection from injection head and dock closely (trilobal is same with it) with crimping connector;
Step 2, use crimping piece to carry out hydraulic pressure crimping to the recess of crimping connector its distortion is tightly connected with joint;
After step 3, crimping, use and on injection head, carry underground continuous oil pipe;
Step 4, when by the cable carried and steel pipe again when G.I.H, cut off the steel pipe of lower end;
Step 5, proposition steel pipe and joint, expose cable.
3. the quick press-contact connection apparatus of coiled tubing, is characterized in that the first hydraulic power pushing block, the second hydraulic power pushing block adopt regular hexagon; Trilobal crimping connector is solid, and clavate crimping connector has the 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 distortion; Trilobal crimping connector is separated the structure of cable and the stepped ramp type of annular groove thereof and can tangle the coiled tubing of distortion.
4. the quick press-contact connection apparatus of a kind of coiled tubing according to claim 3, it is characterized in that Operation Tubing Aggregate loads cable dish recovering tray, crawler belt iron chains and injection head stube cable pipe, underground continuous oil pipe stube cable, underground continuous oil pipe from well head along enter, stablize seat supports crawler belt iron chains and injection head, hydraulic pump connects the first hydraulic power pushing block, the second hydraulic power pushing block.
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 |
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| Publication Number | Publication Date |
|---|---|
| CN103775007A true CN103775007A (en) | 2014-05-07 |
| CN103775007B 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337983A (en) * | 2018-12-18 | 2020-06-26 | 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337983A (en) * | 2018-12-18 | 2020-06-26 | 中国石油天然气股份有限公司 | Optical fiber hydrophone |
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| CN103775007B (en) | 2016-08-17 |
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