CN105089524B - A kind of with pressure goes out applications of coiled tubing unit and process - Google Patents
A kind of with pressure goes out applications of coiled tubing unit and process Download PDFInfo
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- CN105089524B CN105089524B CN201510220101.4A CN201510220101A CN105089524B CN 105089524 B CN105089524 B CN 105089524B CN 201510220101 A CN201510220101 A CN 201510220101A CN 105089524 B CN105089524 B CN 105089524B
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- coiled tubing
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- goes out
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Abstract
The present invention is to go out applications of coiled tubing unit and process on a kind of with pressure, belongs to gas-field exploitation technical field.Described method includes：Using the connector of blanking plug in the injection head clamping running tool and pipe on coild tubing unit, blanking plug in pipe is squeezed into inside coiled tubing；Running tool is carried on injection head, blanking plug in pipe is set, injection head, which increases upper lifting force, makes blanking plug in pipe depart from running tool, and blanking plug is stayed in inside coiled tubing in pipe, and seals coiled tubing；Plug is penetrated in coiled tubing termination, and wild card drawbench is arranged on continuous pipe end, external slips drawbench is hung with crane and above carries coiled tubing, makes the slips unfreezing of suspension coiled tubing；By a coiled tubing gone out successively anti-dress operation window, preventer, first-class equipment is injected, injection head is then used instead and continues above to carry coiled tubing, while a constantly pipe gone out is entangled into the roller on coild tubing unit.
Description
Technical field
Go out applications of coiled tubing unit and process the present invention relates to a kind of with pressure, belong to gas-field exploitation technical field.
Background technology
With continuing for gas well liquid loading time, gas well deliverability is gradually reduced, less than it is critical take flow velocity when shaft bottom start product
Liquid, if taking discharge opeing measure not in time, can make gas well water logging, stopping production.Flow quantity theory is taken based on pit shaft two phase flow and minimum,
The coiled tubing of tripping in minor diameter hangs it after cutting coiled tubing as flow string by special hanger in former pit shaft
In gas production wellhead, the technology can reduce the critical of gas well to a certain extent and take gas flow rate in flow velocity, increase pit shaft, so that
Improve gas well fluid-carrying capability, it is ensured that the steady production of gas well.After the liquid production some time is taken using coiled tubing, the reality of gas well
Border yield be less than coiled tubing critical liquid carrying flow rate, there is hydrops again in gas well, now, due to coiled tubing diameter
Very little, other water pumping gas production measures for being applied to low tolerance hydrops gas well can not be implemented.In addition, the secondary fracturing of oldish well changes
Make, well testing, well workover, the operation such as test have been also required to out coiled tubing.The technique that kill-job plays oil pipe can be used for reference at present, after kill-job
Act coiled tubing, but kill-job operation is very big to reservoir damage, and the human and material resources of consuming are more.
The content of the invention
In order to overcome the deficiencies in the prior art, the present invention provides a kind of with pressure and goes out applications of coiled tubing unit and process.
A kind of with pressure goes out under one of applications of coiled tubing unit, the lower end of coiled tubing into pit shaft, the upper end of coiled tubing
Through main control valve, adapter flange, and it is suspended on hanger, main control valve connection hanger, the other end connection reducing of hanger
Flange, the other end connection gate valve of adapter flange, the other end of gate valve connects small four-way, the other end connection gate valve of small four-way.
A kind of with pressure goes out under the two of applications of coiled tubing unit, the lower end of coiled tubing into pit shaft, the upper end of coiled tubing
Through main control valve, adapter flange, and it is suspended on hanger, main control valve connection hanger, the other end connection reducing of hanger
Flange, the other end connection gate valve of adapter flange, the other end of gate valve connects another adapter flange, and the other end of adapter flange connects
Blanking plug, the first running tool in operation window, the inner chamber connecting tube of operation window are connect, the other end of operation window connects four flashboard blowout preventions
Device, the other end connection blowout prevention box of four ram preventers, the other end connection injection head of blowout prevention box, the second running tool passes through note
Enter head, blowout prevention box, four ram preventers, and be connected with the first running tool.
A kind of with pressure goes out under the three of applications of coiled tubing unit, the lower end of coiled tubing into pit shaft, the upper end of coiled tubing
Through main control valve, and it is suspended on hanger, the top of hanger is located optical-rod clamp, the locking coiled tubing of optical-rod clamp,
Have inside coiled tubing and plug, the upper end of coiled tubing are inserted with inside blanking plug in the pipe squeezed into, the upper end of coiled tubing
Outside is provided with wild card drawbench, and crane connects wild card drawbench by suspension hook.
A kind of with pressure goes out under the four of applications of coiled tubing unit, the lower end of coiled tubing into pit shaft, the upper end of coiled tubing
Through main control valve, there is blanking plug in the pipe squeezed into inside coiled tubing, coiled tubing is suspended on hanger, hanger it is another
Attended operation window is held, the other end of operation window connects four ram preventers, and the other end connection blowout prevention box of four ram preventers is prevented
The other end connection injection head of spray box, injection head hangs by crane, the other end connection guider of injection head, guider it is another
End connection coiled tubing work vehicle.
A kind of with pressure goes out coiled tubing process, contains following steps：
Step 1, closure coiled tubing；
Gas production wellhead gate valve top christmas tree (i.e. small four-way and gate valve) is removed before operation, blind plate method is installed on the right side of gate valve
Orchid, then installs crossover flange, operation window, preventer, injection head successively on gate valve top；It will be fed into instrument and blanking plug in pipe
After connection, blanking plug in pipe is squeezed into inside coiled tubing by injection head clamping running tool, treats that blanking plug is effectively sat in pipe
It is honored as a queen, will be fed into instrument and depart from blanking plug；Blanking plug is stayed in inside coiled tubing in pipe, and seals coiled tubing.
Step 2, above carry coiled tubing；
Plug is penetrated in coiled tubing termination, wild card drawbench is arranged on continuous pipe end；External slips are hung with crane
Coiled tubing is carried on drawbench, makes slips unfreezing and above carries after coiled tubing sufficient length, a coiled tubing gone out is anti-successively
Dress operation window, preventer, then use injection head instead and continue above to carry coiled tubing, while a constantly pipe gone out is entangled into continuous oil
Roller on pipe working rig.
To achieve these goals, according to an aspect of the invention, there is provided a kind of with pressure goes out applications of coiled tubing unit,
With pressure goes out applications of coiled tubing unit and has operation window, four lock preventers, blowout prevention box and the injection head being sequentially tightly connected, with pressure
Going out applications of coiled tubing unit also has the interior blanking plug of running tool, pipe and wild card drawbench, and running tool sequentially passes through operation window, four
Blanking plug is connected on the end of running tool in lock preventer, blowout prevention box and injection head, pipe, and blanking plug is used for the company of closure in pipe
Continuous oil pipe, when acting coiled tubing, wild card drawbench is fixed on the end of coiled tubing, and the connection of wild card drawbench is outside
On portion's power set.
Further, with pressure goes out applications of coiled tubing unit also with guider, and guider is connected to the remote anti-of injection head
On one end of spray box, guider is used to be oriented to coiled tubing.
Further, with pressure goes out applications of coiled tubing unit also with the second adapter flange, and the second adapter flange is connected to behaviour
Between the gate valve for making window and oil well mouthful.
Further, running tool includes the first running tool and the second running tool, and the first running tool is sent with second
Enter instrument connection, and the second running tool extends outside injection head.
Go out coiled tubing process there is provided a kind of with pressure according to another aspect of the present invention, using foregoing band
Applications of coiled tubing unit has been pressed out to carry out out coiled tubing, with pressure goes out coiled tubing process and comprise the following steps：
Step S1：Will oil well mouthful gate valve close after remove the top christmas tree of oil well mouthful, then by operation window, four lock blowout preventions
Device, blowout prevention box and injection head are connected to gate valve in turn, and will be fed into coiled tubing to block coiled tubing using running tool；
Step S2：Operation window, four lock preventers, blowout prevention box and injection head are torn open after blanking plug closure coiled tubing in pipe
Remove, and the end of coiled tubing is connected using wild card drawbench, act coiled tubing by external motive device.
Further, during step S2, coiled tubing is risen after preset distance, and with pressure goes out coiled tubing
Process also includes step S3：Remove wild card drawbench, then by operation window, four lock preventers, blowout prevention box and injection head according to
It is secondary to be connected on the work package being set on coiled tubing at oil well mouthful place, coiled tubing pass through operation window, four lock preventers,
Carried out out after blowout prevention box and injection head by external motive device.
During step S2, gate valve is removed, and the first adapter flange of work package is removed, then operation window is connected
It is connected on the hanger of work package.
It is an advantage of the invention that safe in the case of no killing well, simple and direct, efficient act coiled tubing, it is to avoid to storage
Layer is damaged.
Brief description of the drawings
When considered in conjunction with the accompanying drawings, by referring to following detailed description, can more completely more fully understand the present invention with
And the adjoint advantage of many of which is easily learnt, but accompanying drawing described herein is used for providing a further understanding of the present invention,
The part of the present invention is constituted, schematic description and description of the invention is used to explain the present invention, do not constituted to this hair
Bright improper restriction, wherein：
Fig. 1 is the structural representation of the production wellhead of coiled tubing water pumping gas production gas well；
Fig. 2 squeezes into plug structure schematic diagram in pipe for the present invention's；
Fig. 3 above carries coiled tubing structural representation for the crane traction wild card drawbench of the present invention；
Fig. 4 plays coiled tubing structural representation for the injection head of the present invention.
The present invention is further described with reference to the accompanying drawings and examples.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of with pressure goes out applications of coiled tubing unit and process, and company more particularly to how is played out in the case of no killing well
Continuous oil pipe, it is adaptable to using gas well of the coiled tubing as flow string.
Obviously, those skilled in the art belong to the guarantor of the present invention based on many modifications and variations that spirit of the invention is done
Protect scope.
Embodiment 1：A kind of with pressure goes out applications of coiled tubing unit, as shown in figure 1, under the lower end of coiled tubing 1 into pit shaft,
The upper end of coiled tubing 1 passes through main control valve 2, the first adapter flange 4, and is suspended on hanger 3, the connection hanger of main control valve 2
3, the other end of hanger 3 connects the first adapter flange 4, the other end connection gate valve 5 of the first adapter flange 4, gate valve 5 it is another
The small four-way 6 of end connection, the other end connection gate valve 7 of small four-way 6,
As shown in Fig. 2 under the lower end of coiled tubing 1 into pit shaft, the upper end of coiled tubing 1 passes through main control valve 2, becomes shot
Orchid 4, and be suspended on hanger 3, the connection hanger 3 of main control valve 2, the other end of hanger 3 connects the first adapter flange 4, the
The other end connection gate valve 5 of one adapter flange 4, the other end of gate valve 5 connects another second adapter flange 8, the second adapter flange 8
Other end attended operation window 10, blanking plug 9, the first running tool 11 in the inner chamber connecting tube of operation window 10, operation window 10
The other end connects four ram preventers 12, the other end connection blowout prevention box 13 of four ram preventers 12, the other end of blowout prevention box 13
Injection head 14 is connected, the second running tool 15 passes through injection head 14, blowout prevention box 13, four ram preventers 12, and is sent into first
Instrument 11 is connected,
As shown in figure 3, under the lower end of coiled tubing 1 into pit shaft, the upper end of coiled tubing 1 passes through main control valve 2, and hangs
On hanger 3, the top of hanger 3 is located in optical-rod clamp 16, the locking coiled tubing 1 of optical-rod clamp 16, coiled tubing 1
Portion, which has, is inserted with plug 17 inside blanking plug 9 in the pipe squeezed into, the upper end of coiled tubing 1, pacify outside the upper end of coiled tubing 1
Equipped with wild card drawbench 18, crane 19 connects wild card drawbench 18 by suspension hook,
As shown in figure 4, under the lower end of coiled tubing 1 into pit shaft, the upper end of coiled tubing 1 passes through main control valve 2, continuous oil
There are blanking plug 9 in the pipe squeezed into inside pipe 1, coiled tubing 1 is suspended on hanger 3, the other end attended operation window of hanger 3
10, the other end of operation window 10 connects four ram preventers 12, the other end connection blowout prevention box 13 of four ram preventers 12, blowout prevention
The other end connection injection head 14 of box 13, injection head 14 is hung by crane 19, the other end connection guider 20 of injection head 14, is led
Coiled tubing work vehicle 21 is connected to the other end of device 20,
Embodiment 2：It is a kind of to be used for the method for coiled tubing in pressure outlet well, as shown in Figure 1, Figure 2, Figure 3, Figure 4,
1st, blanking plug in pipe is squeezed into；
(1) closing gate valve 5, remove top christmas tree, i.e., small four-way 6, gate valve 7.
(2) explosion-proof instrument is used, by the second adapter flange 8, operation window 10, four ram preventers 12, blowout prevention box 13, injection
First 14, it is sequentially arranged at the top of christmas tree gate valve 5.
(3) the first running tool 11 of connection, the second running tool 15, are then passed through injection head 14, blowout prevention box 13, four
Ram preventer 12, operation window 10.Opening operation window 10, send the first running tool 11 connected, second at its inner cylinder
Enter instrument 15 with blanking plug 9 in pipe to be connected.
(4) sealed blowout preventing box 13, open gate valve 5, with injection head 14 by the first running tool 11, the second running tool 15 with
And the finger weight that the connector of blanking plug 9 is slowly squeezed on the inside of coiled tubing 1, close observation coiled tubing work vehicle in pipe
Instrumented data.
(5) when blanking plug 9 is squeezed at coiled tubing 1 to precalculated position about 1.5~2.0m in pipe, second on injection head 14
Blanking plug 9 in running tool 15, pipe is carried to set；The increased force of injection head 14 is again stepped up, the running tool of blanking plug 9 and first in pipe
11 depart from, and stay in precalculated position.
(6) rise and the first running tool 11, the second running tool 15, closing gate valve 5.
(7) confirm in pipe after the good seal of blanking plug 9, injection head 14, blowout prevention box 13, four ram preventers are removed successively
12nd, operation window 10, the second adapter flange 8, then remove gate valve 5 and first adapter flange 4 on the top of hanger 3.
2nd, crane traction wild card drawbench above carries coiled tubing；
(1) plug 17 is penetrated in the upper end of coiled tubing 1, and by wild card drawbench 18 installed in the upper end of continuous pipe 1
Head.
(2) packing element of hanger 3 is adjusted to dynamic sealing state.Crane 19 above carries coiled tubing 1, big when hanger 3
After slips unfreezing, the big slips of suspension coiled tubing 1 is taken out.Carried in continuation after about 6 meters of coiled tubing 1, will with optical-rod clamp 16
Coiled tubing 1 is locking.
3rd, injection head acts coiled tubing；
(1) the wild card drawbench 18 of the termination of coiled tubing 1 is taken down, then anti-dress operation window 10, four ram preventers successively
12。
(2) wild card drawbench 18 is arranged on to the termination of coiled tubing 1 again, wild card drawbench 18 is hung with crane 19,
Optical-rod clamp 16 is removed, the operation window 10 penetrated, four ram preventers 12 are sequentially arranged on hanger 3.
(3) coiled tubing 1 is hung using the suspension flashboard of four ram preventers 12, then takes down the termination of coiled tubing 1
Wild card drawbench 18, and counter wear blowout prevention box 13, injection head 14.On injection head 14 install guider 20, by rise it is continuous
Oil pipe 1 is entangled to by guider 20 on the roller of coiled tubing work vehicle 21.
(4) using injection head 14 go out coiled tubing 1, while by constantly rise a coiled tubing 1 continue to be entangled to continuous oil
On the roller of pipe Operation Van 21.
(5) rise after the completion of pipe operation, close christmas tree master control gate valve 2, injection head 14, blowout prevention box 13, blowout prevention are removed successively
Device 12, operation window 10, hanger 3, recover former christmas tree.
As described above, being explained to embodiments of the invention, as long as but essentially without this hair of disengaging
Bright inventive point and effect can have many deformations, and this will be readily apparent to persons skilled in the art.Therefore, this
The variation of sample is also integrally incorporated within protection scope of the present invention.
Claims (7)
1. a kind of with pressure goes out coiled tubing process, it is characterised in that contain following steps：
Step 1, closure coiled tubing；
Gas production wellhead gate valve (5) top christmas tree, i.e., small four-way (6) and gate valve (7) are removed before operation, is pacified on the right side of gate valve (7)
Blank flange is filled, crossover flange, operation window, preventer, injection head are then installed successively on gate valve (5) top；It will be fed into instrument
After blanking plug is connected in pipe, blanking plug in pipe is squeezed into inside coiled tubing by injection head clamping running tool, treated in pipe
After blanking plug is effectively set, it will be fed into instrument and depart from blanking plug；
Step 2, above carry coiled tubing；
Plug is penetrated in coiled tubing termination, wild card drawbench is arranged on continuous pipe end；External slips drawing is hung with crane
Coiled tubing is carried on device, makes slips unfreezing and above carries after coiled tubing sufficient length, the coiled tubing that will be acted and counter successively wear behaviour
Make window, preventer, then use injection head instead and continue above to carry coiled tubing, make while a constantly pipe gone out is entangled into coiled tubing
Roller on industry machine.
2. a kind of with pressure goes out coiled tubing process, it is characterised in that goes out applications of coiled tubing unit using with pressure and is risen
Go out coiled tubing, described with pressure goes out applications of coiled tubing unit and have the operation window (10) being sequentially tightly connected, four lock preventers
(12), blowout prevention box (13) and injection head (14), described with pressure goes out applications of coiled tubing unit and also has the interior blanking plug of running tool, pipe
(9) and wild card drawbench (18), the running tool sequentially passes through the operation window (10), the four locks preventer (12), institute
State blanking plug (9) in blowout prevention box (13) and injection head (14), the pipe to be connected on the end of the running tool, in the pipe
Blanking plug (9) is used to block coiled tubing, and when acting the coiled tubing, the wild card drawbench (18) is fixed on the company
On the end of continuous oil pipe, and the wild card drawbench (18) is connected in external motive device；
Described with pressure goes out coiled tubing process and comprises the following steps：
Step S1：Will oil well mouthful gate valve (5) close after remove the top christmas tree of oil well mouthful, then by operation window (10), four locks
Preventer (12), blowout prevention box (13) and injection head (14) are connected to the gate valve (5) in turn, and will be fed into company using running tool
Continue in oil pipe to block the coiled tubing；
Step S2：Blanking plug (9) is blocked the operation window (10), the four locks blowout prevention after the coiled tubing in the pipe
Device (12), the blowout prevention box (13) and the injection head (14) are removed, and connect the company using the wild card drawbench (18)
The end of continuous oil pipe, acts the coiled tubing by external motive device.
3. with pressure according to claim 2 goes out coiled tubing process, it is characterised in that described with pressure goes out continuously
Oil pipe device also has guider (20), and the guider (20) is connected to the remote blowout prevention box of the injection head (14)
(13) on one end, the guider (20) is used to be oriented to the coiled tubing.
4. with pressure according to claim 2 goes out coiled tubing process, it is characterised in that described with pressure goes out continuously
Oil pipe device also has the second adapter flange (8), and second adapter flange (8) is connected to the operation window (10) and oil well mouthful
Gate valve (5) between.
5. with pressure according to claim 2 goes out coiled tubing process, it is characterised in that the running tool includes
First running tool (11) and the second running tool (15), first running tool (11) and second running tool (15)
Connection, and second running tool (15) extends the injection head (14) outside.
6. with pressure according to any one of claim 2 to 5 goes out coiled tubing process, it is characterised in that in institute
During stating step S2, the coiled tubing is risen after preset distance, and described with pressure goes out coiled tubing process
Also include step S3：Remove the wild card drawbench (18), then by the operation window (10), the four locks preventer (12),
The blowout prevention box (13) and the injection head (14) are connected to the work being set on the coiled tubing at oil well mouthful in turn
On component, the coiled tubing is through the operation window (10), the four locks preventer (12), the blowout prevention box (13) and described
Injection head has been carried out out after (14) by the external motive device.
7. with pressure according to claim 6 goes out coiled tubing process, it is characterised in that in the mistake of the step S2
Cheng Zhong, the gate valve (5) is removed, and the first adapter flange (4) of the work package is removed, then by the operation window (10)
It is connected on the hanger of the work package (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510220101.4A CN105089524B (en) | 2014-05-14 | 2015-05-01 | A kind of with pressure goes out applications of coiled tubing unit and process |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410204614 | 2014-05-14 | ||
| CN2014102046141 | 2014-05-14 | ||
| CN201510220101.4A CN105089524B (en) | 2014-05-14 | 2015-05-01 | A kind of with pressure goes out applications of coiled tubing unit and process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105089524A CN105089524A (en) | 2015-11-25 |
| CN105089524B true CN105089524B (en) | 2017-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510220101.4A Active CN105089524B (en) | 2014-05-14 | 2015-05-01 | A kind of with pressure goes out applications of coiled tubing unit and process |
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| CN (1) | CN105089524B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112302558B (en) * | 2019-07-30 | 2022-04-01 | 中国石油化工股份有限公司 | Wellhead suspension device suitable for small-diameter coiled tubing operation |
| CN113047795B (en) * | 2019-12-27 | 2022-07-05 | 中国石油天然气股份有限公司 | Method for pressing reducing oil pipe string |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7267179B1 (en) * | 2004-02-02 | 2007-09-11 | Leo William Abel | Method for rapid installation of a smaller diameter pressure control device usable on blow out preventers |
| CN202194611U (en) * | 2011-08-26 | 2012-04-18 | 王秀忠 | Oil-water well long-stroke snubbing operation device |
| CN202338257U (en) * | 2011-11-07 | 2012-07-18 | 中国石油天然气股份有限公司 | Seal and suspension integrated wellhead device for coiled tubing capable of gas recovery by water discharge |
| CN102635337B (en) * | 2012-04-13 | 2014-06-04 | 中国石油天然气股份有限公司 | Rapid gas production method implemented after coiled tubing is put in gas well |
| CN202745707U (en) * | 2012-07-26 | 2013-02-20 | 中国石油天然气股份有限公司 | Coiled tubing operation operating window |
| CN203531793U (en) * | 2013-11-13 | 2014-04-09 | 胜利油田胜机石油装备有限公司 | Safe and rapid operation well head device for offshore oil well |
| CN204984309U (en) * | 2015-05-01 | 2016-01-20 | 中国石油天然气股份有限公司 | Coiled tubing device has been pressed out in area |
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