CN104405346A - Hydraulic sand jet perforation choke manifold - Google Patents
Hydraulic sand jet perforation choke manifold Download PDFInfo
- Publication number
- CN104405346A CN104405346A CN201410717724.8A CN201410717724A CN104405346A CN 104405346 A CN104405346 A CN 104405346A CN 201410717724 A CN201410717724 A CN 201410717724A CN 104405346 A CN104405346 A CN 104405346A
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- Prior art keywords
- gate valve
- flat gate
- pipeline
- valve
- way
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/114—Perforators using direct fluid action on the wall to be perforated, e.g. abrasive jets
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in well heads
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid-Pressure Circuits (AREA)
- Sliding Valves (AREA)
Abstract
The invention discloses a hydraulic sand jet perforation choke manifold. The hydraulic sand jet perforation choke manifold comprises a first pipeline cross and a second pipeline cross, and a first flat gate valve, a third flat gate valve and a fifth flat gate valve are arranged between the first pipeline cross and second pipeline cross in parallel; the first flat gate valve and the fifth flat gate valve are located at two sides of the third flat gate valve; a first fixed throttle valve is arranged between the first flat gate valve and one horizontal end of the first pipeline cross, and a fourth fixed throttle valve is arranged between the fifth flat gate valve and the other horizontal end of the first pipeline cross. The hydraulic sand jet perforation choke manifold is capable of precisely controlling the casing pressure in the hydraulic sand jet perforation process so as to avoid the pipeline crack due to over-high pressure or the stratum sand spray or perforation tool failure due to low pressure, the fixed throttle valves are good in erosion wearing resistance and convenient to change, the cost is saved, and the working efficiency is improved.
Description
Technical field
The present invention relates to a kind of hydraulic jet perforation choke manifold.
Background technology
Choke manifold is that be by various valve, pipeline and union, comprise the grid that threeway, four-way and five-way are formed by connecting, it is placed in the side of Oil/gas Well well head for regulating the control device of wellbore pressure in Process of Oil Well Drilling.At present, the choke manifold that drilling well industry adopts, mainly manually and surge two kinds, and throttling branch road is more single for the control of its choke valve and parallel gate valve, staff regulates and controls choke valve and parallel gate valve according to overpressure in good time, to control the flow direction of borehole pressure and fluid, above-mentioned regulation and control operation completely by manual implementation, not only complex operation, labour intensity is large, poor stability, and the accuracy of artificial regulatory is also not easy to grasp, and makes borehole pressure poor stability.
Along with the increase of deep-well, ultradeep well, high-pressure oil-gas well and the extensive use of balanced drilling technique; particularly; for finding, liberation, reservoir protec-tion and in the under balance pressure drilling that day by day comes into one's own; well-control equipment is as Timeliness coverage and controlling water kick; prevent blowout; petroleum resources is avoided to waste, the key equipment of proterctive equipment and personal safety.In recent years, drilling technology to the development of well-control equipment with use more and more higher, not only require there is safe and reliable, quick and flexible switch but also change features such as should possessing dynamic function, portable construction, easy to operate, integration operation.
At the multiple branch circuit choke manifold of patent publication No. a kind of automatic control disclosed in institute CN203271673U, comprise six to lead to, six logical and five-way A inlet communication, the outlet of five-way A is provided with four branch roads, Article 1, branch road is, manually parallel gate valve A, electric throttle valve A are communicated with threeway successively; Article 2 branch road is, manually parallel valve C, two-way A are communicated with five-way B successively; Article 3 branch road is, is communicated with successively by electrical parallel valve A with five-way B; Article 4 branch road is, is communicated with successively by electrodynamic balance valve B, electric throttle valve B, two-way B with five-way B.
Current choke manifold is applied to now in water conservancy abrasive perforating and is applied, hydraulic jet perforation operation obtains large scale application at straight well, horizontal well, need to control casing pressure in perforating process, conventional choke manifold adopts gate valve or needle-valve to carry out throttling usually, due to gate valve and needle-valve erosion wear resistance poor, especially in hydraulic jet perforation operation process, with a small amount of perforation sand in sleeve pipe returning fluid, serious to the erosion of gate valve or needle-valve, and pressure control effect is bad, one deck of usually often constructing at the scene just can damage a gate valve or needle-valve.
Summary of the invention
The object of the invention is: accurately can not control casing pressure to solve existing choke manifold when carrying out hydraulic jet perforation, and gate valve is due to the problem of the erosion well damage of load fluid, the invention provides and can control casing pressure, improve perforation efficiency and the special choke manifold of a kind of hydraulic jet perforation of corrosion resistance.
Technical scheme of the present invention is:
A kind of hydraulic jet perforation choke manifold, comprises the first pipeline four-way, the second pipeline four-way, is set side by side with the first flat gate valve, the 3rd flat gate valve and the 5th flat gate valve between described first pipeline four-way and the second pipeline four-way; Described first flat gate valve and the 5th flat gate valve are positioned at the both sides of the 3rd flat gate valve.
The first fixed restrictive valve is provided with between one end that described first flat gate valve is connected with the first pipeline four-way; Described 5th flat gate valve is provided with the 4th fixed restrictive valve between being connected with described first pipeline four-way.
The first pipeline threeway is connected with between one end that first fixed restrictive valve is connected with the first pipeline four-way, the three-terminal link of described first pipeline threeway has the second fixed restrictive valve, second fixed restrictive valve is connected with the second flat gate valve by the first pipeline two-way, and described second flat gate valve is connected to the first flat gate valve by threeway and is connected on the pipeline of one end with the second pipeline four-way.
Described second pipeline threeway is connected with between one end that 4th fixed restrictive valve is connected with the first pipeline four-way, the three-terminal link of described second pipeline threeway has the 3rd fixed restrictive valve, 3rd fixed restrictive valve is connected with the 4th flat gate valve by the second pipeline two-way, and described 4th flat gate valve is connected to the 5th flat gate valve by threeway and is connected on the pipeline of one end with the second pipeline four-way.
Technique effect of the present invention is:
The present invention is fixation type throttle mouth in the indoor design of hydraulic jet perforation manifold, achieves the accurate control to casing pressure, reduce the erosion of load fluid to gate valve, improve perforation efficiency by the flat gate valve that switch is different.Positive choke achieves and is convenient for changing, and has the advantages that abrasion-resistance is good.Not only can be used in coiled tubing hydraulic jet perforation, also can be applicable to oil pipe hydraulic jet perforation.
Be described in detail below with reference to accompanying drawing.
Accompanying drawing explanation
Fig. 1 is hydraulic jet perforation surface throttling manifold structural representation.
Reference numeral is as follows:
1. the first fixed restrictive valve; 2. the second fixed restrictive valve; 3. the 3rd fixed restrictive valve; 4. the 4th fixed restrictive valve; 5. manifold entrance; 6. manifold outlet; 7. the first flat gate valve; 8. the second flat gate valve; 9. the 3rd flat gate valve; 10. the 4th flat gate valve; 11. the 5th flat gate valves; 12. manifold pipelines; 13. first pipeline four-ways; 14. second pipeline four-ways; 15. first pipeline threeways; 16. second pipeline threeways; 17. first pipeline two-ways; 18. second pipeline two-ways.
Detailed description of the invention
Embodiment 1:
Because existing choke manifold accurately can not control casing pressure when carrying out hydraulic jet perforation, and gate valve is due to the problem of the erosion well damage of load fluid, and in order to overcome the problems referred to above, embodiment provides the special choke manifold of a kind of hydraulic jet perforation.
As shown in Figure 1, a kind of hydraulic jet perforation choke manifold, comprise the first pipeline four-way 13, second pipeline four-way 14, between described first pipeline four-way 13 and the second pipeline four-way 14, be set side by side with the first flat gate valve 7, the 3rd flat gate valve 9 and the 5th flat gate valve 11; Described first flat gate valve 7 and the 5th flat gate valve 11 are positioned at the both sides of the 3rd flat gate valve 9.
The first fixed restrictive valve 1 is provided with between one end that described first flat gate valve 7 is connected with the first pipeline four-way 13; Described 5th flat gate valve 11 is provided with the 4th fixed restrictive valve 4 between being connected with described first pipeline four-way 13.
The first pipeline threeway 15 is connected with between one end that first fixed restrictive valve 1 is connected with the first pipeline four-way 13, the three-terminal link of described first pipeline threeway 15 has the second fixed restrictive valve 2, second fixed restrictive valve 2 is connected with the second flat gate valve 8 by the first pipeline two-way 17, and described second flat gate valve 8 is connected to the first flat gate valve 7 by threeway and is connected on the pipeline 12 of one end with the second pipeline four-way 14.
Described second pipeline threeway 16 is connected with between one end that 4th fixed restrictive valve 4 is connected with the first pipeline four-way 13, the three-terminal link of described second pipeline threeway 16 has the 3rd fixed restrictive valve 3,3rd fixed restrictive valve 3 is connected with the 4th flat gate valve 10 by the second pipeline two-way 18, and described 4th flat gate valve 10 is connected to the 5th flat gate valve 11 by threeway and is connected on the pipeline 12 of one end with the second pipeline four-way 14.
First pipeline four-way 13 upper end is connected with manifold entrance 5, and the second pipeline four-way 14 lower end exports 6 with manifold and is connected.
There are 4 groups of fixation type throttle valves built with the flow nipple of different size, control the pressure of hydraulic jet perforation process middle sleeve by opening or close different flat gate valve combinations.
Wherein, needs are controlled, at the first fixed restrictive valve 1 according to field hydraulic abrasive perforating discharge capacity and sleeve pipe back pressure, second fixed restrictive valve 2,3rd fixed restrictive valve the 3, four fixed restrictive valve 4 inside installs the flow nipple of different size respectively, during abrasive perforating, close the 3rd flat gate valve 9, by switch first flat gate valve 7, second flat gate valve the 8, four flat gate valve 10,5th flat gate valve 11 pairs casing pressure accurately controls, and prevents superpressure or hypotony from affecting perforating quality.
After perforation completes, all flat gate valves of closedown carry out pressure break, after pressure terminates, carry out throttling blowout prevention by opening different flat gate valves.
Embodiment 2:
On basis based on embodiment 1, application mode of the present invention is:
(1), first manifold entrance 5 is connected with wellhead casing pipe gate valve;
(2), open the first flat gate valve 7, second flat gate valve the 8, four flat gate valve the 10, five flat gate valve 11, close the 3rd flat gate valve 9;
(3), choke pressure is tested, oil pipe infusion is carried out according to perforation displacement requirements, test suite pipe pressure, if casing pressure is less than design pressure, select closedown first flat gate valve 7, second flat gate valve the 8, four flat gate valve 10 as required, any one or more in 5th flat gate valve 11, until casing pressure reaches designing requirement.
(4) if casing pressure is greater than design pressure, stop infusion, according to pressure size, change any one or more choke size in the first flat gate valve 7, second flat gate valve the 8, four flat gate valve the 10, five flat gate valve 11 4 flat gate valves.
(5), again carry out choke pressure test, method is with (3).
(6), hydraulic jet perforation is carried out, if perforation discharge capacity adjusts in perforating process, adjustment first flat gate valve 7 can be passed through, second flat gate valve 8,4th flat gate valve 10, any one or more in 5th flat gate valve 11 carry out casing pressure control, until meet on-the-spot casing pressure control overflow.
(7), after perforation terminates, close cover sluice valve, carry out pressing crack construction.
(8), after pressure break terminates, open cover sluice valve, close the 3rd flat gate valve 9, carry out throttling open flow by open in the first flat gate valve 7, second flat gate valve the 8, four flat gate valve the 10, five flat gate valve 11 any one or more.
The present invention relates to the underground work field operation fields such as formation testing gas, fracture acidizing, being mainly used in open flow operation after hydraulic jet perforation, pressure break, is one of hydraulic jet perforation process corollary apparatus.Not only can be applied in coiled tubing hydraulic jet perforation process, also can be widely used in open flow operation after oil pipe abrasive perforating, pressure break.
Claims (4)
1. a hydraulic jet perforation choke manifold, it is characterized in that: comprise the first pipeline four-way (13), the second pipeline four-way (14), between described first pipeline four-way (13) and the second pipeline four-way (14), be connected with the first flat gate valve (7) parallel with one another, the 3rd flat gate valve (9) and the 5th flat gate valve (11) by pipeline; Described first flat gate valve (7) and the 5th flat gate valve (11) are positioned at the both sides of the 3rd flat gate valve (9).
2. a kind of hydraulic jet perforation choke manifold according to claim 1, is characterized in that:
The first fixed restrictive valve (1) is provided with between one end that described first flat gate valve (7) is connected with the first pipeline four-way (13); Described 5th flat gate valve (11) is provided with the 4th fixed restrictive valve (4) between being connected with described first pipeline four-way (13).
3. a kind of hydraulic jet perforation choke manifold according to claim 1 and 2, it is characterized in that: between one end that the first fixed restrictive valve (1) is connected with the first pipeline four-way (13), be connected with the first pipeline threeway (15), the three-terminal link of described first pipeline threeway (15) has the second fixed restrictive valve (2), second fixed restrictive valve (2) is connected with the second flat gate valve (8) by the first pipeline two-way (17), described second flat gate valve (8) is connected to the first flat gate valve (7) by threeway and is connected on the pipeline (12) of one end with the second pipeline four-way (14).
4. a kind of hydraulic jet perforation choke manifold according to claim 1 and 2, it is characterized in that: between one end that the 4th fixed restrictive valve (4) is connected with the first pipeline four-way (13), be connected with described second pipeline threeway (16), the three-terminal link of described second pipeline threeway (16) has the 3rd fixed restrictive valve (3), 3rd fixed restrictive valve (3) is connected with the 4th flat gate valve (10) by the second pipeline two-way (18), described 4th flat gate valve (10) is connected to the 5th flat gate valve (11) by threeway and is connected on the pipeline (12) of one end with the second pipeline four-way (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410717724.8A CN104405346B (en) | 2014-12-02 | 2014-12-02 | A kind of hydraulic jet perforation choke manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410717724.8A CN104405346B (en) | 2014-12-02 | 2014-12-02 | A kind of hydraulic jet perforation choke manifold |
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| Publication Number | Publication Date |
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| CN104405346A true CN104405346A (en) | 2015-03-11 |
| CN104405346B CN104405346B (en) | 2017-06-13 |
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| CN201410717724.8A Active CN104405346B (en) | 2014-12-02 | 2014-12-02 | A kind of hydraulic jet perforation choke manifold |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626004A (en) * | 2016-03-03 | 2016-06-01 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Blowout erosion-resistant throttle manifold for oil and gas wells |
| CN106401511A (en) * | 2016-10-28 | 2017-02-15 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | High-pressure filtering throttle manifold and filtering throttling method thereof |
| CN111577240A (en) * | 2020-04-24 | 2020-08-25 | 洲际海峡能源科技有限公司 | Wireless centralized control system of well drilling well control equipment |
| CN116591644A (en) * | 2023-07-17 | 2023-08-15 | 大庆市天德忠石油科技有限公司 | Hydraulic sand blasting perforation choke manifold |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626004A (en) * | 2016-03-03 | 2016-06-01 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Blowout erosion-resistant throttle manifold for oil and gas wells |
| CN105626004B (en) * | 2016-03-03 | 2017-12-15 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of Oil/gas Well open flow erosion resistance choke manifold |
| CN106401511A (en) * | 2016-10-28 | 2017-02-15 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | High-pressure filtering throttle manifold and filtering throttling method thereof |
| CN106401511B (en) * | 2016-10-28 | 2019-02-19 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of high-pressure filteration choke manifold and its filtering throttling method |
| CN111577240A (en) * | 2020-04-24 | 2020-08-25 | 洲际海峡能源科技有限公司 | Wireless centralized control system of well drilling well control equipment |
| CN116591644A (en) * | 2023-07-17 | 2023-08-15 | 大庆市天德忠石油科技有限公司 | Hydraulic sand blasting perforation choke manifold |
| CN116591644B (en) * | 2023-07-17 | 2023-09-19 | 大庆市天德忠石油科技有限公司 | Hydraulic sand blasting perforation choke manifold |
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Effective date of registration: 20201029 Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Address before: 710018 Shaanxi province Xi'an Weiyang Changqing Changqing prosperous Park District Building Room 1207 Patentee before: CHANGQING DOWNHOLE TECHNOLOGY OPERATION COMPANY OF CNPC CHUANQING DRILLING ENGINEERING Co.,Ltd. |
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