CN202946121U - Integrated perforation, acid fracturing, pilot production and seal coat tubular column - Google Patents
Integrated perforation, acid fracturing, pilot production and seal coat tubular column Download PDFInfo
- Publication number
- CN202946121U CN202946121U CN 201220698170 CN201220698170U CN202946121U CN 202946121 U CN202946121 U CN 202946121U CN 201220698170 CN201220698170 CN 201220698170 CN 201220698170 U CN201220698170 U CN 201220698170U CN 202946121 U CN202946121 U CN 202946121U
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- tubular column
- valve
- perforation
- pressure
- acid fracturing
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Abstract
The utility model discloses an integrated perforation, acid fracturing, pilot production and seal coat tubular column which comprises a downhole safety valve, a flexible expansion joint, a pressure gauge support barrel, a positioning short joint, an anchoring seal, a permanent inserting tube isolator, a sliding sleeve valve, a blind joint, a sieving tube, a pressure building ignition head, a perforation gun and a decompression chamber which are sequentially arranged on a tube body from top to bottom and are communicated inside the tube body, and as well as a ball seat, wherein a pressure gauge is arranged inside the pressure gauge support barrel; and the ball seat is arranged inside the tube body between the permanent inserting tube isolator and the sliding sleeve valve. The improvement of the tubular column is that working of perforation, acid fracturing, pilot production and seal coat can be realized in one tubular column; due to the design that the permanent inserting tube isolator and the sliding sleeve valve are matched for used in match, the seal coat function is realized; due to the design of the downhole safety valve, the safety in ground construction is ensured; working by using fixed steel wires, the downhole temperature and pressure measurement is realized, and the insecurity of a shaft port is reduced; due to the effect of the flexible expansion joint, the flexible deformation of the tubular column caused by stress is reduced, the safety of the tubular column is ensured, and at the same time the influence on the sealing capability of the isolator is reduced.
Description
Technical field
The utility model relates to a kind of novel technique column of a kind of Oil/gas Well formation testing (gas) technical field, a kind of formation testing test jobs that is used in the various oil gas water wells in oil field particularly, but one-trip string is realized the perforation-acid fracturing of perforation, acid fracturing, pilot production and seal operation-pilot production-seal integrated pipe column.
Background technology
In existing integrated pipe column technology, " perforation-MFE test-hydraulic jet pump discharge opeing " connection is made tubing string, and " perforation-test-acid fracturing-discharge opeing " join and to make tubing string, and due to its process structure, there are the following problems:
1, the existing packer of doing in tubing string, the slip-type packer that mostly adopts rotation to set, all need to utilize the load of the tubing string compression packing element that pressurizes to realize sealing, if the inadequate packing element compression of tubing string compression load is not in place, can't realize effectively sealing, its sealing reliability is not strong, and can't realize staying the purpose of well seal.
2, the existing tubing string of doing is in case when the thorn leakage occurs the well head production tree, can't guarantee the safety of ground construction.So be not suitable for formation testing (gas) and the production testing operation of high pressure, high sour well.
3, the existing tubing string of doing can't directly be realized seal after the formation testing test finishes, and need to trip out connection and make tubing string, and lower tubular column is annotated ash or beaten the bridging plug seal again.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of formation testing test jobs that is used in the various oil gas water wells in oil field, but one-trip string is realized the perforation-acid fracturing of perforation, acid fracturing, pilot production and seal operation-pilot production-seal integrated pipe column.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of perforation-acid fracturing-pilot production-seal integrated pipe column, comprise body, storm valve, flexible compensation joint, in manometric manometer, orientation spool, grappling sealing, permanent insertion pipe packer, ball seat, Valve with sliding bush, blind joint, screen casing, the igniter head that builds the pressure, perforating gun, pressure-releasing chamber are housed; Be disposed with from top to bottom on described body the described storm valve that is communicated with in this body, flexible compensation joint, in manometric manometer, orientation spool, grappling sealing, permanent insertion pipe packer, Valve with sliding bush, blind joint, screen casing, the igniter head that builds the pressure, perforating gun, pressure-releasing chamber are housed; Described ball seat is arranged in body between described permanent insertion pipe packer and Valve with sliding bush.
Improvement of the present utility model is by being used in conjunction with instruments such as permanent insertion pipe packer, Valve with sliding bush and perforating guns, but one-trip string is realized perforation, acid fracturing, pilot production and seal operation.Be designed with permanent insertion pipe packer and Valve with sliding bush and support the use, can realize the seal effect; Be designed with storm valve, can guarantee ground construction safety; Motionless steel wire operation can be realized down-hole thermometric pressure measurement, reduces the insecurity of well head; The use of flexible compensation joint can reduce the dilatation of the stressed generation of tubing string, has also reduced the impact on packer sealing when guaranteeing tubing string safety.
Description of drawings
The structural representation of perforation-acid fracturing that Fig. 1 provides for the utility model-pilot production-seal integrated pipe column;
The local enlarged diagram of perforation-acid fracturing that Fig. 2 provides for the utility model-pilot production-seal integrated pipe column.
The specific embodiment
From the utility model embodiment illustrated in figures 1 and 2 as can be known:
The utility model perforation-acid fracturing-pilot production-seal integrated pipe column, comprise body, storm valve 1, flexible compensation joint 2, in manometric manometer 3, orientation spool 4, grappling sealing 5, permanent insertion pipe packer 6, ball seat 7, Valve with sliding bush 8, blind joint 9, screen casing 10, the igniter head 11 that builds the pressure, perforating gun 12, pressure-releasing chamber 13 are housed; Be disposed with from top to bottom on body the storm valve 1 that is communicated with in this body, flexible compensation joint 2, in manometric manometer 3, orientation spool 4, grappling sealing 5, permanent insertion pipe packer 6, Valve with sliding bush 8, blind joint 9, screen casing 10, the igniter head 11 that builds the pressure, perforating gun 12, pressure-releasing chamber 13 are housed; Ball seat 7 is arranged in body between permanent insertion pipe packer 6 and Valve with sliding bush 8.
The Specific construction use procedure is as follows:
The utility model " perforation-acid fracturing-pilot production-seal integrated pipe column " is hereinafter to be referred as " tubing string ", and " permanent insertion pipe packer 6 " is hereinafter to be referred as " packer 6 ".
With perforating gun 12 and each kit with precalculated position under the oil pipe lower going-into-well, Valve with sliding bush 8 below packer 6 is in open mode, this moment, oil jacket was communicated with, utilize orientation spool 4 school of logging well dark, adjust tubing string, base sealed packer 6 is suppressed in pitching, anti-checking sealing of packer 6 sealings of suppressing of sleeve pipe, verify qualified after, oil pipe boosts and destroys ball seat 7, ball seat and ball drop down onto in blind joint 9, the oil pipe pressurization, igniter head 11 igniting perforations that build the pressure, pressure-releasing chamber 13 can release the high pressure of perforation moment generation, guarantee the sealingly secure of packer 6, after perforation, product is asked in blowing.If do not spray after perforation, can directly carry out the construction of acid fracturing measures to reform by fixed tubular column, directly carry out pilot production after acid fracturing.
Flexible compensation on tubing string joint 2 can compensate tubing string suppress the process such as set, perforation, acid fracturing, open flow are asked product in tubing string because of the caused dilatation of the variation of pressure and temperature, having prevented that oil pipe is disconnected takes off or packer 6 loses envelope.
Surface shut-in after test finishes utilizes the pressure gauge in pressure bomb holder cylinder 3 to carry out pressure measurement.Forward extrusion well after pressure measurement is closed storm valve 1, and the upper lifting pipe post is extracted grappling sealing 5 and taken central tube out of, close Valve with sliding bush 8, namely closed the oil jacket communicating passage, Valve with sliding bush 8 coordinated with the packer 6 that has set and realized the sealing stratum this moment, circulated to trip out the interior tubing string of well after washing kill-job.
In sum, content of the present utility model is not limited in the above-described embodiments, and those skilled in the art can propose other embodiment easily according to guiding theory of the present utility model, within these embodiments all are included in scope of the present utility model.
Claims (1)
1. perforation-acid fracturing-pilot production-seal integrated pipe column, comprise body, storm valve (1), flexible compensation joint (2), in manometric manometer (3), orientation spool (4), grappling sealing (5), permanent insertion pipe packer (6), ball seat (7), Valve with sliding bush (8), blind joint (9), screen casing (10), the igniter head that builds the pressure (11), perforating gun (12), pressure-releasing chamber (13) are housed; It is characterized in that: described body be disposed with from top to bottom the described storm valve (1) that is communicated with in this body, flexible compensation joint (2), in manometric manometer (3), orientation spool (4), grappling sealing (5), permanent insertion pipe packer (6), Valve with sliding bush (8), blind joint (9), screen casing (10), the igniter head that builds the pressure (11), perforating gun (12), pressure-releasing chamber (13) are housed; Described ball seat (7) is arranged in body between described permanent insertion pipe packer (6) and Valve with sliding bush (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220698170 CN202946121U (en) | 2012-12-17 | 2012-12-17 | Integrated perforation, acid fracturing, pilot production and seal coat tubular column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220698170 CN202946121U (en) | 2012-12-17 | 2012-12-17 | Integrated perforation, acid fracturing, pilot production and seal coat tubular column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946121U true CN202946121U (en) | 2013-05-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220698170 Expired - Fee Related CN202946121U (en) | 2012-12-17 | 2012-12-17 | Integrated perforation, acid fracturing, pilot production and seal coat tubular column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946121U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500084A (en) * | 2019-08-30 | 2019-11-26 | 中国石油集团川庆钻探工程有限公司 | A kind of formation testing completion integral method |
| CN113586017A (en) * | 2021-08-31 | 2021-11-02 | 中国石油天然气股份有限公司 | Perforating and sand-preventing integrated pipe column suitable for volcanic reservoir and using method |
| CN114607344A (en) * | 2020-12-03 | 2022-06-10 | 中国石油天然气股份有限公司 | Acid fracturing integrated pipe column and acid fracturing method |
-
2012
- 2012-12-17 CN CN 201220698170 patent/CN202946121U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500084A (en) * | 2019-08-30 | 2019-11-26 | 中国石油集团川庆钻探工程有限公司 | A kind of formation testing completion integral method |
| CN114607344A (en) * | 2020-12-03 | 2022-06-10 | 中国石油天然气股份有限公司 | Acid fracturing integrated pipe column and acid fracturing method |
| CN113586017A (en) * | 2021-08-31 | 2021-11-02 | 中国石油天然气股份有限公司 | Perforating and sand-preventing integrated pipe column suitable for volcanic reservoir and using method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201211 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: 300457 Tianjin Binhai New Area Development Zone Huanghai Road 106 Bohai Drilling Engineering Co., Ltd. science and Technology Development Office Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20211217 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |