CN202250058U - Short-time pressure control formation testing process pipe string - Google Patents
Short-time pressure control formation testing process pipe string Download PDFInfo
- Publication number
- CN202250058U CN202250058U CN2011204118273U CN201120411827U CN202250058U CN 202250058 U CN202250058 U CN 202250058U CN 2011204118273 U CN2011204118273 U CN 2011204118273U CN 201120411827 U CN201120411827 U CN 201120411827U CN 202250058 U CN202250058 U CN 202250058U
- Authority
- CN
- China
- Prior art keywords
- ball valve
- alignment pin
- guide rail
- transposition
- power piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a short-time pressure control formation testing process pipe string. The short-time pressure control formation testing process pipe string is mainly used for solving the problems of inconvenience in working and greater workload caused by continuously keeping pressure for annulus during well opening operation. The short-time pressure control formation testing process pipe string is characterized in that a tester (17) is connected between an upper joint (24) and a lower joint (25). The short-time pressure control formation testing process pipe string can complete well opening and closing operation without moving the pipe string, annulus pressure-building and pressure relief can ensure opening and closing states by locking of a position-changing device of a tester after setting through a packer, the construction is simple and reliable, and accurate test information can be obtained.
Description
Technical field
The utility model relates to a kind of dst technology tubing string in the oil field prospecting exploitation formation testing field, particularly a kind of voltage-controlled in short-term dst technology tubing string.
Background technology
In the formation testing field of oil field prospecting, exploitation; The early stage APR tester of producing with the U.S. is mainly prolonged at present to dst technology in the oil field, in the test process, needs to keep continuously annular pressure; Often occur that annular space or well head leak and can not voltage stabilizing, cause the tester cisco unity malfunction; Suppress pipeline and be prone to freeze when testing winter, causes cisco unity malfunction or construction accident; Continuously pressurize construction working amount is big, causes the appearance of doing over again easily, has both increased operating expenses, has prolonged the formation testing cycle again.
Summary of the invention
The utility model technical problem to be solved is to overcome that annular space in the operating process that drives a well that exists in the background technology keep-ups pressure continuously and the work inconvenience that brings, the problem that workload is bigger; And a kind of voltage-controlled in short-term dst technology tubing string is provided; This voltage-controlled in short-term dst technology tubing string fixed tubular column is accomplished the operation of switch well; Behind the packer setting, annular space is suppressed the locking of pressure release through the tester transposer, guarantees the open and close state; It is simple and reliable to construct, and the test data of acquisition is accurate.
The utility model solves its problem and can reach through following technical scheme: this voltage-controlled in short-term dst technology tubing string comprises oil pipe, top connection, lower contact, cuts off packer, electronic pressure gauge, screen casing, blind joint, packer and monitoring electronic pressure gauge; Lower contact, cut off packer, electronic pressure gauge, screen casing, blind joint, packer and the monitoring electronic pressure gauge connects successively from top to bottom; Oil pipe connects top connection, is connected tester between described top connection and lower contact.
Described tester comprises ball valve, nitrogen chamber, ball valve shell, connector, power piston, transposition axle; Ball valve shell top inner chamber card has ball valve seat up and down, is equipped with ball valve up and down between ball valve seat, and there is the ball valve pull lever side of ball valve, and ball valve pull lever and ball valve shell are slidingly connected; Ball valve pull lever lower end is fixedly connected the upper end of transposition axle, and the lower end of transposition axle is fixedly connected power piston, and power piston lower end and power piston cylinder sleeve are slidingly connected; The ball valve shell bottom connects the power piston cylinder sleeve through connector, and the power piston bottom is equipped with nitrogen chamber, and transposition axle middle part is fixedly connected alignment pin; The cylindrical cover permutated bits guide rail of transposition axle; The transposition guide rail radially divides two parts up and down along W type track, is contained in the alignment pin upper-lower position respectively, and alignment pin moves along the W track; Transposition guide rail two parts up and down is contained in the guide rail fixed cover, and the guide rail fixed cover places ball valve shell inboard; The upper surface of transposition guide rail is supported on respectively on the interior step of ball valve shell, and the lower surface of transposition guide rail is supported on the upper surface of connector; On the power piston cylinder sleeve inlet is arranged; Alignment pin in the W track during through the alignment pin top dead centre, alignment pin centre position, alignment pin lower dead center, mobile between alignment pin top dead centre and alignment pin lower dead center.
The utility model and above-mentioned background compared with techniques can have following beneficial effect: this voltage-controlled in short-term dst technology tubing string is owing to adopt said structure, and annular space is suppressed the locking of pressure release through the tester transposer, guarantees the open and close state; Thereby guarantee that construction is simple and reliable, obtain accurate test data.This switch well operation can not receive annular space or well head leakage contribution; In the time of can not receiving to test winter, suppress pipeline, the equipment of suppressing is prone to the frozen influence; Simultaneously, this tubing string switch well is simple to operate, easy to control, and workload is little, and success rate is high, and the test data high-quality is accurate.
Description of drawings:
Accompanying drawing 1 is the structural representation of the utility model;
Accompanying drawing 2 is tester ball valve closed condition sketch mapes of the utility model;
Accompanying drawing 3 is tester ball valve opening sketch mapes of the utility model;
Accompanying drawing 4 is deployed configuration sketch mapes of the utility model transposition guide rail.
Among the figure: 1-ball valve, 2-ball valve shell, 3-ball valve pull lever, the 4-axle that replaces, the 5-guide rail that replaces; The 6-alignment pin, 7-guide rail fixed cover, 8-connector, 9-inlet, 10-power piston cylinder sleeve; The 11-power piston, 12-nitrogen chamber, 13-alignment pin top dead centre, 14-alignment pin centre position, 15-alignment pin lower dead center; The 16-oil pipe, the 17-tester, 18-cuts off packer, 19-electronic pressure gauge, 20-screen casing; The 21-blind joint, the 22-packer, 23-monitors electronic pressure gauge, 24-top connection, 25-lower contact.
The specific embodiment:
To be described further the utility model below in conjunction with accompanying drawing:
As shown in Figure 1; This voltage-controlled in short-term dst technology tubing string comprises oil pipe 16, top connection 24, lower contact 25, cuts off packer 18, electronic pressure gauge 19, screen casing 20, blind joint 21, packer 22 and monitoring electronic pressure gauge 23; Lower contact 25, cut off packer 18, electronic pressure gauge 19, screen casing 20, blind joint 21, packer 22 and monitoring electronic pressure gauge 23 connects successively from top to bottom; Oil pipe 16 connects top connection 24, and described top connection 24 is connected tester 17 with 25 of lower contacts.
Described tester 17 comprises ball valve 1, nitrogen chamber 12, ball valve shell 2, connector 8, power piston 11, transposition axle 4; Ball valve shell 2 top inner chamber cards have ball valve seat up and down, are equipped with ball valve 1 up and down between ball valve seat, and there is ball valve pull lever 3 side of ball valve 1, and ball valve pull lever 3 is slidingly connected with ball valve shell 2; Ball valve pull lever 3 lower ends are fixedly connected the upper end of transposition axle 4, and the lower end of transposition axle 4 is fixedly connected power piston 11, and power piston 11 lower ends and power piston cylinder sleeve 10 are slidingly connected; Ball valve shell 2 bottoms connect power piston cylinder sleeve 10 through connector 8, and power piston 11 bottoms are equipped with nitrogen chamber 12, and transposition axle 4 middle parts are fixedly connected alignment pin 6; The cylindrical cover permutated bits guide rail 5 of transposition axle 4; Transposition guide rail 5 radially divides two parts up and down along W type track, is contained in alignment pin 6 upper-lower positions respectively, and alignment pin 6 moves along the W track; The transposition guide rail about in the of 5 two parts be contained in the guide rail fixed cover 7, guide rail fixed cover 7 places ball valve shell 2 inboards; The upper surface of transposition guide rail 5 is supported on respectively on the interior step of ball valve shell 2, and the lower surface of transposition guide rail 5 is supported on the upper surface of connector 8; Inlet 9 is arranged on the power piston cylinder sleeve 10; Alignment pin 6 in the W track during through alignment pin top dead centre 13, alignment pin centre position 14, alignment pin lower dead center 15, mobile 15 of alignment pin top dead centre 13 and alignment pin lower dead center.
Like accompanying drawing 2, Fig. 3, shown in Figure 4, when this pressure-controlled dst technology tubing string used, this tubing string part of 12 of ball valve 1 and nitrogen chamber in tester was a transposer; Described transposer is when annular space is suppressed; Pressure gets into from inlet 9, and force power piston 11 moves down, and power piston 11 pulling transposition axles 4 and alignment pin 6 move down; Alignment pin 6 is displaced downwardly to alignment pin lower dead center 15 by alignment pin top dead centre 13; Alignment pin 6 promotes transposition guide rail 5 and rotates to an angle by fixed-direction, and simultaneously, transposition axle 4 pulling ball valve pull lever 3 move down opens ball valve 1; During the annular space pressure release; Move on nitrogen propulsion power piston 11, transposition axle 4, the alignment pin 6; Alignment pin 6 promotes transposition guide rails 5 to be continued to rotate to an angle by fixed-direction, and alignment pin 6 moves 14 backs, certain distance to alignment pin centre position by 5 restrictions of transposition guide rails in the W type track of transposition guide rail 5, can not on move; Under the effect of nitrogen, ball valve remains on stable opening.As shown in Figure 3.
When annular space is suppressed once more, repeat above-mentioned action, alignment pin 6 is displaced downwardly to alignment pin lower dead center 15 by alignment pin centre position 14; Alignment pin 6 promotes transposition guide rail 5 and rotates to an angle by fixed-direction, during pressure release, moves on nitrogen propulsion power piston 11, transposition axle 4, the alignment pin 6; Alignment pin 6 promotes transposition guide rails 5 to be continued to rotate to an angle by fixed-direction, transposition guide rail 5 change positions, and alignment pin 6 moves to alignment pin top dead centre 13 on by alignment pin lower dead center 15 in the W type track of transposition guide rail 5; Ball valve is closed; Under the effect of nitrogen, ball valve remains on stable closed condition, and is as shown in Figure 2.
Through the suppressing of annular space, pressure release, ball valve obtains stable unlatching or closed condition, and can implement circulation and open and close; Realize that not needing annular space to keep-up pressure obtains the stable opening of ball valve.
Claims (2)
1. voltage-controlled in short-term dst technology tubing string; Comprise oil pipe (16), top connection (24), lower contact (25), cut off packer (18), electronic pressure gauge (19), screen casing (20), blind joint (21), packer (22) and monitoring electronic pressure gauge (23); Lower contact (25), cut off packer (18), electronic pressure gauge (19), screen casing (20), blind joint (21), packer (22) and monitoring electronic pressure gauge (23) connects successively from top to bottom; Oil pipe (16) connects top connection (24), it is characterized in that: be connected tester (17) between described top connection (24) and lower contact (25).
2. voltage-controlled in short-term dst technology tubing string according to claim 1 is characterized in that: described tester (17) comprises ball valve (1), nitrogen chamber (12), ball valve shell (2), connector (8), power piston (11), transposition axle (4); Ball valve shell (2) top inner chamber card has ball valve seat up and down, is equipped with ball valve (1) up and down between ball valve seat, and there is ball valve pull lever (3) side of ball valve (1), and ball valve pull lever (3) is slidingly connected with ball valve shell (2); Ball valve pull lever (3) lower end is fixedly connected the upper end of transposition axle (4); The lower end of transposition axle (4) is fixedly connected power piston (11), and power piston (11) lower end and power piston cylinder sleeve (10) are slidingly connected, and ball valve shell (2) bottom connects power piston cylinder sleeve (10) through connector (8); Power piston (11) bottom is equipped with nitrogen chamber (12); Transposition axle (4) middle part is fixedly connected alignment pin (6), the cylindrical cover permutated bits guide rail (5) of transposition axle (4), and transposition guide rail (5) radially divides two parts up and down along W type track; Be contained in alignment pin (6) upper-lower position respectively; Alignment pin (6) moves along the W track, and transposition guide rail (5) two parts up and down is contained in the guide rail fixed cover (7), and guide rail fixed cover (7) places ball valve shell (2) inboard; The upper surface of transposition guide rail (5) is supported on respectively on the interior step of ball valve shell (2), and the lower surface of transposition guide rail (5) is supported on the upper surface of connector (8); Inlet (9) is arranged on the power piston cylinder sleeve (10); Alignment pin (6) in the W track through alignment pin top dead centre when (13), alignment pin centre position (14), alignment pin lower dead center (15), mobile between alignment pin top dead centre (13) and alignment pin lower dead center (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204118273U CN202250058U (en) | 2011-10-25 | 2011-10-25 | Short-time pressure control formation testing process pipe string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204118273U CN202250058U (en) | 2011-10-25 | 2011-10-25 | Short-time pressure control formation testing process pipe string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202250058U true CN202250058U (en) | 2012-05-30 |
Family
ID=46111317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204118273U Expired - Fee Related CN202250058U (en) | 2011-10-25 | 2011-10-25 | Short-time pressure control formation testing process pipe string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202250058U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952672A (en) * | 2017-05-18 | 2018-12-07 | 中国石油天然气股份有限公司 | The drillstem test tubing string and application method of motionless drilling tool |
| CN110566157A (en) * | 2019-09-16 | 2019-12-13 | 宝鸡畅油石油设备有限公司 | Ball valve type oil pipe pressure testing valve |
| CN112855117A (en) * | 2021-01-14 | 2021-05-28 | 大庆油田有限责任公司 | High-durability and readable-back wireless radio frequency downhole multilayer test pipe column |
| CN115929294A (en) * | 2023-03-13 | 2023-04-07 | 大庆市璞庆钻采设备制造有限公司 | General trial production tool for operation |
-
2011
- 2011-10-25 CN CN2011204118273U patent/CN202250058U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952672A (en) * | 2017-05-18 | 2018-12-07 | 中国石油天然气股份有限公司 | The drillstem test tubing string and application method of motionless drilling tool |
| CN110566157A (en) * | 2019-09-16 | 2019-12-13 | 宝鸡畅油石油设备有限公司 | Ball valve type oil pipe pressure testing valve |
| CN112855117A (en) * | 2021-01-14 | 2021-05-28 | 大庆油田有限责任公司 | High-durability and readable-back wireless radio frequency downhole multilayer test pipe column |
| CN115929294A (en) * | 2023-03-13 | 2023-04-07 | 大庆市璞庆钻采设备制造有限公司 | General trial production tool for operation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202250058U (en) | Short-time pressure control formation testing process pipe string | |
| CN103573239B (en) | The using method of segmented fracturing device and this device | |
| CN102518418A (en) | Unlimited layer fracturing process | |
| CN103114843A (en) | Multi-layer multi-section continuous oil testing system without lifting tubular column and operation method thereof | |
| CN204532322U (en) | A kind of horizontal well desirable core sliding sleeve multistage fracturing completion tubular column | |
| CN103089205A (en) | Two-channel oil extraction switch | |
| CN104695929A (en) | Multistage fracturing well completion pipe string with coring sliding sleeve for horizontal well | |
| CN204113601U (en) | A kind of double fluid is to oil well pump | |
| CN201723198U (en) | Two-way opening pressure differential sliding sleeve | |
| CN109441419B (en) | Oil gas reservoir secondary transformation tubular column | |
| CN203008883U (en) | Steam injection oil production technique pipe column | |
| CN203214025U (en) | Layered oil extraction pipe string | |
| CN104727796A (en) | Construction method of horizontal well core-withdrawable sliding sleeve multistage fracturing completion pipe string | |
| CN209586328U (en) | The voltage-controlled cycling switch valve in elastic claw underground built in a kind of sand control | |
| CN203050653U (en) | Two-channel oil extraction pipe column | |
| CN204572406U (en) | A kind of rod pump equipment for coal-bed gas exploitation | |
| CN203961936U (en) | A kind of thermal recovery card envelope instrument of sand control stop-off steam injection | |
| CN208040300U (en) | A kind of coal mine gas extraction drill hole device | |
| CN202338290U (en) | Gas lifting and completion Integrated tubular column with dual packers | |
| CN202659150U (en) | Spiral base-expanding integral drill | |
| CN201747328U (en) | Underground layered test switch | |
| CN108476735A (en) | A kind of double plate separate type woods fruit recovering devices of carpopodium locking | |
| CN201517388U (en) | Underground warning paraffin prevention and blockage removing choke holder | |
| CN204457757U (en) | A kind of zonal pressure test macro | |
| CN201412111Y (en) | Well cementing sliding sleeve device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20201025 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |