CN201292843Y - Dropping and fetching downhole pressure measuring unit - Google Patents
Dropping and fetching downhole pressure measuring unit Download PDFInfo
- Publication number
- CN201292843Y CN201292843Y CNU2008201233846U CN200820123384U CN201292843Y CN 201292843 Y CN201292843 Y CN 201292843Y CN U2008201233846 U CNU2008201233846 U CN U2008201233846U CN 200820123384 U CN200820123384 U CN 200820123384U CN 201292843 Y CN201292843 Y CN 201292843Y
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- pressure
- urceolus
- plug
- stifled
- pulling
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Abstract
The utility model relates to a delivery underground pressure measuring unit which overcomes the defects that the prior test oil measuring unit has longer pressure measuring time and poor layer parameter accuracy, can not realize that a test layer can be directly implemented with the fraction reconstruction by three times without moving a test tube, can not simultaneously measure the layer fluid pressure and the static pressure during the exhaust, and the like. The delivery underground pressure measuring unit comprises an upper joint (1), an outer cylinder (7), a pressure meter supporting cylinder (23) and a pressure meter (27), wherein the upper joint (1) is fixedly connected with the outer cylinder (7), a dropping and fishing assembly (21), a check valve (22) and the pressure meter supporting cylinder (23) are sequentially fixedly connected from top to bottom, the dropping and fishing assembly (21) and the check valve (22) are positioned in the outer cylinder (7), and the upper end surface of an inner hole lug boss (29) of the outer cylinder (7) is axially positioned. The utility model has reasonable design and simple structure, can reduce times of pulling and falling tubes and columns and washing a pressure well during the test oil exhaust and the measure reconstruction, shortens the construction period, lowers the operation cost, and is beneficial to the oil gas layer protection and the environment protection.
Description
Affiliated technical field
The utility model relates to a kind of formation testing testing arrangement of oil exploitation, especially relates to a kind of throwing modus ponens testing pressure down hole device.
Background technology
At present, the down-hole formation testing manometric technique of application mainly contains " steel wire (or cable) is thrown in pressure gauge bottomhole pressure survey technology ", " dst technology technology such as MFE, APR " and " hydraulic jet pump discharge opeing pressure measurement technology ".
Steel wire (or cable) is thrown in pressure gauge bottomhole pressure survey technology, by steel wire pressure gauge is sent into the shaft bottom from the well head production tree, closes well head and carries out bottomhole pressure survey; Pressure gauge after finishing, is proposed in pressure measurement.Though this technology can measure bottom pressure and temperature, when pressure measurement, can not carry out other operation simultaneously, it is big to make that from wellhead shut-in pit shaft stores up effect, pressure measurement time length and the formation parameter poor accuracy of being explained.
" dst technology technology such as MFE, APR " can realize the downhole closing pressure measurement.Its process unit is " formation test tools such as packer+pressure gauge+MFE or APR ", when under the instrument behind the down-hole base sealed packer packing oil jacket annular space, suppress operation downhole testing device by ground handling tubing string or annular space then and drive a well or closing well, thereby reach the purpose of downhole closing pressure measurement.This technical deficiency is: can not realize that motionless test string directly implements fracturing reform to test layer, carry out discharge opeing then immediately; The MFE tester is switch well operating difficulties in inclined shaft and heavy oil wells; The cost height, construction intensity is big; Just can read after data such as down-hole pressure temperature only trip out test string, be unfavorable for the formulation of kill-job and following step measure.
The process unit of hydraulic jet pump fluid-discharge technology technology is " valve at the bottom of packer+pressure gauge+hydraulic pump (ball seat)+hydraulic pump ".During the hydraulic pump discharge opeing, the pump core can only measure the ground laminar flow and press, and can not obtain the stratum static pressure, if survey static pressure, discharge opeings such as need finish the back and measure the stratum static pressure by the automatic closing well of ball seat or from well head pressurization closing well.This technology can not obtain strata pressure before lift pipe string; Valve (ball seat) carries out the measure operation of following step can not take out hydraulic pump after discharge opeing finishes at the bottom of.
The utility model content
Can not carry out long, formation parameter poor accuracy of other operation, pressure measurement time simultaneously when overcoming the pressure measurement that existing formation testing testing arrangement exists, can not realize that motionless test string directly implements fracturing reform measure, operating cost height to test layer, can not measure deficiencies such as ground laminar flow pressure and static pressure during the discharge opeing simultaneously, the utility model provides a kind of throwing modus ponens testing pressure down hole device.This throwing modus ponens testing pressure down hole device can realize that one-trip string finishes oil pipe and carry negative pressure caber perforation, ask for nature production capacity, hydraulic pump discharge opeing, shut-in pressure survey, the operations such as instant discharge opeing after acidifying and pressure break and the measure.
The technical scheme that its technical problem that solves the utility model adopts is: throw modus ponens testing pressure down hole device and comprise top connection, urceolus, manometer, pressure gauge, top connection is fixedlyed connected with urceolus, pulling assembly, ball-and-seat, manometer from top to bottom are fixedly connected sequentially, pulling assembly, ball-and-seat are positioned at urceolus, and by the endoporus boss upper surface axial location of urceolus.The pulling tube endoporus middle part of pulling assembly radially is installed with pin; The top of pin is equipped with and carries plug on the pulling tube; Carry the plug bottom and be installed in the pulling tube endoporus, shear pin will be carried plug and fix with the pulling tube, carry and be plugged with axial flowing hole; Carrying beyond the Great Wall the end, that liquid was installed was stifled, crossed the stifled lower end of liquid and fixedlyed connected with the pulling tube, and the upper end is positioned at the urceolus endoporus; Cross liquid stifled with carry plug, urceolus is matched in clearance, cross liquid and block up axial flowing hole is arranged; Cross the stifled lower surface of liquid and carry end play is arranged between the plug, its end play is greater than the diameter of shear pin; Carrying beyond the Great Wall, end is installed with fishing joint; Cross between the stifled and urceolus of liquid sealing ring radially is installed; Carry between plug and the pulling tube sealing ring radially is installed.Fixedlying connected with pulling tube lower end in the valve seat upper end of ball-and-seat, fixedlys connected with the pressure gauge tube of manometer in the lower end; Valve ball is between the pin on valve seat and the pulling tube; Valve seat is sitting on the endoporus boss of urceolus, and pressure compensation opening is arranged on the valve seat.Block up and from top to bottom be fixedly connected sequentially at the pressure gauge tube of manometer, spring strut, the end; Push rod is installed in the spring strut, is axially installed with spring between the push rod and the end are stifled; Pressure gauge is installed between push rod and the valve seat, on the pressure gauge tube of setting pressure meter relevant position radially pressure transmission hole is arranged.
The beneficial effects of the utility model are, and are reasonable in design, simple in structure, can reduce and play the lower tubular column operation in formation testing discharge opeing and the measures to reform and wash the kill-job number of times, shorten construction period, reduce operating cost, help reservoir protection and environmental protection.
Description of drawings
Fig. 1 is that the utility model is thrown modus ponens testing pressure down hole apparatus structure schematic diagram.
Fig. 2 is the A-A sectional drawing of Fig. 1.
Among the figure: 1. top connection, 2. fishing head, 3. holding screw, 4. carry plug, it is stifled 5. to cross liquid, 6. sealing ring, 7. urceolus, 8. sealing ring, 9. shear pin, 10. pin, 11. pulling tubes, 12. valve balls, 13. sealing ring, 14. valve seats, 15. pressure gauge tubes, 16. push rod, 17. spring struts, 18. springs, 19. pressure transmission hole radially, 20. ends, are stifled, 21. pulling assemblies, 22. ball-and-seat, 23. manometers, 24. pressure compensation openings, 25. axial flowing hole, 26. axial flowing holes, 27. pressure gauges, 28. axial flowing hole, 29. boss, 30. pressure compensation openings.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
With reference to Fig. 1.The utility model is thrown modus ponens testing pressure down hole device mainly comprise top connection 1, urceolus 7, pulling assembly 21, ball-and-seat 22, manometer 23, pressure gauge 27, top connection 1 is fixedlyed connected with urceolus 7, and urceolus 7 bottom endoporus have boss 29.
Fixedlying connected with pulling tube 11 lower ends in valve seat 14 upper ends of ball-and-seat 22, fixedlys connected with the pressure gauge tube 15 of manometer 23 in the lower end.Valve ball 12 is between the pin 10 at valve seat 14 and pulling tube 11 middle parts.Between valve seat 14 and pulling tube 11, sealing ring 13 is installed radially.The cylindrical of valve seat 14 is up big and down small multidiameters, and its multidiameter is sitting on the endoporus boss 29 of urceolus 7, and the pipe displacement that pulling assembly 21, ball-and-seat 22, manometer 23 are formed is put definite.Pressure compensation opening 24 is radially arranged on the valve seat 14 below the endoporus boss 29 of urceolus 7.
The pressure gauge tube 15 of manometer 23, spring strut 17, the end stifled 20, from top to bottom are fixedly connected sequentially.Push rod 16 is installed in the spring strut 17, is axially installed with spring 18 at the push rod 16 and end stifled 20, and push rod 16 can slide up and down along the endoporus of spring strut 17.Pressure gauge 27 is installed between push rod 16 and the valve seat 14, and radially pressure transmission hole 19 is arranged on the pressure gauge tube 15 of setting pressure meter 27 relevant positions.
The implementation process that the utility model is thrown modus ponens testing pressure down hole device is, respectively top connection 1 fixedlyed connected with urceolus 7 on ground, and pulling assembly 21, ball-and-seat 22, manometer 23 are composed of a fixed connection to throw and get pipe and go here and there.At first, fixedly connected back top connection 1 and urceolus 7 with in the working string lower going-into-well, are arrived the precalculated position; Fixedly connected throwing being got the pipe string utilizes soft delivery mode (as sending into from the well head input or with steel wire) to deliver in the urceolus 7 and take a seat again, and realize and the separating of the instrument of delivery, also can adopt the ground pressing mode, force throwing to get pipe string seat and go on the inner convex platform 29 of urceolus 7.At this moment, ball-and-seat 22 is in closed condition, stops the interior liquid of pipe string to flow down row, pressure gauge 27 in running order positions, and strata pressure reaches pressure gauge 27 by pressure transmission hole 19.
When needs are got throwing pipe string and are taken out, can utilize the any-mode of hydraulic pump pump core band fishing head 2 or pierce tap fishing head 2 to salvage, fishing head is with after fishing joint 2 is docked, on put forward certain load, cut off shear pin 9; Stay for some time, come downforce on the balance ball-and-seat 22 by pressure compensation opening 30 and pressure compensation opening 24; Carry on continuing then, take out to throw and get the pipe string.
In the formation testing tubing string, connect the utility model and throw modus ponens testing pressure down hole device; can finish oil pipe conveying negative pressure caber perforation, ask for nature production capacity, hydraulic pump discharge opeing, shut-in pressure survey by one-trip string; operations such as instant discharge opeing after measure such as acidifying and pressure break operation and the measure; realize discharge opeing, pressure measurement and measures to reform integrated construction; thereby reduce formation testing test rountrip and wash the kill-job number of times; shorten construction period, help reservoir protection and environmental protection.
Claims (8)
1. throw modus ponens testing pressure down hole device for one kind, comprise top connection, urceolus, manometer, pressure gauge, top connection is fixedlyed connected with urceolus, it is characterized in that:
Pulling assembly (21), ball-and-seat (22), manometer (23) from top to bottom are fixedly connected sequentially, and pulling assembly (21), ball-and-seat (22) are positioned at urceolus (7), and by endoporus boss (29) the upper surface axial location of urceolus (7).
2. throwing modus ponens testing pressure down hole device according to claim 1 is characterized in that:
Pulling tube (11) the endoporus middle part of described pulling assembly (21) radially is installed with pin (10); Pin (10) top is equipped with carries plug (4); Carry plug (4) bottom and be installed in pulling tube (11) endoporus, it is fixing with pulling tube (11) that shear pin (9) will be carried plug (4), and carrying plug (4) bottom has axial flowing hole (26); Carry plug (4) upper end liquid stifled (5) was installed, cross stifled (5) lower end of liquid and fixedly connected with pulling tube (11), the upper end is positioned at urceolus (7) endoporus; Cross liquid stifled (5) and carry plug (4), urceolus (7) is matched in clearance, cross liquid and block up (5) axial flowing hole (25) is arranged; Cross stifled (5) lower surface of liquid and carry between the plug (4) end play is arranged; Carry plug (4) upper end and be installed with fishing head (2).
3. throwing modus ponens testing pressure down hole device according to claim 2 is characterized in that: describedly cross stifled (5) lower surface of liquid and put forward end play between the plug (4) greater than the diameter of shear pin (9).
4. throwing modus ponens testing pressure down hole device according to claim 3 is characterized in that: the described mistake between liquid stifled (5) and the urceolus (7) radially is equipped with sealing ring (6); Described carrying between plug (4) and the pulling tube (11) radially is equipped with sealing ring (8).
5. throwing modus ponens testing pressure down hole device according to claim 1 is characterized in that: fixedlying connected with pulling tube (11) lower end in valve seat (14) upper end of described ball-and-seat (22), fixedlys connected with the pressure gauge tube (15) of manometer (23) in the lower end; Valve ball (12) is positioned between valve seat (14) and the pin (10).
6. throwing modus ponens testing pressure down hole device according to claim 5 is characterized in that: between described valve seat (14) and the pulling tube (11) sealing ring (13) is installed radially.
7. throwing modus ponens testing pressure down hole device according to claim 6 is characterized in that: described valve seat (14) is sitting on the endoporus boss (29) of urceolus (7), and pressure compensation opening (24) is arranged on the valve seat (14).
8. throwing modus ponens testing pressure down hole device according to claim 1 is characterized in that: the pressure gauge tube (15) of described manometer (23), spring strut (17), the end stifled (20) from top to bottom are fixedly connected sequentially; Push rod (16) is installed in the spring strut (17), is axially installed with spring (18) between the push rod (16) and the end stifled (20); Pressure gauge (27) is installed between push rod (16) and the valve seat (14), and radially pressure transmission hole (19) is arranged on the pressure gauge tube (15) of setting pressure meter (27) relevant position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201233846U CN201292843Y (en) | 2008-11-07 | 2008-11-07 | Dropping and fetching downhole pressure measuring unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201233846U CN201292843Y (en) | 2008-11-07 | 2008-11-07 | Dropping and fetching downhole pressure measuring unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201292843Y true CN201292843Y (en) | 2009-08-19 |
Family
ID=41006319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201233846U Expired - Lifetime CN201292843Y (en) | 2008-11-07 | 2008-11-07 | Dropping and fetching downhole pressure measuring unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201292843Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418514A (en) * | 2011-10-30 | 2012-04-18 | 中国石油天然气集团公司 | Tubular steel ring self-locking device |
| CN102758616A (en) * | 2012-06-13 | 2012-10-31 | 中国石油集团长城钻探工程有限公司 | Multi-point formation pressure measuring instrument |
| CN104278985A (en) * | 2013-07-03 | 2015-01-14 | 中国石油化工股份有限公司 | Method for using negative pressure perforation technology for realizing pressure recovery well logging interpretation |
| CN114934758A (en) * | 2022-05-30 | 2022-08-23 | 中国石油化工股份有限公司 | Well-flushing temporary plugging tool for fracturing of low-permeability reservoir horizontal well |
-
2008
- 2008-11-07 CN CNU2008201233846U patent/CN201292843Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418514A (en) * | 2011-10-30 | 2012-04-18 | 中国石油天然气集团公司 | Tubular steel ring self-locking device |
| CN102418514B (en) * | 2011-10-30 | 2014-04-16 | 中国石油天然气集团公司 | Tubular steel ring self-locking device |
| CN102758616A (en) * | 2012-06-13 | 2012-10-31 | 中国石油集团长城钻探工程有限公司 | Multi-point formation pressure measuring instrument |
| CN102758616B (en) * | 2012-06-13 | 2014-12-17 | 中国石油集团长城钻探工程有限公司 | Multi-point formation pressure measuring instrument |
| CN104278985A (en) * | 2013-07-03 | 2015-01-14 | 中国石油化工股份有限公司 | Method for using negative pressure perforation technology for realizing pressure recovery well logging interpretation |
| CN114934758A (en) * | 2022-05-30 | 2022-08-23 | 中国石油化工股份有限公司 | Well-flushing temporary plugging tool for fracturing of low-permeability reservoir horizontal well |
| CN114934758B (en) * | 2022-05-30 | 2024-05-17 | 中国石油化工股份有限公司 | Flushing temporary plugging tool for fracturing low-permeability reservoir horizontal well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090819 |
|
| CX01 | Expiry of patent term |