CN202249914U - Bidirectional pressure transmission test sealer - Google Patents
Bidirectional pressure transmission test sealer Download PDFInfo
- Publication number
- CN202249914U CN202249914U CN2011202641596U CN201120264159U CN202249914U CN 202249914 U CN202249914 U CN 202249914U CN 2011202641596 U CN2011202641596 U CN 2011202641596U CN 201120264159 U CN201120264159 U CN 201120264159U CN 202249914 U CN202249914 U CN 202249914U
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- China
- Prior art keywords
- leather cup
- wall
- pilot
- main body
- lock tube
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- Expired - Lifetime
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Abstract
The utility model provides a bidirectional pressure transmission test sealer, which is applied to oilfield downhole testing seal. In the sealer, a radial lateral pressure hole is formed in the wall of an upper joint; the lower end of the upper joint is connected with a pressure conduction body; four axial upper pressure conduction channels are formed in the wall of the pressure conduction body; an outer barrel is sleeved on the outer wall of the pressure transmission body; a leather cup upper sleeve is fixed on the pressure transmission body, a leather cup lower sleeve is fixed at the upper end of the outer barrel, a first leather cup is arranged between the leather cup upper sleeve and the leather cup lower sleeve, and the upper pressure conduction channel is communicated with the inner cavity of the first leather cup; a radial stratum pressure transmission hole is formed in the walls of the pressure conduction body and the outer barrel; and the lower end of a connecting barrel is in threaded connection with a cylindrical body, a positioning claw is arranged on the wall of the body, and a forcing cone is connected with the lower end of the body. The bidirectional pressure transmission test sealer has the advantages that: the sealing performance and test efficiency of the test sealer are improved, the test error is reduced, and the dynamic monitor and adjustment to subdivision water injection are realized.
Description
Technical field
The utility model relates to the used sealing tool in oilfield well testing field, relates in particular to employed a kind of two-way pressure transmission test sealer when adopting the bridge-type eccentric branch to annotate the zonal pressure test of well, flow monitoring, testing seal about packer.
Background technology
At present, along with going deep into of oil field development, adopting separate zone waterflooding technology to improve oil recovery rate has become one of key technology of oil field development.Seperated layer water injection test pulling and running tool leather cup formula test sealer commonly used adopts weighted lever compression leather cup to make its sealing, testing tube string longer dimension, and pulling power is bigger, is not easy to operation.In the seperated layer water injection of high angle hole and directional well is tested, occur being hampered, meeting the card phenomenon easily, and test oil when sealing, the variation of cover pressure reduction greatly, affect the sealing effectiveness of test sealer.
The utility model content
The purpose of the utility model is: a kind of two-way pressure transmission test sealer is provided; Sealer is hampered, meets the problem of card easily in the solution bridge-type separate water injection well; Improve test sealer sealing performance and testing efficiency, reduce test error, realize dynamic monitoring of meticulous seperated layer water injection and adjustment.
The technical scheme that the utility model adopts is: two-way pressure transmission test sealer, mainly by cover, first leather cup, leather cup on top connection, pilot body, the leather cup trap, urceolus, connecting cylinder, plug, second leather cup, main body, locating detent spring, screw, locating detent, cam lock tube, pivot pin, compression spring, runner, torsion spring, cam pin, cam tongue and starting taper form.There is external screw thread the top connection upper end, can connect upper tool; It is characterized in that: side pressure hole is radially arranged on the wall of top connection, and the side pressure hole is positioned at the bottom of top connection; There is internal thread the top connection lower end, the top connection lower end pilot body that is threaded; The pilot body is a cylindrical shape, have on the pilot body wall axial on the pilot passage; The external wall of pilot has ring-shaped step, on the external wall of pilot, is with urceolus, and the upper surface of urceolus is in the bottom of pilot body ring-shaped step; Screw thread is fixed with on the leather cup and overlaps on the pilot body, and the upper end screw thread of urceolus is fixed with leather cup and traps, and first leather cup of an annular is arranged between cover and leather cup are trapped on the leather cup, and last pilot passage is communicated with the inner chamber of first leather cup; A radially stratum pressure transmission hole is arranged on the wall of pilot body and urceolus; A diaphragm is arranged in the pilot body centre bore; There is internal thread lower end at the pilot body, and pilot body lower end centre bore internal thread is fixed a plug, and there is following pilot passage radially the lower end of plug; There is the outer step of annular the lower end of plug, is with connecting cylinder in the lower end of plug; Connecting cylinder is that the cylindrical shape upper end has step in the annular; Be fixed with on the annular leather cup at the lower end of urceolus screw thread and overlap; Connecting cylinder upper end screw thread is fixed with an annular leather cup and traps; Second leather cup that an annular is arranged between cover and annular leather cup are trapped on the annular leather cup; The upper end of following pilot passage is communicated with transverse holes, and transverse holes is passed plug and pilot body wall, and following pilot passage is communicated with the inner chamber of second leather cup;
The cylindrical-shaped main body that is threaded in the lower end of connecting cylinder, and pass through screw between connecting cylinder and the main body;
A following pressure guide hole is arranged on the wall of main body; Have the slot of symmetry on the main wall, locating detent is arranged in the slot on main wall, locating detent is connected on the main wall through horizontal bearing pin, has the locating detent spring to support two locating detents; A columnar cam lock tube is arranged in the main center hole; Cam lock is with the end, and the axial slot of two symmetries is arranged on the cam lock jacket wall, in two slots of cam lock tube, is installed with a pivot pin; The two ends of pivot pin are fixed on the wall of main body, and cam lock is enclosed within the main center hole and slides.A compression spring is arranged in the cam lock tube and in the bottom of pivot pin, and compression spring actuating cam lock tube is to lower slider; A runner is fixed through lateral shaft in bottom at the cam lock tube; The bottom surface of cam lock tube is the inclined-plane, and the bottom surface of cam lock tube is pressed on the ramp of runner, and the cam lock tube slides downwards and can drive the runner rotation; On runner, be connected with a cam tongue, and have torsion spring, torsion spring that the cam tongue is outwards opened on the cam pin through cam pin; On main wall, have the window of symmetry, the window of symmetry is relative with the cam tongue.Be connected with a starting taper in the main body lower end.
Set forth two-way pressure transmission test sealer operating principle, help understanding the utility model.Consult accompanying drawing 1.The interstitial channels that exists between pilot body 3 lower surfaces and urceolus 9 upper surfaces is communicated with the internal cavity of first leather cup 6, and be communicated with by the last pilot passage 4 that forms between pilot body 3 and the connecting cylinder 10; Connecting cylinder 10 has the radial passage that is communicated with plug 11, be communicated with the cavity of second leather cup 12, simultaneously plug 11 lower shaft to following pilot passage 13 also is communicated with the internal cavity of second leather cup 12, following pilot passage 13 is in communication with the outside through descending pressure guide hole 20; When sealer was worked, the oil pipe annular fluid was measured the oil pipe annular pressure through side pressure hole 2, and simultaneously, fluid can be gone up pilot duct 4 through 2 entering of side pressure hole and apply fluid pressure for first leather cup 6; The oil pipe annular fluid applies fluid pressure for second leather cup 12 through pilot passage 13 under pressure guide hole 20 gets into down.
Set forth two-way pressure transmission test sealer operating principle, help understanding the utility model.Consult accompanying drawing 2.When two-way pressure transmission test sealer sets; To target zone, 3～5m carries to injection well downhole flow regulator on again under the injection well downhole flow regulator by rope traction, and cam tongue 28 is recovered within the main body 17; Start locating detent spring 18 locating detent 21 is opened, transfer sealer locating detent 21 is positioned on the injection well downhole flow regulator.Leather cup impacts the lower compression expansion at gravity rod, and the annular space between cup packing injection well downhole flow regulator after the compression and the test sealer makes between stratum and the oil pipe to separate.During flow measurement, fluid is directly surveyed through stratum pressure transmission hole realization seperated layer water injection individual layer through flow meter; During pressure test, strata pressure reaches pressure gauge through stratum pressure transmission hole 8, realizes the pressure zonal testing.Behind the EOT, carry on the steel wire and form tension and remove the gravity rod active force, first leather cup 6 and second leather cup 12 reclaim automatically, and locating detent 21 receives pick-up drag and regains within the main body, on propose the tool string completion and test.
The beneficial effect of the utility model: the two-way pressure transmission test of the utility model sealer, overcome conventional sealer and set the expansion amplitude of down cup expansion amplitude in back greater than last leather cup, make upper and lower leather cup keep the stable of sealing performance; The pilot passage is set is communicated with, make tubing pressure reach upper and lower leather cup cavity through the pilot passage with leather cup.The utility model can realize effectively that zonal pressure test in big gradient, the directed bridge-type eccentric separate water injection well, flow individual layer are directly surveyed, testing seal about packer, improves testing efficiency, reduces test error.
Description of drawings
Fig. 1 is the two-way pressure transmission test of the utility model sealer the first half structural profile sketch map.
Fig. 2 is the two-way pressure transmission test of the utility model sealer the latter half structural profile sketch map.
Among the figure, the 1-top connection, 2-side pressure hole, 3-pilot body, the last pilot passage of 4-overlaps on the 5-leather cup, 6-first leather cup; The 7-leather cup is trapped, 8-stratum pressure transmission hole, 9-urceolus, 10-connecting cylinder, 11-plug, 12-second leather cup, pilot passage under the 13-; The 17-main body, 18-locating detent spring, 19-screw, pressure guide hole under the 20-, 21-locating detent, 22-cam lock tube, 23-pivot pin; 24-compresses spring, 25-runner, 26-torsion spring, 27-cam pin, 28-cam tongue, 29-starting taper.
The specific embodiment
Embodiment 1: with a two-way pressure transmission test sealer is example, and the utility model is done further explain.
Consult Fig. 1.The two-way pressure transmission of the utility model test sealer, mainly 5, first leather cup 6, leather cup trap 7 by overlapping on top connection 1, pilot body 3, the leather cup, urceolus 9, connecting cylinder 10, plug 11, second leather cup 12, main body 17, locating detent spring 18, screw 19, locating detent 21, cam lock tube 22, pivot pin 23, compression spring 24, runner 25, torsion spring 26, cam pin 27, cam tongue 28 and starting taper 29 are formed.
There is external screw thread top connection 1 upper end.Side pressure hole 2 is radially arranged on the wall of top connection 1, and side pressure hole 2 is positioned at the bottom of top connection 1.There is internal thread top connection 1 lower end, the top connection 1 lower end pilot body 3 that is threaded.Pilot body 3 is a cylindrical shape, be evenly distributed with on pilot body 3 walls four axial on pilot passage 4.Pilot body 3 outer walls have ring-shaped step, on pilot body 3 outer walls, are with urceolus 9, and the upper surface of urceolus 9 is in the bottom of pilot body 3 ring-shaped steps.Be fixed with on the leather cup at screw thread on the pilot body 3 and overlap 5, the upper end screw thread of urceolus 9 is fixed with a leather cup and traps 7, and trapping at cover 5 and leather cup on the leather cup has first leather cup 6 of an annular between 7, and last pilot passage 4 is communicated with the inner chamber of first leather cup 6.On the wall of pilot body 3 and urceolus 9, a radially stratum pressure transmission hole 8 is arranged.A diaphragm is arranged in pilot body 3 centre bores.There is internal thread lower end at pilot body 3, and pilot body 3 lower end centre bore internal threads are fixed a plug 11, and there is following pilot passage 13 radially the lower end of plug 11.There is the outer step of annular the lower end of plug 11, is with connecting cylinder 10 in the lower end of plug 11.Connecting cylinder 10 has step in the annular for the cylindrical shape upper end.Be fixed with on the annular leather cup at the lower end of urceolus 9 screw thread and overlap 5; Connecting cylinder 10 upper end screw threads are fixed with an annular leather cup and trap 7; Cover 5 and annular leather cup are trapped second leather cup 12 of an annular are arranged between 7 on annular leather cup; The upper end of following pilot passage 13 is communicated with transverse holes, and transverse holes is passed plug 11 and pilot body 3 walls, and following pilot passage 13 is communicated with the inner chamber of second leather cup 12.
Consult Fig. 2.The cylindrical-shaped main body 17 that is threaded in the lower end of connecting cylinder 10, and fixing between connecting cylinder 10 and the main body 17 through screw 19.A following pressure guide hole 20 is arranged on the wall of main body 17.Have the slot of symmetry on main body 17 walls, on main body 17 walls, in the slot locating detent 21 is arranged respectively, locating detent 21 is connected on main body 17 walls through horizontal bearing pin, has locating detent spring 18 to support two locating detents 21.A columnar cam lock tube 22 is arranged in main body 17 centre bores; Cam lock tube 22 has the end; The axial slot that two symmetries are arranged on cam lock tube 22 walls; In 22 two slots of cam lock tube, be installed with a pivot pin 23, the two ends of pivot pin 23 are fixed on the wall of main body 17, and cam lock tube 22 slides in main body 17 centre bores.A compression spring 24 is arranged in cam lock tube 22 and in the bottom of pivot pin 23, and compression spring 24 actuating cam lock tubes 22 are to lower slider.A runner 25 is fixed through lateral shaft in bottom at cam lock tube 22.The bottom surface of cam lock tube 22 is the inclined-plane, and the bottom surface of cam lock tube 22 is pressed on the ramp of runner 25, and cam lock tube 22 can drive runner 25 to lower slider and rotate.On runner 25, be connected with a cam tongue 28 through cam pin 27, and torsion spring 26 is arranged on the cam pin 27, torsion spring 26 is outwards opened cam tongue 28.On main body 17 walls, have the window of symmetry, the window of symmetry is relative with cam tongue 28.Be connected with a starting taper 29 in main body 17 lower ends.
Claims (1)
1. two-way pressure transmission test sealer, mainly by cover (5), first leather cup (6), leather cup on top connection (1), pilot body (3), the leather cup trap (7), urceolus (9), connecting cylinder (10), plug (11), second leather cup (12), main body (17), locating detent spring (18), screw (19), locating detent (21), cam lock tube (22), pivot pin (23), compression spring (24), runner (25), torsion spring (26), cam pin (27), cam tongue (28) and starting taper (29) form; There is external screw thread top connection (1) upper end, and it is characterized in that: side pressure hole (2) is radially arranged on the wall of top connection (1), and side pressure hole (2) are positioned at the bottom of top connection (1); There is internal thread top connection (1) lower end, top connection (1) the lower end pilot body (3) that is threaded; Pilot body (3) is a cylindrical shape, and axial last pilot passage (4) is arranged on pilot body (3) wall; Pilot body (3) outer wall has ring-shaped step, on pilot body (3) outer wall, is with urceolus (9), and the upper surface of urceolus (9) is in the bottom of pilot body (3) ring-shaped step; Go up screw thread at pilot body (3) and be fixed with cover (5) on the leather cup; The upper end screw thread of urceolus (9) is fixed with leather cup trap (7); Trapping at cover (5) and leather cup on the leather cup has first leather cup of an annular (6) between (7), last pilot passage 4 is communicated with the inner chamber of first leather cup (6); A radially stratum pressure transmission hole (8) is arranged on the wall of pilot body (3) and urceolus (9); In pilot body (3) centre bore diaphragm is arranged; There is internal thread lower end at pilot body (3), and pilot body (3) lower end centre bore internal thread is fixed a plug (11), and there is following pilot passage (13) radially the lower end of plug (11); There is the outer step of annular the lower end of plug (11), is with connecting cylinder (10) in the lower end of plug (11); Connecting cylinder (10) has step in the annular for the cylindrical shape upper end; Lower end screw thread at urceolus (9) is fixed with cover (5) on the annular leather cup; Connecting cylinder (10) upper end screw thread is fixed with an annular leather cup trap (7); Trapping at cover (5) and annular leather cup on the annular leather cup has second leather cup of an annular (12) between (7); The upper end of following pilot passage (13) is communicated with transverse holes, and transverse holes is passed plug (11) and pilot body (3) wall, and following pilot passage (13) is communicated with the inner chamber of second leather cup (12);
The cylindrical-shaped main body (17) that is threaded in the lower end of connecting cylinder (10), and fixing between connecting cylinder (10) and the main body (17) through screw (19); A following pressure guide hole (20) is arranged on the wall of main body (17); Have the slot of symmetry on main body (17) wall, on main body (17) wall, in the slot locating detent (21) is arranged, locating detent (21) is connected on main body (17) wall through horizontal bearing pin, has locating detent spring (18) to support two locating detents (21); In main body (17) centre bore, a columnar cam lock tube (22) is arranged; Cam lock tube (22) has the end; The axial slot that two symmetries are arranged on cam lock tube (22) wall; In (22) two slots of cam lock tube, be installed with a pivot pin (23), the two ends of pivot pin (23) are fixed on the wall of main body (17), and cam lock tube (22) slides in main body (17) centre bore; A compression spring (24) is arranged in cam lock tube (22) and in the bottom of pivot pin (23), and compression spring (24) actuating cam lock tube (22) is to lower slider; A runner (25) is fixed through lateral shaft in bottom at cam lock tube (22); The bottom surface of cam lock tube (22) is the inclined-plane, and the bottom surface of cam lock tube (22) is pressed on the ramp of runner (25); Upward be connected with a cam tongue (28) through cam pin (27) at runner (25), and on the cam pin (27) torsion spring (26) arranged, torsion spring (26) is outwards opened cam tongue (28); On main body (17) wall, have the window of symmetry, the window of symmetry and cam tongue (28) are relative; Be connected with a starting taper (29) in main body (17) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202641596U CN202249914U (en) | 2011-07-25 | 2011-07-25 | Bidirectional pressure transmission test sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202641596U CN202249914U (en) | 2011-07-25 | 2011-07-25 | Bidirectional pressure transmission test sealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202249914U true CN202249914U (en) | 2012-05-30 |
Family
ID=46111173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202641596U Expired - Lifetime CN202249914U (en) | 2011-07-25 | 2011-07-25 | Bidirectional pressure transmission test sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202249914U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541700A (en) * | 2013-10-21 | 2014-01-29 | 康庆刚 | Reverse seal type eccentric water distributor |
-
2011
- 2011-07-25 CN CN2011202641596U patent/CN202249914U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541700A (en) * | 2013-10-21 | 2014-01-29 | 康庆刚 | Reverse seal type eccentric water distributor |
| CN103541700B (en) * | 2013-10-21 | 2015-10-28 | 康庆刚 | Reverse sealed eccentric injection mandrel |
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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: 20120530 |
|
| CX01 | Expiry of patent term |