CN2557690Y - Self-seal checking hydraulic packer - Google Patents
Self-seal checking hydraulic packer Download PDFInfo
- Publication number
- CN2557690Y CN2557690Y CN 02274277 CN02274277U CN2557690Y CN 2557690 Y CN2557690 Y CN 2557690Y CN 02274277 CN02274277 CN 02274277 CN 02274277 U CN02274277 U CN 02274277U CN 2557690 Y CN2557690 Y CN 2557690Y
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- CN
- China
- Prior art keywords
- envelope
- piston
- central tube
- seal checking
- hole
- 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 - Lifetime
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Abstract
The utility model discloses a self seal checking hydraulic packer which is provided with a seal checking and an anti-resistance devices of a locking device, a sealing device, an anchoring device and a hydraulic device. The anti-resistance device is connected with an anti-resistance pawl spring in the left side of a center pipe 4 via screw threads through a groove embedding step lock spring 2 at the left end of a cylinder 3, and the right end of the cylinder 3 is fixedly connected with a rubber cylinder shaft 11 in to a whole; a plunger 8 is connected with a plunger 10 through shear nails 9 to form a composite plunger. The composite piston is arranged in a ring cavity composed of the cylinder 3, the center pipe 4 and the rubber cylinder shaft 11 and is positioned on the center pipe 4 through a shear nail 7; an anti-resistance lock block 6 is arranged in a ring groove of the center pipe 4, and a coupling 1 is fixedly connected with the center pipe 4 through a losing shear nail 5 in a locking mode. The seal checking device is provided with the plunger 8 and the plunger 10 and is sheathed in the ring cavity composed of the rubber cylinder shaft 11, the center pipe 4 and the cylinder 3 through the shear pins 9, and a seal checking hole 26 at the left end of the rubber cylinder shaft 11 is communicated with a seal checking channel 25 and seal checking holes 23 and 24; a steel ball 16 is arranged in the seal checking hole 26, and a pressure cap 15 presses a spring 14. The self seal checking hydraulic packer is suitable for sealing interlayer water of a production well to realize that the upper part is sealed, and the lower part is produced; the center part is sealed, and the upper and the lower parts are produced.
Description
Affiliated technical field
The utility model belongs to the oil field packer, and is particularly a kind of from testing the envelope hydraulic packer.
Background technology
At present, the domestic envelope hydraulic packer of testing certainly adopts fixed journey system control to test envelope, because the wall thickness difference of the employed sleeve pipe in oil field, so internal diameter difference, therefore testing testing certainly of envelope with the control stroke, to seal the hydraulic packer scope of application little, can not be applicable to the sleeve pipe of different inner diameters, and in casing deformation well, often cause and test the envelope failure.
Summary of the invention
The purpose of this utility model is to overcome above technical deficiency, provides a kind of and tests the envelope hydraulic packer certainly by hydraulic coupling control.
Task of the present utility model is, a kind of from testing the envelope hydraulic packer, has hydraulic means, locking device, packing device, anchoring device, the packer detecting device and the anti-resistance device that also comprise hydraulic means, the anti-resistance device of hydraulic means deters the pawl spring thread connection by cylinder barrel left end inboard wall groove setting-in stepping snap and central tube left side, right-hand member and packing element axle are fixed with one by screw thread, piston, test the envelope piston and be located by connecting into a built-up piston by testing the envelope shear pin, be loaded on cylinder barrel, central tube, in the ring cavity that the packing element axle is formed, piston left side outer wall supports and deters pawl spring interlocking inner wall of cylinder, and be positioned on the central tube by seat envelope shear pin, deterring lock dog is loaded in the central tube circumferential groove in its end portion, lower end flange is flush-mounted in the box cupling annular groove, and the top is connected box cupling interlocking central tube by the crimping of piston inner left wall by putting shear pin aside; The packer detecting device of hydraulic means by piston with test the envelope piston by testing the envelope shear pin socket packing element axle that is connected, central tube and cylinder barrel are formed in the ring cavity, packing element axle left end is tested sealing of hole and is tested the envelope passage, test sealing of hole, testing sealing of hole communicates, test the sealing of hole external seal face steel ball of packing into, the pressure cap holddown spring, steel ball is housed, spring, the spacer ring cunning of pressure cap is loaded on a packing element axle outer wall left side, respectively there is one group of packing element right both sides, the packing element axle articulates left cone successively, the slips cover, slips, right cone and central tube left end pawl spring screw thread interlocking, and separate the pipe outer wall and support by carrying, carry and separate pipe and be connected on the central tube by the deblocking shear pin.
Characteristics of the present utility model: one, by piston, test the envelope piston, test the envelope shear pin and form built-up piston and separate with the built-up piston when packer detecting device is worked that the spacer ring that steel ball is housed is formed; Its two, be provided with the device that deters of pawl spring, the instrument of the assurance not seat envelope of going into the well in the way.
Description of drawings
Specify with embodiment below in conjunction with accompanying drawing.
Fig. 1 shows from testing envelope hydraulic packer structure chart.
Among the figure, the 1-box cupling; 2-stepping snap; The 3-cylinder barrel; The 4-central tube; 5-puts shear pin aside; 6-deters lock dog; 7-seat envelope shear pin; The 8-piston; 9-tests the envelope shear pin; 10-tests the envelope piston; 11-packing element axle; The 12-packing element; The 13-spacer ring; The 14-spring; The 15-pressure cap; The 16-steel ball; 17-left side cone; 18-slips cover; The 19-slips; The 20-spring; The right cone of 21-; 22-carries and separates pipe; 23-tests sealing of hole; 24-tests sealing of hole; 25-tests the envelope passage; 26-tests sealing of hole; 27-deblocking shear pin
The specific embodiment
Among Fig. 1, have cylinder barrel 3 left end inboard wall groove setting-in stepping snaps 2 and deter the pawl spring thread connection with central tube 4 left sides, right-hand member and packing element axle 11 are fixed with one by screw thread; Piston 8, test envelope piston 10 and be located by connecting into a built-up piston by testing envelope shear pin 9, be loaded on cylinder barrel 3, central tube 4, in the ring cavity that packing element axle 11 is formed, piston 8 left side outer walls support and deter pawl spring interlocking cylinder barrel 3 inwalls, and be positioned on the central tube 4 by seat envelope shear pin 7, deterring lock dog 6 is loaded in central tube 4 circumferential groove in its end portion, the lower end projection is flush-mounted in box cupling 1 annular groove, the top is compressed by piston 8 inner left wall, be connected with box cupling 1 locking central tube 4 and by putting shear pin 5 aside, steel ball 16 is housed, spring 14, the spacer ring 13 sliding packing element axle 11 outer wall left sides that are loaded on of pressure cap 15, respectively there is one group of packing element 12 right both sides, packing element axle 11 articulates left cone 17 successively, slips cover 18, slips 19, right cone 21 and central tube 4 left end pawl spring screw thread interlockings, and separate pipe 22 outer walls and support by carrying, carry and separate pipe 22 and be connected on the central tube 4 by deblocking shear pin 27.
From testing the envelope hydraulic packer course of work, go into the well by the oil pipe connection, the water filling of going into the well behind the precalculated position is suppressed, and hydraulic pressure passes to built-up piston by the hole on the central tube 4, cuts off when pressure reaches certain value back seat envelope shear pin 7, the built-up piston right lateral, central tube 4 pawl springs lose support, and built-up piston, cylinder barrel 3 be right lateral together, and left cone 17, right cone 21 are anchored to internal surface of sleeve pipe with slips 19 expansions, with slips 19 serves as to support compression seal packing element 12, and cartridge 12 expands and seals; When rising to certain value posteriority envelope shear pin 9 again, cuts off pressure, testing envelope piston 10 right laterals separates with piston 8, liquid left end on packing element axle 11 is tested sealing of hole 26, packing element axle 11 and the annular space of central tube 4 are tested envelope passage 25 and are tested and test sealing of hole 23 on sealing of hole 24 and the spacer ring 13 and enter into a left side, in right cartridge 12 and the formed ring cavity of sleeve pipe, the sealing performance of check packing element 12, this moment, seat sealed, testing the envelope action finishes, the double wedge that stops on the back stepping snap 2 is engaged in central tube 4 grooves, packing element 12 not resilience under 2 lockings of stepping snap, upper lifting pipe post box cupling 1 separates with the down-hole occluding member outside the proposition well, salvage with dragging for anchor in the connection of 27/8 oil pipe and go into the well, dragging for anchor inserts to carry separating and grabs lock in the pipe 22 and carry and separate pipe 22 inwalls, carry that to separate pipe 22 up, central tube 4 right side pawl springs withdraw from support to be separated with right cone 21, and instrument is pulled out.
From testing envelope hydraulic packer technical performance index:
Seat seal pressure: 16MPa
Test seal pressure: 17MPa
Operating pressure: 25MPa
Deblocking load: 50-70KN
Operating temperature :≤120 ℃
Be applicable to that from testing the envelope hydraulic packer producing well exclusion of interbeded water can realize sealing up adopting down, upper and lower operation is adopted in the envelope centre.
Claims (1)
1. test the envelope hydraulic packer certainly for one kind, have hydraulic means, locking device, packing device, anchoring device, it is characterized in that also comprising the packer detecting device and the anti-resistance device of hydraulic means,
A. the anti-resistance device of hydraulic means deters the pawl spring thread connection by cylinder barrel (3) left end inboard wall groove setting-in stepping snap (2) and central tube (4) left side, right-hand member and packing element axle (11) are fixed with one by screw thread, piston (8), test envelope piston (10) and be located by connecting into a built-up piston by testing envelope shear pin (9), be loaded on cylinder barrel (3), central tube (4), in the ring cavity that packing element axle (11) is formed, piston (8) left side outer wall supports and deters pawl spring interlocking cylinder barrel (3) inwall, and be positioned on the central tube (4) by seat envelope shear pin (7), deterring lock dog (6) is loaded in central tube (4) circumferential groove in its end portion, lower end flange is flush-mounted in box cupling (1) annular groove, the top is connected box cupling (1) interlocking central tube (4) by piston (8) inner left wall crimping by putting shear pin (5) aside;
B. the packer detecting device of hydraulic means by piston (8) with test envelope piston (10) and form in the ring cavity with cylinder barrel (3) by testing be connected socket packing element axle (11), central tube (4) of envelope shear pin (9), packing element axle (11) left end is tested sealing of hole (26) and is tested envelope passage (25), tests sealing of hole (23), tests sealing of hole (24) and communicate, test sealing of hole (23) the external seal face steel ball (16) of packing into, pressure cap (15) pressing spring (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02274277 CN2557690Y (en) | 2002-07-18 | 2002-07-18 | Self-seal checking hydraulic packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02274277 CN2557690Y (en) | 2002-07-18 | 2002-07-18 | Self-seal checking hydraulic packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2557690Y true CN2557690Y (en) | 2003-06-25 |
Family
ID=33738571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02274277 Expired - Lifetime CN2557690Y (en) | 2002-07-18 | 2002-07-18 | Self-seal checking hydraulic packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2557690Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165310B (en) * | 2006-10-18 | 2011-08-03 | 刘宜贵 | One-way slip hydraulic base sealed packer |
| CN110847848A (en) * | 2019-12-12 | 2020-02-28 | 辽宁新华仪器有限公司 | Full latus rectum scale control shutoff tubular column instrument of motor-pumped well |
-
2002
- 2002-07-18 CN CN 02274277 patent/CN2557690Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165310B (en) * | 2006-10-18 | 2011-08-03 | 刘宜贵 | One-way slip hydraulic base sealed packer |
| CN110847848A (en) * | 2019-12-12 | 2020-02-28 | 辽宁新华仪器有限公司 | Full latus rectum scale control shutoff tubular column instrument of motor-pumped well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120718 Granted publication date: 20030625 |