CN202381031U - Packer of horizontal well - Google Patents
Packer of horizontal well Download PDFInfo
- Publication number
- CN202381031U CN202381031U CN2011205581328U CN201120558132U CN202381031U CN 202381031 U CN202381031 U CN 202381031U CN 2011205581328 U CN2011205581328 U CN 2011205581328U CN 201120558132 U CN201120558132 U CN 201120558132U CN 202381031 U CN202381031 U CN 202381031U
- Authority
- CN
- China
- Prior art keywords
- packer
- tube
- deblocking
- self
- horizontal well
- 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
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Abstract
The utility model discloses a packer of a horizontal well, which is designed for solving the problems of large deblocking power, high risk and low sealing performance of the packer. The packer of the horizontal well comprises a center pipe which is connected with adeblocking cylinder and a self-locking cylinder, a rubber cylinder which is connected with the center pipe and the self-locking cylinder, and the like. When in packing, the rubber cylinder of the packer is expanded as being immersed by oil water, and thus an oil sleeve annulus can be sealed; and when in deblcoking, a ball can be pitched in an oil pipe for pressurizing, the deblcoking cylinder can be driven to slide down by a ball seat and can form mesh locking with a self-locking mechanism, thus the rubber cylinder of the packer can be kept in a tension deformation state, and the deblocking can be realized. The packer of the horizontal well, disclosed by the utility model, the packing is convenient, the deblocking is reliable, the oil sleeve annulus can be effectively sealed, and the problems of large deblocking difficulty and high risk of a normal self-expansion packer are solved.
Description
Technical field
The utility model relates to a kind of horizontal well packer, belongs to the exploitation of oil-gas field technical field.
Background technology
At present, employed packer has compression, fluid pressure type and leather cup self-sealing etc. in the horizontal well operation, and the two ends of compression packer have the slips anchor, sets the back anchor fluke and is fixed on the casing wall, and deblocking power is big, risk is high; Also there is same problem in the fluid pressure type packer; It is little that the leather cup self-packing packer bears pressure reduction, and poor sealing performance is gone here and there Lou in the down-hole easily, causes packer to lose efficacy.
Summary of the invention
The purpose of the utility model is to provide a kind of horizontal well packer, and it can solve the problem that above-mentioned packer deblocking power is big, risk is high and sealing performance is low.
The concrete technology contents of the utility model is following:
The top of horizontal well packer central tube connects top connection, and the central tube bottom is provided with arc shaft to cutting, the self-locking tube of pawl in the cutting outer wall thread connecting band.Deblocking tube top is provided with arc shaft to cutting, and it is fixed in the central tube outer wall by shop bolt.Port, deblocking tube undergauge hole connects ball seat, and the bottom outer tube wall is provided with pawl.The packing element upper end connects central tube by pressure ring, and the lower end is connected the self-locking tube by movable pressure ring with pin.Self-locking tube lower end connects lower contact.
The operating principle of the utility model horizontal well packer is following:
Prolonged expansion takes place in this packing element under profit soaks, with this Seal Oil cover annular space.During deblocking, in oil pipe, suppress downwards when reaching certain value, shop bolt is cut off, and ball seat drives the deblocking tube to lower slider, makes packing element receive stretcher strain.Produce locking with the self-locking tube behind the deblocking tube downslide certain distance, make the stretcher strain state of packing element be able to keep, thereby reach the purpose of packer deblocking.
The utility model horizontal well packer sets conveniently, and deblocking is reliable, and effectively Seal Oil cover annular space solves the big and high problem of risk of common self-expanding packer deblocking difficulty.
Description of drawings
Fig. 1 is the horizontal well packer structural representation.
Fig. 2 is the central tube sketch map of horizontal well packer.
Fig. 3 is the deblocking tube sketch map of horizontal well packer.
The specific embodiment
Embodiment:
Embodiment with reference to 1 to 3 pair of the utility model of accompanying drawing further specifies:
Horizontal well packer comprises top connection 1, central tube 2, pressure ring 3, packing element 4, shop bolt 5, deblocking tube 6, ball seat 7, movable pressure ring 8, pin 9, self-locking tube 10 and lower contact 11.
The top of horizontal well packer central tube 2 is connected top connection 1, axially transplant a cutting in central tube 2 four of bottom tube wall fluting processing, and transplanting a cutting the outer wall machining screw, in order to the self-locking tube 10 of pawl in the connecting band.Four of fluting processing are axially transplanted a cutting on deblocking tube 6 tops, with its pass that central tube 2 transplants a cutting between groove, be fixed on central tube 2 outer walls by shop bolt 5.The ball seat 7 that is threaded in port, deblocking tube 6 undergauge hole is processed pawl on the outer tube wall of bottom.With pressure ring 3 packing element 4 upper ends are connected central tube 2,9 packing element 4 lower ends are connected self-locking tube 10 with pinning with movable pressure ring 8.With the lower contact 11 that is threaded of self-locking tube 10 lower ends.
When underground work, packing element 4 is soaked by profit, and when expanding, pressure ring 3 and 9 limits it and extends vertically, makes it can only expanded radially, thus Seal Oil cover annular space; During deblocking, drop into steel ball, in oil pipe, suppress.When pressure reached certain value, shop bolt 5 at first was cut off, and ball seat 7 drives deblocking tube 6 and glides, and makes packing element 4 that elongation strain take place immediately; When being deformed to when a certain amount of, the pin 9 on the movable pressure ring 8 is also cut off, and the position-limiting action of 9 pairs of packing elements 4 of promptly movable pressure ring disappears, and makes packing element 4 be able to descending elongation; Behind deblocking tube 6 downslide certain distances, pawl engagement locking takes place with self-locking tube 10, to limit deblocking tube retraction, make the stretcher strain state of packing element 4 be able to keep, thereby accomplish the deblocking of packer.
Claims (1)
1. horizontal well packer is characterized in that:
The top of central tube (2) connects top connection (1), and central tube (2) bottom is provided with arc shaft to cutting, the self-locking tube (10) of pawl in the cutting outer wall thread connecting band; Deblocking tube (6) top is provided with arc shaft to cutting, and it is fixed in central tube (2) outer wall by shop bolt (5); Port, deblocking tube (6) undergauge hole connects ball seat (7), and the bottom outer tube wall is provided with pawl; Packing element (4) upper end connects central tube (2) by pressure ring (3), and the lower end is connected self-locking tube (10) by movable pressure ring (8) with pin (9); Self-locking tube (10) lower end connects lower contact (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205581328U CN202381031U (en) | 2011-12-28 | 2011-12-28 | Packer of horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205581328U CN202381031U (en) | 2011-12-28 | 2011-12-28 | Packer of horizontal well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202381031U true CN202381031U (en) | 2012-08-15 |
Family
ID=46629544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205581328U Expired - Fee Related CN202381031U (en) | 2011-12-28 | 2011-12-28 | Packer of horizontal well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202381031U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989568A (en) * | 2017-11-27 | 2018-05-04 | 李明 | A kind of multistage can desealed water-swelling packer and method |
-
2011
- 2011-12-28 CN CN2011205581328U patent/CN202381031U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989568A (en) * | 2017-11-27 | 2018-05-04 | 李明 | A kind of multistage can desealed water-swelling packer and method |
| CN107989568B (en) * | 2017-11-27 | 2019-11-22 | 东阳市天杨建筑工程设计有限公司 | A kind of multistage can desealed water-swelling packer and method |
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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: 20120815 Termination date: 20201228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |