CN202157780U - Semi-cementing recyclable packer - Google Patents
Semi-cementing recyclable packer Download PDFInfo
- Publication number
- CN202157780U CN202157780U CN2011202801114U CN201120280111U CN202157780U CN 202157780 U CN202157780 U CN 202157780U CN 2011202801114 U CN2011202801114 U CN 2011202801114U CN 201120280111 U CN201120280111 U CN 201120280111U CN 202157780 U CN202157780 U CN 202157780U
- Authority
- CN
- China
- Prior art keywords
- packer
- cementing
- pipe
- suspension joint
- circulation
- 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 semi-cementing recyclable packer, which comprises a pressing packer, a pressure differential switch, a cementing switch tool and a hanging connector. The pressing packer is divided into an upper pressing packer and a lower pressing packer which are respectively arranged at two ends of the pressure differential switch through treaded connection, and the hanging connector is arranged at the lower end of the lower pressing packer through treaded connection. An outside-pipe packer is fixedly sleeved on the outer circumferential wall of the hanging connector, the upper end of the outside-pipe packer is connected with the cementing switch tool, the cementing switch tool is sleeved on the upper pressing packer at intervals, the upper end of the upper pressing packer is in threaded connection with a fishing tool, and a touch-pressing rubber plug is arranged in the fishing tool.
Description
Technical field
The utility model relates to the packer capable of circulation of partly cementing the well that uses in a kind of field produces.
Background technology
Along with the development of the continuity of oil field development time and horizontal well, sidetrack horizontal well oil recovery technique, in-situ horizontal well, sidetrack horizontal well well a few days become to increasing, and workover treatment technology and supporting downhole tool more and more cause people's attention.Yet; Usually the conventional packer that uses during workover rig service to oil well at all can not the adaptation level well, the requirement of sidetrack horizontal well; Because the friction effect of casing wall and the bending of working string deep camber; The weight of tubing string can not act on the packer preferably, causes packer not set or poorly sealed, causes mud bigger to oil layer pollution.
Summary of the invention
The purpose of the utility model is to provide a kind of packer capable of circulation of partly cementing the well, and it is simple in structure, sets effectively, can reduce the pollution of mud to oil reservoir effectively, and is easy to use.
The purpose of the utility model is achieved in that a kind of packer capable of circulation of partly cementing the well; Comprise and suppress packer, pressure difference switch, cementing switching tools and suspension joint; The said packer of suppressing is upper and lower two; Upper and lowerly suppress packer is installed in pressure difference switch respectively through being threaded two ends, suspension joint is installed in down through being threaded suppresses the packer lower end; On the periphery wall of suspension joint suit affixed an external packer of pipe; The upper end of external packer of pipe is connecting the cementing switching tools; Cementing switching tools spacer sleeve is contained in to be suppressed on the packer; On suppress packer the upper end through the fishing tool that is being threaded, the bruising plug is installed in fishing tool.
The utility model is owing to have upper and lower packer and the external packer of pipe suppressed, and wherein the annular space between all right packing sleeve pipe of external packer of pipe and the bore hole stops cement paste sinking when cementing the well.Can obtain following effect when using the utility model packer: 1, realize screen casing operation under the circulation limit, limit, improved the safety factor of the smooth G.I.H of completion tubular column.2, be implemented under the completion tubular column behind the precalculated position; With annular space mud inside and outside light oil or the oil layer protection liquid displacement screen casing; Because the upper and lower effect of suppressing packer and external packer of pipe can promote to liberate oil reservoir to greatest extent, reduces the pollution of mud to oil reservoir.3, realize same size well, for convenience has been created in underground work from now on.4, because drilling period has been shortened in half well cementation, practiced thrift drilling cost.5, in well cementing operation, can not adopt the method for moulding plug bruising to replace cement paste, to beat for amount closing well Hou Ning but adopt, this kind method can guarantee to have bored within a certain period of time cement plug.The utility model is simple in structure, and three packers synergy can be carried out packing operation effectively when well cementation, sets effectively, and mud is little to oil layer pollution, is specially adapted to the horizontal well operation, and is easy to use.
Description of drawings
To combine accompanying drawing that the utility model is described further below.
Fig. 1 looks the semi-section structural representation for the master of the utility model;
Fig. 2 is the use mounting structure sketch map of the utility model.
The specific embodiment
A kind of packer capable of circulation of partly cementing the well; As shown in Figure 1; Comprise and suppress packer, pressure difference switch, cementing switching tools and suspension joint; The said packer of suppressing is upper and lower two, upper and lowerly suppresses packer 2,5 is installed in pressure difference switch 4 respectively through being threaded two ends, and pressure difference switch 4 makes and can carry out pressure release when suppressing liquid arrives set pressure.Upper and lower suppressing is being provided with plunger shaft 12,13 respectively in the packer 2,5.Can order about the upper and lower packer 2,5 of suppressing in the pressure fluid entering plunger shaft 12,13 and set, in order to the inner space of setting pipe external packer 6.Suspension joint 7 is installed in down through being threaded suppresses packer 5 lower ends.On the periphery wall of suspension joint 7 suit affixed an external packer of pipe 6, have plunger shaft 10 in the outer sleeve 9 of external packer of pipe 6 upper ends, the bottom of shell 9 is fixed together through shear pin 8 inner sleeve 11 with external packer of pipe 6.The upper end of external packer of pipe 6 is connecting cementing switching tools 3, and cementing switching tools 3 spacer sleeves are contained in to be suppressed on the packer 2, the cement paste cycling switch when cementing switching tools 3 is cemented the well in order to conduct.When suppressing; The upper and lower packer 2,5 of suppressing moves; Upper and lower part, space in the external packer of pipe 6 is set respectively, and pressure difference switch 4 actions make pressure fluid get into the plunger shaft 10 of external packer of pipe 6 upper ends then, order about external packer of pipe 6 and set; Make external packer of pipe 6 can the packing sleeve pipe and bore hole between annular space, cement paste sinks when stoping well cementation.On suppress packer 2 the upper end through the fishing tool 1 that is being threaded.Fishing tool 1 is in order to salvage tubing string in the bottom.
As shown in Figure 2, bruising plug 20 is installed in fishing tool 1.Suspension joint 7 lower ends are connecting connection ball seat 14, flushing valve 15, insertion tube 16, sealing box cupling 17, circulation valve 18 and roller type guide shoe 19 successively.Wherein: guide shoe 19 is gone into well in order to the guiding completion tubular column; Circulation valve 18 gets in the completion tubular column in order to prevent reservoir sand; Sealing box cupling 17 is in order to the sealing insertion tube, and the turn on pump circulation time makes liquid flow out from the guide shoe hydrophthalmia of bottommost; Flushing valve 15 be used for expanding tube sealing external packer 6 with open cementing switching tools 3; Being communicated with ball seat 14 presses and pressure release in order to sprain; Bruising plug 20 is in order to isolate the sieve tube segment of completion tubular column, cement paste sinking polluted reservoir when preventing to cement the well.
Claims (2)
- One and half the well cementation packer capable of circulation; Comprise and suppress packer, pressure difference switch, cementing switching tools and suspension joint; It is characterized in that: the said packer of suppressing is upper and lower two; Upper and lowerly suppress packer (2), (5) are installed in pressure difference switch (4) respectively through being threaded two ends, suspension joint (7) is installed in down through being threaded suppresses packer (5) lower end; On the periphery wall of suspension joint (7) suit affixed an external packer of pipe (6); The upper end of external packer of pipe (6) is connecting cementing switching tools (3); Cementing switching tools (3) spacer sleeve is contained in to be suppressed on the packer (2); On suppress packer (2) the upper end through the fishing tool that is being threaded (1), bruising plug (20) is installed in fishing tool (1).
- 2. the packer capable of circulation of partly cementing the well according to claim 1 is characterized in that: suspension joint (7) lower end is connecting connection ball seat (14), flushing valve (15), insertion tube (16), sealing box cupling (17), circulation valve (18) and roller type guide shoe (19) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202801114U CN202157780U (en) | 2011-08-03 | 2011-08-03 | Semi-cementing recyclable packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202801114U CN202157780U (en) | 2011-08-03 | 2011-08-03 | Semi-cementing recyclable packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202157780U true CN202157780U (en) | 2012-03-07 |
Family
ID=45765421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202801114U Expired - Lifetime CN202157780U (en) | 2011-08-03 | 2011-08-03 | Semi-cementing recyclable packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202157780U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269246A (en) * | 2017-08-09 | 2017-10-20 | 新疆永升能源有限责任公司 | A kind of cementing tool |
-
2011
- 2011-08-03 CN CN2011202801114U patent/CN202157780U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269246A (en) * | 2017-08-09 | 2017-10-20 | 新疆永升能源有限责任公司 | A kind of cementing tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 834009, Tianchi South District, the Xinjiang Uygur Autonomous Region, Karamay 40-2-1 Patentee after: XINJIANG YONGSHENG ENERGY CO., LTD. Address before: 834000, No. 100, gateway Road, white alkali beach area, the Xinjiang Uygur Autonomous Region, Karamay Patentee before: Karamay Tallinn Petroleum Engineering Technology Services Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120307 |