CN203716917U - Hydraulic control compression packer - Google Patents
Hydraulic control compression packer Download PDFInfo
- Publication number
- CN203716917U CN203716917U CN201320877055.1U CN201320877055U CN203716917U CN 203716917 U CN203716917 U CN 203716917U CN 201320877055 U CN201320877055 U CN 201320877055U CN 203716917 U CN203716917 U CN 203716917U
- Authority
- CN
- China
- Prior art keywords
- hydraulic control
- hole
- compression packer
- control compression
- 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
Links
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a hydraulic control compression packer. The hydraulic control compression packer comprises a central pipe as well as an upper joint and a lower joint which are respectively arranged at the upper end and the lower end of the central pipe; an inner cavity formed after the central pipe and the upper and lower joints are integrally connected forms a through water injection channel; a support sleeve sleeves the central pipe; an annular hollow channel is formed between the support sleeve and the central pipe; the upper joint is also provided with an upper through hole connected with an upper hydraulic control pipeline; the lower joint is also provided with a lower through hole connected with a lower hydraulic control pipeline; the upper and lower ends of the annular hollow pipeline are respectively jointed and communicated with the upper through hole and the lower through hole and form a liquid control channel relatively independent from the water injection channel. A rubber drum sleeves the support sleeve, and the lower end of the rubber drum is connected with a seat unsealing device. According to the hydraulic control compression packer, the percent of pass of separation of layer sections of a separate injection well is favorably and greatly improved, the service life of the separate injection well is favorably and greatly prolonged, particularly, under the complex well conditions of large oblique wells, long well sections, large interlayer pressure difference and the like, the service life of the separate injection well is favorably prolonged, and the operation cost of the injection well is reduced.
Description
Technical field
The utility model relates to the packer that oil development is used with seperated layer water injection, specifically a kind of hydraulic control compression packer.
Background technology
Seperated layer water injection is to improve the leading technique of the one of water-drive pool floood conformance rate and recovery ratio, and layer separating packer is the key tool of down-hole each section layer by layer packing.At present, the layer separating packer of employing mainly contains two kinds, is respectively compression layer separating packer and expanding layer separating packer.Due to the reason such as injection water quality, downhole scaling, water injection well needs regular well-flushing.Compression packer adopts flushing valve structure well-flushing, and on the one hand, well-flushing passage is little, and tubing string is difficult for wash clean; The easy fouling of flushing valve on the other hand, damage, cause flushing valve to fit badly, do not open, and packer was lost efficacy; Inflatable packer is by downhole water flow regulator water nozzle chock pressure difference, packing element expansion to be set, and when water nozzle and injection well downhole flow regulator flow check piston are stung bad time, chock pressure difference diminishes, and packer lost efficacy.For solving the contradiction due to layering and well-flushing in separate water injection well, cause the packer short problem of period of validity of normally working.
Summary of the invention
The purpose of this utility model is to provide a kind of hydraulic control compression packer, be conducive to increase substantially the interval layering qualification rate and use useful life of separate water injection well, especially under the complex hole condition such as large hole deviation, long well section, interlayer pressure difference are large, be conducive to extend separate water injection well application life, reduce water injection well operation and cost.
In order to reach above-mentioned purpose, the utility model has adopted following technical scheme, a kind of hydraulic control compression packer, comprise central tube and be arranged on respectively top connection and the lower contact of central tube upper and lower side, connect into overall rear interior cavity and form the waterflood path connecting, a support set of the outside suit of described central tube, between described support set and central tube, form annulus access, described top connection also offers the upper through hole being connected with upper liquid controling pipe line, described lower contact also offers the lower through-hole being connected with lower liquid controling pipe line, described annulus access upper and lower side is docked and connected with upper through hole and lower through-hole respectively, and the hydraulic control passage that formation and waterflood path are relatively independent.
Described support set outer cover is equipped with packing element, and packing element lower end connects sits deblocking device.
Between described packing element upper end and top connection, adjustable ring is installed, between lower end and seat deblocking device, lower adjustable ring is installed.
Described seat deblocking device comprises cylinder sleeve, piston, described cylinder sleeve upper end is connected to lower adjustable ring inwall, and lower end is connected in lower contact by setting shear pin, forms cylinder chamber between described cylinder sleeve and support set, this cylinder chamber and hydraulic control channel connection, arrange a piston in described cylinder chamber.
Between described piston inner wall and support set outer wall, sealing ring is set, between described piston outer wall and inboard wall of cylinder liner, sealing ring is set, between described cylinder sleeve and lower contact, be also provided with sealing ring.
Described upper liquid controling pipe line and upper through hole junction are provided with nail pressing, and described lower liquid controling pipe line and lower through-hole junction are also provided with nail pressing.
Compared to prior art, the utlity model has following beneficial effect:
Each layer of the down-hole water filling current of this packer flow through from central tube, and control packer setting or deblocking by other hydraulic control passage control, and both are independent; Can be in separate water injection well, the interval large to interlayer difference, implements downhole interval packing, reaches the object of effective layering; And when deblocking, packing element effectively bounces back, the overcurrent annular space area that packer and sleeve pipe form is large, meets the regular high flow rate washover requirement of water injection well.This utility model is conducive to increase substantially the interval layering qualification rate and use useful life of separate water injection well, especially under the complex hole condition such as large hole deviation, long well section, interlayer pressure difference are large, be conducive to extend separate water injection well application life, reduce water injection well operation and cost.
(1) setting with deblocking of this packer passed through independently hydraulic control passage control, and packer layered reliability is high, and deblocking is fast, well-flushing passage is large, be difficult for obstruction, and water injection well layering period of validity is long.
(2) interlayer packing pressure can directly be controlled by ground, for the large water injection well strong adaptability of interlayer pressure difference.
(3) set pressure by setting shear pin control, go into the well safe and reliable.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of hydraulic control compression packer of the present utility model.
In figure: go up liquid controling pipe line 1, nail pressing 2, top connection 3, upper adjustable ring 4, support set 5, packing element 6, central tube 7, lower adjustable ring 8, piston 9, cylinder sleeve 10, lower contact 11, set shear pin 12.
Detailed description of the invention
Relevant detailed description of the present utility model and technology contents, coordinate brief description of the drawings as follows, but accompanying drawing only provides the use of reference with explanation, is not used for the utility model to be limited.
As shown in Figure 1, a kind of hydraulic control compression packer, comprise central tube 7 and be arranged on respectively top connection 3 and the lower contact 11 of central tube upper and lower side, connect into overall rear interior cavity and form the waterflood path connecting, a support set 5 of the outside suit of described central tube, between described support set and central tube, form annulus access, described top connection also offers the upper through hole being connected with upper liquid controling pipe line 1, described lower contact also offers the lower through-hole being connected with lower liquid controling pipe line, described annulus access upper and lower side is docked and connected with upper through hole and lower through-hole respectively, and the hydraulic control passage that formation and waterflood path are relatively independent.Described support set outer cover is equipped with packing element 6, and packing element lower end connects sits deblocking device.Adjustable ring 4 is installed between described packing element upper end and top connection, between lower end and seat deblocking device, lower adjustable ring 8 is installed.Described seat deblocking device comprises cylinder sleeve 10, piston 9, described cylinder sleeve upper end is connected to lower adjustable ring inwall, and lower end is connected in lower contact by setting shear pin 12, forms cylinder chamber between described cylinder sleeve and support set, this cylinder chamber and hydraulic control channel connection, arrange a piston in described cylinder chamber.
Between described piston inner wall and support set outer wall, sealing ring is set, between described piston outer wall and inboard wall of cylinder liner, sealing ring is set, between described cylinder sleeve and lower contact, be also provided with sealing ring.Described upper liquid controling pipe line and upper through hole junction are provided with nail pressing 2, and described lower liquid controling pipe line and lower through-hole junction are also provided with nail pressing.
Described top connection 3 is threaded with central tube 7, support set 5 and upper adjustable ring 4 use respectively, described central tube 7 use screw thread tops connect top connection 3, bottom connects lower contact 11, described packing element 6 is enclosed within outside support set 5, between upper adjustable ring 4 and lower adjustable ring 8, described cylinder sleeve 10 is threaded with lower adjustable ring 8 use, described piston 9 between cylinder sleeve 10 and support set 5, described in set shear pin 12 use screw threads and be fixed in cylinder sleeve 10 and lower contact 11.
Wherein said top connection 3 middle and upper parts are drilled with 1 through hole, be connected with top liquid controling pipe line 1, described liquid controling pipe line 1 use nail pressing 2 is fixing, nail pressing 2 is connected with top connection 3 screw threads, form with water filling path mutually independently, the hydraulic control passage of control packer setting or deblocking, described lower contact 11 is whole is drilled with 1 through hole, be connected with bottom liquid controling pipe line, going down fluid control pressure, to control next stage packer.
This packer adopts independently hydraulic control passage, controls packer setting and deblocking, in the time of packer setting, realizes the each interval packing in down-hole that seperated layer water injection needs; In the time of removing seal for packer, realize large discharge capacity anti-flushing well.
The foregoing is only preferred embodiment of the present utility model, non-in order to limit the scope of the claims of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to the scope of the claims of the present utility model.
Claims (1)
1. a hydraulic control compression packer, comprise central tube and be arranged on respectively top connection and the lower contact of central tube upper and lower side, connect into overall rear interior cavity and form the waterflood path connecting, it is characterized in that, a support set of the outside suit of described central tube, between described support set and central tube, form annulus access, described top connection also offers the upper through hole being connected with upper liquid controling pipe line, described lower contact also offers the lower through-hole being connected with lower liquid controling pipe line, described annulus access upper and lower side is docked and connected with upper through hole and lower through-hole respectively, and the hydraulic control passage that formation and waterflood path are relatively independent.
2. a kind of hydraulic control compression packer according to claim 1, is characterized in that, described support set outer cover is equipped with packing element, and packing element lower end connects sits deblocking device.
3. a kind of hydraulic control compression packer according to claim 2, is characterized in that, between described packing element upper end and top connection, adjustable ring is installed, and between lower end and seat deblocking device, lower adjustable ring is installed.
4. a kind of hydraulic control compression packer according to claim 3, it is characterized in that, described seat deblocking device comprises cylinder sleeve, piston, described cylinder sleeve upper end is connected to lower adjustable ring inwall, lower end is connected in lower contact by setting shear pin, between described cylinder sleeve and support set, form cylinder chamber, this cylinder chamber and hydraulic control channel connection, arrange a piston in described cylinder chamber.
5. a kind of hydraulic control compression packer according to claim 4, it is characterized in that, between described piston inner wall and support set outer wall, sealing ring is set, between described piston outer wall and inboard wall of cylinder liner, sealing ring is set, between described cylinder sleeve and lower contact, be also provided with sealing ring.
6. a kind of hydraulic control compression packer according to claim 1, is characterized in that, described upper liquid controling pipe line and upper through hole junction are provided with nail pressing, and described lower liquid controling pipe line and lower through-hole junction are also provided with nail pressing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320877055.1U CN203716917U (en) | 2013-12-09 | 2013-12-30 | Hydraulic control compression packer |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320800794 | 2013-12-09 | ||
| CN201320800794.0 | 2013-12-09 | ||
| CN201320877055.1U CN203716917U (en) | 2013-12-09 | 2013-12-30 | Hydraulic control compression packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203716917U true CN203716917U (en) | 2014-07-16 |
Family
ID=51156082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320877055.1U Expired - Fee Related CN203716917U (en) | 2013-12-09 | 2013-12-30 | Hydraulic control compression packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203716917U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695892A (en) * | 2013-12-09 | 2015-06-10 | 中国石油化工股份有限公司 | Independent hydraulic control compression packer |
-
2013
- 2013-12-30 CN CN201320877055.1U patent/CN203716917U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695892A (en) * | 2013-12-09 | 2015-06-10 | 中国石油化工股份有限公司 | Independent hydraulic control compression packer |
| CN104695892B (en) * | 2013-12-09 | 2019-07-05 | 中国石油化工股份有限公司 | A kind of independent hydraulically-controlled type compression packer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104695892A (en) | Independent hydraulic control compression packer | |
| CN102071900B (en) | Custom-pressure expandable naked eye packer | |
| CN101737019B (en) | Release packer capable of well-flushing | |
| CN204532262U (en) | Down-hole multilevel flow control valve | |
| CN203420662U (en) | Small-diameter oil pipe plug | |
| CN202745789U (en) | Wellhead dual-seal coiled tubing hanging device | |
| CN203420663U (en) | Water injection well packer capable of being unsealed level by level | |
| CN201622177U (en) | Pressure testing device of blowout preventer | |
| CN107630696A (en) | The underground pressure testing device and its pressure-measuring method of a kind of ground blowout hookup | |
| CN107916910A (en) | Independent hydraulic control packer pressure valve | |
| CN203716917U (en) | Hydraulic control compression packer | |
| CN206830131U (en) | A kind of water injection well sand setting constant pressure check valve | |
| CN202300216U (en) | Connecting device for deblocking down-hole string | |
| CN203499628U (en) | Well washing type step-by-step deblocking expandable long rubber sleeve packer | |
| CN104019030B (en) | A kind of reacting cycle liquid drives the discharge device of oil pumping screw pump | |
| CN202810773U (en) | Balanced stage-by-stage unpacking washable well packer | |
| CN202745798U (en) | Layered water injection centering packer of directional well | |
| CN203879447U (en) | Expansion type one-way leakproof packer | |
| CN206158663U (en) | Minor diameter double -piston ground liquid accuse compression packer | |
| CN201786295U (en) | Pressure regulating well washing machine | |
| CN201771467U (en) | Under-balance well completion tool | |
| CN201310314Y (en) | Multipurpose retrievable type blocking throttleer | |
| CN106703740B (en) | Bi-directional compression packer inside and outside hydraulically-controlled type | |
| CN102996095A (en) | Well washing type step-by-step deblocking expanding long rubber barrel packer | |
| CN108397185B (en) | Quick test tube post of cable layering |
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: 20140716 Termination date: 20141230 |
|
| EXPY | Termination of patent right or utility model |