CN203188965U - Holding clamping position limiting type small-diameter step-by-step deblocking packer - Google Patents
Holding clamping position limiting type small-diameter step-by-step deblocking packer Download PDFInfo
- Publication number
- CN203188965U CN203188965U CN 201320231052 CN201320231052U CN203188965U CN 203188965 U CN203188965 U CN 203188965U CN 201320231052 CN201320231052 CN 201320231052 CN 201320231052 U CN201320231052 U CN 201320231052U CN 203188965 U CN203188965 U CN 203188965U
- Authority
- CN
- China
- Prior art keywords
- piston
- well
- deblocking
- upper joint
- joint sleeve
- 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
Images
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model provides a holding clamping position limiting type small-diameter step-by-step deblocking packer, which mainly solves the problems that the step-by-step deblocking of the existing packer is difficult, and a well washing piston cannot be tightly closed. The holding clamping position limiting type small-diameter step-by-step deblocking packer is characterized in that an upper connecting sleeve (2) is connected outside the lower end of an upper joint (1), an upper center pipe (3) is connected into the lower end of the upper joint (1), a spring claw (7) is arranged outside the upper joint (1) arranged inside the upper connecting sleeve (2), the inner end and the outer end of a sliding pin (6) are respectively arranged on the upper joint (1) and the spring claw (7), a sealing piston (10) is arranged in a center pipe (9) arranged under the upper center pipe (3), a liquid passing hole is formed in the wall of the center pipe (9) corresponding to a position under the sealing piston (10), a well washing piston (11) is arranged outside the lower center pipe (9) of the sealing piston (10), a liquid introducing hole is formed in the upper connecting sleeve (2) corresponding to a position under the well washing piston (11), and a spring is arranged between the sealing piston (10) and a lug boss of the well washing piston (11). The packer has the characteristics that the step-by-step deblocking is easy, and the sealing of the well washing piston is good after the well washing.
Description
Technical field
The utility model relates to the used packer of oil recovery field, oil field separate water injection well, especially embraces the limit-type minor diameter gradually deblocking packer of card.
Background technology
In oil recovery field, oil field, packer is widely used.And existing packer influences oil recovery efficiency because there is the problem that the well-flushing piston fits badly behind gradually deblocking difficulty and the well-flushing in reasons in structure.
Summary of the invention
In order to solve the problem that the well-flushing piston fits badly behind existing packer gradually deblocking difficulty and the well-flushing.The utility model provides a kind of armful of limit-type minor diameter gradually deblocking packer of card.The limit-type minor diameter gradually deblocking packer of this armful card has gradually deblocking easily and the good characteristics of well-flushing piston seal behind the well-flushing.
The technical solution of the utility model is: the limit-type minor diameter gradually deblocking packer of this armful card comprises deblocking device and well washing apparatus.The deblocking device comprises top connection, upper joint sleeve, upper center tube, pin for suppressing metal, deblocking pin, sliding pin and spring detent, the upper joint sleeve upper end is connected outside the top connection lower end by screw thread and pin for suppressing metal, the upper joint sleeve lower end links to each other with regulating sleeve by screw thread, the upper center tube upper end is connected in the top connection lower end by the deblocking pin, the upper center tube lower end links to each other with central tube by screw thread, spring detent places outside the interior top connection of upper joint sleeve, sliding pin the inner is fixed on top connection, and the outer end places in the strip hole of spring detent; Well washing apparatus comprises packed-piston and well-flushing piston, T font packed-piston places between the central tube and upper joint sleeve under the upper center tube, on the center tube wall under the corresponding packed-piston boss liquid pass hole is arranged, the inside and outside groove in packed-piston upper end is built-in with sealing ring, the well-flushing piston places between the central tube and upper joint sleeve under the packed-piston, well-flushing piston lower inside has boss, on the underpiston upper joint sleeve wall of corresponding well-flushing liquid-through hole is arranged, and is equipped with spring between packed-piston and the well-flushing piston boss.
The utlity model has following beneficial effect: this armful limit-type minor diameter gradually deblocking packer of card is owing to adopt the upper joint sleeve upper end to be connected outside the top connection lower end by screw thread and pin for suppressing metal, the upper joint sleeve lower end links to each other with regulating sleeve by screw thread, the upper center tube upper end is connected in the top connection lower end by the deblocking pin, the upper center tube lower end links to each other with central tube by screw thread, spring detent places outside the interior top connection of upper joint sleeve, sliding pin the inner is fixed on top connection, and the outer end places in the strip hole of spring detent; T font packed-piston places between the central tube and upper joint sleeve under the upper center tube, on the center tube wall under the corresponding packed-piston boss liquid pass hole is arranged, the inside and outside groove in packed-piston upper end is built-in with sealing ring, the well-flushing piston places between the central tube and upper joint sleeve under the packed-piston, well-flushing piston lower inside has boss, on the underpiston upper joint sleeve wall of corresponding well-flushing liquid-through hole is arranged, be equipped with spring between packed-piston and the well-flushing piston boss.During the upper lifting pipe post, utilize very little upper lifting force to cut off the deblocking pin, central tube and top connection are broken away from, realize the packer deblocking, continue the upper lifting pipe post, realize next stage packer deblocking.Add shock mount on well-flushing piston top, solve the relatively large well of interlayer pressure difference well-flushing piston behind the well-flushing fit badly cause anti-flushing well after packer can not effective seal problem, can under water injection pressure and spring acting in conjunction, make well-flushing piston return with well-flushing piston after guaranteeing anti-flushing well.The limit-type minor diameter gradually deblocking packer of this armful card has gradually deblocking easily and the good characteristics of well-flushing piston seal behind the well-flushing thus.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model.
1-top connection among the figure, 2-upper joint sleeve, 3-upper center tube, 4-pin for suppressing metal, 5-deblocking pin, 6-sliding pin, 7-spring detent, 8-regulating sleeve, 9-central tube, 10-packed-piston, 11-well-flushing piston.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, the limit-type minor diameter gradually deblocking packer of this armful card comprises deblocking device and well washing apparatus, it is characterized in that: the deblocking device comprises top connection 1, upper joint sleeve 2, upper center tube 3, pin for suppressing metal 4, deblocking pin 5, sliding pin 6 and spring detent 7, upper joint sleeve 2 upper ends are connected outside top connection 1 lower end by screw thread and pin for suppressing metal 4, upper joint sleeve 2 lower ends link to each other with regulating sleeve 8 by screw thread, upper center tube 3 upper ends are connected in top connection 1 lower end by deblocking pin 5, upper center tube 3 lower ends link to each other with central tube 9 by screw thread, spring detent 7 places outside the top connection 1 in the upper joint sleeve 2, sliding pin 6 the inners are fixed on top connection 1, and the outer end places in the strip hole of spring detent 7; Well washing apparatus comprises packed-piston 10 and well-flushing piston 11, T font packed-piston 10 places between the central tube 9 and upper joint sleeve 2 under the upper center tube 3, on central tube 9 walls under corresponding packed-piston 10 boss liquid pass hole is arranged, the inside and outside groove in packed-piston 10 upper ends is built-in with sealing ring, well-flushing piston 11 places between the central tube 9 and upper joint sleeve 2 under the packed-piston 10, well-flushing piston 11 lower inside have boss, on upper joint sleeve 2 walls under the corresponding well-flushing piston 11 liquid-through hole is arranged, be equipped with spring between packed-piston 10 and well-flushing piston 11 boss.This armful limit-type minor diameter gradually deblocking packer of card is owing to add shock mount on well-flushing piston top, solve the relatively large well of interlayer pressure difference well-flushing piston behind the well-flushing fit badly cause anti-flushing well after packer can not effective seal problem, can under water injection pressure and spring acting in conjunction, make well-flushing piston return with well-flushing piston after guaranteeing anti-flushing well.The limit-type minor diameter gradually deblocking packer of this armful card adopts gradually deblocking formula structure design, and deblocking power is not limited by progression, can solve cover preferably and decrease separate water injection well and use conventional pony packer in the progression problem of deblocking difficulty more for a long time.
During actual the use:
During anti-flushing well, well-flushing piston 11 is up compression spring and top tight sealing piston 10 under the promotion of flushing fluid, and flushing fluid flows into along liquid pass hole, is flowed out by liquid-through hole again, realizes anti-flushing well.The upper lifting pipe post, with very little upper lifting force deblocking pin 5 is cut off, carry oil pipe in the continuation, upper center tube 3 relatively moves with top connection 1, top connection 1 drives upper joint sleeve 2, regulating sleeve 8 moves upward, and upper center tube 3, spring detent 7, packed-piston 10 move downward, for limit packing element, middle packing element return provide the space, packing element is return under elastic reaction, realizes the packer deblocking.Carry oil pipe upper joint sleeve 2 connection regulating sleeves 8 in the continuation and block packed-piston 10, upper center tube 3 up realization next stage packer deblocking together.
Claims (1)
1. embrace the limit-type minor diameter gradually deblocking packer of card for one kind, comprise deblocking device and well washing apparatus, it is characterized in that: the deblocking device comprises top connection (1), upper joint sleeve (2), upper center tube (3), pin for suppressing metal (4), deblocking pin (5), sliding pin (6) and spring detent (7), upper joint sleeve (2) upper end is connected outside top connection (1) lower end by screw thread and pin for suppressing metal (4), upper joint sleeve (2) lower end links to each other with regulating sleeve (8) by screw thread, upper center tube (3) upper end is connected in top connection (1) lower end by deblocking pin (5), upper center tube (3) lower end links to each other with central tube (9) by screw thread, spring detent (7) places outside the interior top connection (1) of upper joint sleeve (2), sliding pin (6) the inner is fixed on top connection (1), and the outer end places in the strip hole of spring detent (7); Well washing apparatus comprises packed-piston (10) and well-flushing piston (11), T font packed-piston (10) places between the central tube (9) and upper joint sleeve (2) under the upper center tube (3), on central tube (9) wall under corresponding packed-piston (10) boss liquid pass hole is arranged, the inside and outside groove in packed-piston (10) upper end is built-in with sealing ring, well-flushing piston (11) places between the central tube (9) and upper joint sleeve (2) under the packed-piston (10), well-flushing piston (11) lower inside has boss, on upper joint sleeve (2) wall under the corresponding well-flushing piston (11) liquid-through hole is arranged, be equipped with spring between packed-piston (10) and well-flushing piston (11) boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320231052 CN203188965U (en) | 2013-05-02 | 2013-05-02 | Holding clamping position limiting type small-diameter step-by-step deblocking packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320231052 CN203188965U (en) | 2013-05-02 | 2013-05-02 | Holding clamping position limiting type small-diameter step-by-step deblocking packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203188965U true CN203188965U (en) | 2013-09-11 |
Family
ID=49105831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320231052 Expired - Fee Related CN203188965U (en) | 2013-05-02 | 2013-05-02 | Holding clamping position limiting type small-diameter step-by-step deblocking packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203188965U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756608A (en) * | 2014-12-16 | 2016-07-13 | 中国石油天然气股份有限公司 | Step by step release packer |
| CN111058793A (en) * | 2018-10-16 | 2020-04-24 | 中国石油化工股份有限公司 | Gradual unsealing device |
-
2013
- 2013-05-02 CN CN 201320231052 patent/CN203188965U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756608A (en) * | 2014-12-16 | 2016-07-13 | 中国石油天然气股份有限公司 | Step by step release packer |
| CN105756608B (en) * | 2014-12-16 | 2018-11-16 | 中国石油天然气股份有限公司 | A kind of gradually deblocking packer |
| CN111058793A (en) * | 2018-10-16 | 2020-04-24 | 中国石油化工股份有限公司 | Gradual unsealing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203188965U (en) | Holding clamping position limiting type small-diameter step-by-step deblocking packer | |
| CN104389548A (en) | High temperature and high pressure resistance tubing packer | |
| CN204436323U (en) | Hollow bridging plug packer elasticity packing element | |
| CN203925962U (en) | The isometrical hydraulic feedback oil of upper lower plunger | |
| CN202645521U (en) | Horizontal well injecting and extracting pipe column of gas reservoir | |
| CN204357379U (en) | Continuous sand flushing washes down device | |
| CN204283318U (en) | High temperature high voltage resistant tubing packer | |
| CN204186324U (en) | A kind of drilling rod sand prevention bypass valve | |
| CN204371206U (en) | Blanking plug | |
| CN203499608U (en) | Multifunctional sand flushing and well washing valve | |
| CN204327458U (en) | Two fixing antiscale card long plunger type sand-control oil well pump | |
| CN202937207U (en) | Special electric submersible pump well head for oil extraction | |
| CN105570118A (en) | Tubing pump standing valve | |
| CN201193602Y (en) | Composite selective mining pump with rod pump and electric submersible pump | |
| CN204436322U (en) | Packer elasticity packing element | |
| CN204592444U (en) | A kind of cementing truck outlet line Anti-overflow device | |
| CN202690392U (en) | Double-tail pipe sand settling type oil extraction pump | |
| CN201513151U (en) | Well-flushing packer | |
| CN202531115U (en) | Waterpower pump for oil well | |
| CN203129998U (en) | Device capable of washing well | |
| CN202628071U (en) | Novel horizontal well female joint weighting rod | |
| CN202867145U (en) | Small displacement solid plunger oil well pump | |
| CN202431249U (en) | Anti-jamming packer | |
| CN202866761U (en) | Strong-releasing type leakage-preventing well washing oil production device | |
| CN201198749Y (en) | Leather cup self-sealing type reverse circulation valve |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 |