CN2426521Y - Anchoring type washable well packer - Google Patents
Anchoring type washable well packer Download PDFInfo
- Publication number
- CN2426521Y CN2426521Y CN 00213730 CN00213730U CN2426521Y CN 2426521 Y CN2426521 Y CN 2426521Y CN 00213730 CN00213730 CN 00213730 CN 00213730 U CN00213730 U CN 00213730U CN 2426521 Y CN2426521 Y CN 2426521Y
- Authority
- CN
- China
- Prior art keywords
- packer
- well
- flushing
- cone
- slips
- 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
- 238000004873 anchoring Methods 0.000 title claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 238000011010 flushing procedure Methods 0.000 claims description 32
- 238000005406 washing Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- 238000002347 injection Methods 0.000 abstract description 8
- 239000007924 injection Substances 0.000 abstract description 8
- 238000011001 backwashing Methods 0.000 abstract description 3
- 238000012856 packing Methods 0.000 description 8
- 230000007547 defect Effects 0.000 description 2
- 230000037361 pathway Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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- Earth Drilling (AREA)
Abstract
An anchored washable well packer has an anchoring device comprising a cone, slips, slip sleeves and shear pins, which are connected to the sealing element and locking mechanism of the packer. The packer can effectively control the phenomenon that the packer longitudinally moves, avoid the damage of a rubber sleeve, improve the sealing pressure difference and ensure safe and reliable layered water injection. The packer also has a well backwashing function, a balance cavity is arranged in a well backwashing component, and the packer is automatically closed during water injection.
Description
The utility model relates to the sealing or the packing of well or well, relates in particular to a kind of grappling formula washing well packer.
On the 29th page of " petroleum machinery " 1998 the 7th phase, deliver one piece and be entitled as the article of " DGY341-114 type water injection packer ", disclose a kind of water injection well packer.Its purpose is to be used for seperated layer water injection in that oil-field flooding is aboveground.Its structure comprises mechanism and parts such as well-flushing, seat envelope, sealing, locking and deblocking.Its shortcoming and defect part is to be used with hydraulic anchor, can not use separately, makes that equipment increases, cost improves.Because no anchoring device can make packer produce under differential pressure action and vertically move, its result causes that 1. seal is fragile, makes packer shortening in application life, influences oil well production when using separately; 2. the packing position is inaccurate, causes phenomenons such as channelling, has not both reached the layering purpose, causes formation damage again.
The purpose of this utility model is can effectively control packer and vertically move good sealing effect, the grappling formula washing well packer that cost is low, safe and reliable for fear of provide a kind of with the shortcoming and defect part that overcomes above-mentioned prior art.
The purpose of this utility model reaches like this: the grappling formula washing well packer that comprises mechanism such as well-flushing, seat envelope, sealing, locking and deblocking and parts, set up anchoring device, comprise cone, slips, slip sleeve and shear pin, it is connected with retaining mechanism with the packer sealing parts, control vertically moving of packer effectively, made the packing position accurate, prolonged life cycle simultaneously, reduce cost, reached seperated layer water injection and safe and reliable purpose.
The purpose of this utility model can also reach with following measure: the anchoring device of grappling formula washing well packer comprises cone, slips, slip sleeve and shear pin.Dovetail groove is arranged on the cone, and cone matches with slips by dovetail groove.There are square hole, slips to install wherein on the slip sleeve.Shear pin is installed on the slip sleeve, fixes with cone.
During use, suppress from oil pipe, fluid enters from the E hole, and the hydraulic drive piston is cut off an offset nail, the compression packing element, and slips opens, the sealing oil sets annular space.The utlity model has the well-flushing passage, back-washable well, behind the well-flushing, well-flushing pathway closure under water injection pressure.
Accompanying drawing drawing of the present utility model is described as follows:
Accompanying drawing is that master of the present utility model looks sectional view.
Below in conjunction with accompanying drawing the utility model is further described:
As accompanying drawing, anchoring device of the present utility model is made of cone 13, slips 14, slip sleeve 15 and shear pin 22.Dovetail groove (in the accompanying drawing being 4) is arranged on the cone 13, and cone matches with the dovetail groove of slips 14; Square hole (in the accompanying drawing being 4) is arranged, in order to slips to be installed on the slip sleeve 15; Shear pin 22 is used for fixing the relative position of slip sleeve and cone.
The well-flushing parts of grappling formula washing well packer are made of joint ring 5, well-flushing cover 3, inner central tube 1, well-flushing piston 6, well-flushing seat 8 and trapezoidal potted component 7.Two seals circle 4 is respectively arranged inside and outside the joint ring 5, make the well-flushing pathway closure after there are 30 ° of conical surfaces well-flushing piston lower end and well-flushing seat 8 closely contacts.Trapezoidal potted component 7 is arranged in the well-flushing seat, and it seals the well-flushing passage when water filling.Joint ring 5 and well-flushing piston 6 are contained in the well-flushing cover 3, and well-flushing seat and well-flushing cover interconnect.
Seal member is made up of packing element 10,12 and spacer ring (11).Seat envelope parts are made up of upper piston 16, seat envelope shear pin 18, inner central tube 1 and gate ring 17.Retaining mechanism is made up of lock tube 21, lock ring 22.
During on-the-spot the use, form the water distribution tubing string by downhole tools such as packer, injection well downhole flow regulator, ball seats.During packer set, in oil pipe, add hydraulic pressure, hydraulic pressure hole E under inner central tube (1) acts on the lower piston (19), seat envelope shear pin (18) is cut off, lower piston (19) moves down, stop to move down after lower piston (19) is gone up the conical surface and deblocking lock dog (20) is contacted, upper piston moves on (16), just compresses packing element, cut off the seat envelope shear pin (22) on the cone, slips opens and the sleeve pipe grappling, and the control packer vertically moves, and the lower end has retaining mechanism to prevent the slips rollback, add mechanical force from well head to oil pipe then, packing element and sleeve pipe are sealed fully, and lower piston this moment (19) blocks with snap (21), and packer is in running order all the time.During deblocking, the upper lifting pipe post moves on the inner central tube, cuts off deblocking shear pin (2), and the step on the exterior central tube (9) drives cone and moves up together, slips and packing element withdrawal, then packer deblocking.
During anti-flushing well, inject water under high pressure from oil sets annular space, liquid stream enters from the water hole (B) of well-flushing cover (3), acts on the well-flushing piston (6), promotes to move on the well-flushing piston (6), annular space through inner central tube and exterior central tube, flow out from the weep hole (C) of exterior central tube, through the annular space of cone and upper piston, at last by the weep hole (D) of upper piston (16) annular space to the packer bottom, thereby form the anti-flushing well passage in packer, water under high pressure enters the oil pipe internal return and goes out.
During water filling, 30 ° of conical surfaces and ladder type potted component that packer matches by well-flushing piston (6) and well-flushing seat (8) make the anti-flushing well channel seal.
The utility model has the following advantages compared to existing technology:
1. realize first well packer capable of flushing well self band grappling function, avoid packer vertical Mobile, improve seal pressure differential, prolong the service life of packer.
2. this packer has the well-flushing passage, and capable of backwashing wells begins water filling behind the well-flushing, But well-flushing piston autoshutdown is reliable with the sealing of well-flushing seat.
Claims (4)
1. grappling formula washing well packer, comprise mechanism and parts such as well-flushing, seat envelope, sealing, locking and deblocking, it is characterized in that also having designed anchoring device, comprise cone (13), slips (14), slip sleeve (15) and shear pin (22), it is connected with retaining mechanism with seal member.
2. grappling formula washing well packer according to claim 1 is characterized in that on the cone (13) dovetail groove being arranged, and cone matches with slips (14) by dovetail groove.
3. grappling formula washing well packer according to claim 1 is characterized in that on the slip sleeve (15) square hole being arranged, and slips (14) is installed wherein.
4. grappling formula washing well packer according to claim 1 is characterized in that shear pin (22) is installed on the slip sleeve (15), fixes with cone (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00213730 CN2426521Y (en) | 2000-03-15 | 2000-03-15 | Anchoring type washable well packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00213730 CN2426521Y (en) | 2000-03-15 | 2000-03-15 | Anchoring type washable well packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2426521Y true CN2426521Y (en) | 2001-04-11 |
Family
ID=33579964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00213730 Expired - Fee Related CN2426521Y (en) | 2000-03-15 | 2000-03-15 | Anchoring type washable well packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2426521Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213867A (en) * | 2013-06-04 | 2014-12-17 | 中国石油化工股份有限公司 | Multifunctional water well packer |
| CN104373073A (en) * | 2014-10-21 | 2015-02-25 | 中国石油集团长城钻探工程有限公司 | Multilateral well fracturing window sealing tool and process |
| CN108487879A (en) * | 2017-12-20 | 2018-09-04 | 高云东 | A kind of oil layer protection flushing packer |
| CN109577906A (en) * | 2017-09-29 | 2019-04-05 | 中国石油天然气股份有限公司 | Packer (CN) |
| CN109915067A (en) * | 2019-04-25 | 2019-06-21 | 中国海洋石油集团有限公司 | A kind of anti-packer surprisingly unsealed |
| CN110424922A (en) * | 2019-08-05 | 2019-11-08 | 中国石油天然气股份有限公司 | Non-metal anchoring packer backwashing method |
-
2000
- 2000-03-15 CN CN 00213730 patent/CN2426521Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213867A (en) * | 2013-06-04 | 2014-12-17 | 中国石油化工股份有限公司 | Multifunctional water well packer |
| CN104213867B (en) * | 2013-06-04 | 2018-02-27 | 中国石油化工股份有限公司 | A kind of multi-functional Water well packer |
| CN104373073A (en) * | 2014-10-21 | 2015-02-25 | 中国石油集团长城钻探工程有限公司 | Multilateral well fracturing window sealing tool and process |
| CN109577906A (en) * | 2017-09-29 | 2019-04-05 | 中国石油天然气股份有限公司 | Packer (CN) |
| CN109577906B (en) * | 2017-09-29 | 2021-07-02 | 中国石油天然气股份有限公司 | Packer (CN) |
| CN108487879A (en) * | 2017-12-20 | 2018-09-04 | 高云东 | A kind of oil layer protection flushing packer |
| CN109915067A (en) * | 2019-04-25 | 2019-06-21 | 中国海洋石油集团有限公司 | A kind of anti-packer surprisingly unsealed |
| CN110424922A (en) * | 2019-08-05 | 2019-11-08 | 中国石油天然气股份有限公司 | Non-metal anchoring packer backwashing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |