CN2837504Y - Water-proof oil production packer - Google Patents
Water-proof oil production packer Download PDFInfo
- Publication number
- CN2837504Y CN2837504Y CN 200520141928 CN200520141928U CN2837504Y CN 2837504 Y CN2837504 Y CN 2837504Y CN 200520141928 CN200520141928 CN 200520141928 CN 200520141928 U CN200520141928 U CN 200520141928U CN 2837504 Y CN2837504 Y CN 2837504Y
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- China
- Prior art keywords
- center tube
- cylinder
- piston
- jump ring
- deblocking
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- 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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- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 238000012856 packing Methods 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 239000012530 fluid Substances 0.000 claims description 30
- 239000010985 leather Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 abstract 3
- 238000010168 coupling process Methods 0.000 abstract 3
- 238000005859 coupling reaction Methods 0.000 abstract 3
- 238000000605 extraction Methods 0.000 abstract 2
- 239000002131 composite material Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 235000020681 well water Nutrition 0.000 description 3
- 239000002349 well water Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
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Abstract
A water-proof oil extraction packer is applied to a water-proof oil extraction well with damaged upper casing pipes or upper effluent. By top connection, coupling, go up center tube, go up the packing element, down packing element and hydraulic pressure setting lift deblocking mechanism constitutes its characterized in that: the upper joint is in threaded connection with the coupling, the lower part of the coupling is connected with the upper central pipe, and the outer wall of the upper central pipe is sleeved with two packer rubber cylinders. The lower end of the upper central tube is connected with a hydraulic setting and up-lifting deblocking mechanism. The lower center tube is in threaded connection with the lower end of the upper center tube, the lower end of the lower center tube is connected with an upper hydraulic cylinder, a piston is arranged in the upper hydraulic cylinder, a clamp spring groove hydraulic cylinder is sleeved outside the lower center tube, a clamp spring groove is arranged in the clamp spring groove hydraulic cylinder, a clamp spring is arranged between the lower center tube and the clamp spring groove hydraulic cylinder, and the upper piston and the upper hydraulic cylinder are connected to the lower portion of the lower center tube. The deblocking rivet is at the upper end of the lower center tube. The method has the advantages that 1, double hydraulic cylinders are adopted for hydraulic setting and lifting for deblocking; 2. a composite sealing mode; 3. the unsealing operation is simple and convenient.
Description
Technical field:
The utility model relates to a kind of Wel packing, particularly a kind of packing instrument that is applied to the oil recovery of casing failure well water proof.Be applicable to the upper strata sleeve pipe damage of cased hole completion or the water proof producing well of upper strata water outlet.
Background technology:
Owing to reasons such as corrosion, big section often appears in the sleeve pipe on oil reservoir top to be damaged.Casing failure well increasing influenced Oilfield developing greatly.Particularly low yield poor efficiency well adopts technical measures recovery oil wells such as casing patching, and input cost is too high.Mainly adopt water pack off for this class casing damaged well.Main way is on oil reservoir top, and the position that parts casing pipe is intact under the water layer is provided with packer, and traditional water proof production packer often adopts Y111 type, Y341 type, Y453 type and permanent packer.Y111 type packer is to press down tubing string because of the method for setting, and this method can make tubing bending, influences oil pipe application life; Do not support because of having behind the Y341 type packer setting, be easy to generate wriggling when oil well production, packer sealing easily lost efficacy; And the shortcoming that adopts Y453 type and permanent packer mainly to exist is to set complexity, deblocking difficulty, salvages more difficult after the seal failure.Permanent packer adopts the slips structure, salvages milling slips difficulty.After sand particularly occurring and burying phenomenon, can not deblocking, cause lock of tool drilling, easily cause down-hole accident.Owing to casing corrosion, casing strength reduces simultaneously, adopts the packer operation of band slips, and after the general packer set, slip insert will enter casing wall 1～2mm, easily causes sleeve pipe damage or distortion, is unfavorable for that the oil well later stage is repeatedly every adopting operation.
Summary of the invention:
The purpose of this utility model provides a kind of water proof production packer, and this packer is applicable to that the casing damaged well water proof recovers the oil, the special-purpose packing instrument that adopts hydraulic setting, shaft bottom to support.
The technical solution adopted in the utility model is:
The utility model mainly by top connection, box cupling, upper center tube, go up to carry on packing element, lower rubber cylinder and the hydraulic setting and separate sealing mechanism and form.Its architectural feature is: top connection is threaded with box cupling.The box cupling bottom connects upper center tube.Be with two packing elements on the upper center tube outer wall, promptly go up packing element and lower rubber cylinder.In order to increase the sealing of packing element, the protection packing element can be with a cartridge leather cup in the bottom of last packing element top and lower rubber cylinder respectively, promptly goes up the upper and lower cartridge leather cup of cartridge leather cup.The upper center tube lower end connects to carry on the hydraulic setting separates sealing mechanism.Putting forward the structure of separating sealing mechanism on the hydraulic setting is: lower center tube is threaded in the upper center tube lower end.The lower center tube lower end is connected with fluid cylinder.In the last fluid cylinder upper piston is arranged.Lower center tube is with jump ring tank liquor cylinder outward.Jump ring tank liquor cylinder interior has the jump ring groove.Jump ring is between lower center tube and jump ring tank liquor cylinder.Bottom at upper piston connects lower piston, there is following fluid cylinder the lower piston outside, following fluid cylinder is identical with last fluid cylinder and upper piston with the lower piston structure, the deblocking blind rivet is in the upper end of lower center tube, the deblocking blind rivet links together jump ring and lower center tube, stop screw is fixed together hold-doun nut and following fluid cylinder, and hold-doun nut and lower piston are by screwed connection together.
This packer adopts the working method of shaft bottom support, hydraulic setting, upper lifting pipe post deblocking.Adopting external diameter is that φ 73.03mm oil pipe is lowered to this packer in the φ 139.7mm sleeve pipe, support to the shaft bottom after, when well head applied fluid pressure from oil pipe, liquid promoted to go up fluid cylinder; Simultaneously, following fluid cylinder is broken stop screw, and fluid cylinder in the promotion, last fluid cylinder promote the up and compression packing element of jump ring tank liquor cylinder, simultaneously, strut the cartridge leather cup, realize packer packing oil removal, sleeve pipe annular space.At this moment, jump ring and the engagement of jump ring tank liquor cylinder, retaining mechanism enters locking state, prevents that packing element and packing element leather cup from setting the back and becoming flexible.During the packer deblocking, only need the upper lifting pipe post, break the deblocking blind rivet that connects packer lower center tube and jump ring, retaining mechanism lost efficacy, and under the effect of packing element elastic restoring force, jump ring tank liquor cylinder and jump ring are descending with respect to the packer lower center tube, the packer deblocking.
Major advantage of the present utility model and beneficial effect::
1, the mode that adopts biliquid cylinder hydraulic setting, shaft bottom to support:
The mode that the utility model adopts the shaft bottom to support, under the situation of packer bottom tail pipe support less than 100m, the creeping deformation that has prevented packing element is supported in the shaft bottom, increased the application life of packer, the mode of shaft bottom support has simultaneously overcome the damage of slips support to sleeve pipe, has prolonged the cover tube lifetime.
2, adopted the compound seal mode:
Adopt the twin-stage packing element to increase sealing effectiveness, simultaneously in order further to strengthen sealing effectiveness, two cartridge leather cups have up and down been designed, has two-way self sealing action, when packer upper liquid pressure was higher, the expansion of lower rubber cylinder sealing cup contacted tightr with casing wall, when packer lower liquid pressure is higher, last packing element sealing cup expansion contacts tightr with casing wall, improved the sealing effectiveness of packer.Being used in combination of packing element and packing element leather cup strengthened the sealing of packer greatly.
3, unsealing operation is easy.Adopt hydraulic setting, shaft bottom to support, be applicable to that the casing damaged well water proof recovers the oil.
Twin packer of the present utility model, double leather cup, and put forward the deblocking mechanism design on the hydraulic setting bigger improvement is arranged, make it improve seal operation convenience etc., on practicality and the manufacturing cost, all meet the needs of producing well fully and produced handy and practical effect.It is a new and innovative, progressive, practical new design.
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
Description of drawings
Accompanying drawing is a structural profile schematic diagram of the present utility model.Be an embodiment of the present utility model.
Among the figure, 1. top connection, 2. box cupling, 3. upper center tube is 4. gone up the cartridge leather cup, 5. goes up packing element, 6. lower rubber cylinder, 7. lower seal packing element leather cup, 8. jump ring tank liquor cylinder, 9. deblocking blind rivet, 10. lower center tube, 11. jump rings, 12. last fluid cylinder, 13. upper pistons, 14. times fluid cylinders, 15. lower piston, 16. stop screws, 17. hold-doun nuts.
The specific embodiment
Embodiment:
Consult accompanying drawing.Top connection (1) is threaded with box cupling (2).Box cupling (2) bottom connects upper center tube (3).Be with two packing elements on upper center tube (3) outer wall, promptly go up packing element (5) and lower rubber cylinder (6).Upper center tube (3) lower end connects to carry on the hydraulic setting separates sealing mechanism.Putting forward the structure of separating sealing mechanism on the hydraulic setting is: lower center tube (10) is threaded in upper center tube (3) lower end, and lower center tube (10) lower end is connected with fluid cylinder (12), and upper piston (13) is arranged in the last fluid cylinder (12).Lower center tube (10) is outer to be with jump ring tank liquor cylinder (8), and there is the jump ring groove jump ring tank liquor cylinder (8) inside, and jump ring (11) is between lower center tube (10) and jump ring tank liquor cylinder (8).Bottom at upper piston (13) connects lower piston (15), and there is following fluid cylinder (14) lower piston (15) outside.Following fluid cylinder (14) is identical with upper piston (13) with last fluid cylinder (12) with lower piston (15) structure, and deblocking blind rivet (9) is in the upper end of lower center tube (10), and deblocking blind rivet 9 is that jump ring (11) and lower center tube (10) are linked together.Stop screw (16) is fixed together hold-doun nut (17) and following fluid cylinder (14), and hold-doun nut (17) and lower piston (15) are by screwed connection together.
This packer adopts the working method of shaft bottom support, hydraulic setting, upper lifting pipe post deblocking.Adopting external diameter is that φ 73.03mm oil pipe is lowered to this packer in the φ 139.7mm sleeve pipe, support to the shaft bottom after, when well head applied fluid pressure from oil pipe, liquid promoted to go up fluid cylinder (12).Simultaneously, following fluid cylinder (14) is broken stop screw (16), fluid cylinder in the promotion (12).Last fluid cylinder (12) promotes the up and compression packing element (5,6) of jump ring tank liquor cylinder (8).Simultaneously, strut cartridge leather cup (4,7), realize packer packing oil removal, sleeve pipe annular space.At this moment, jump ring (11) and jump ring tank liquor cylinder (8) engagement, retaining mechanism enters locking state, prevents that packing element and packing element leather cup from setting the back and becoming flexible.During the packer deblocking, only need the upper lifting pipe post, break the deblocking blind rivet (9) that connects packer lower center tube (10) and jump ring (11), retaining mechanism lost efficacy, under the effect of packing element elastic restoring force, jump ring tank liquor cylinder (8) is descending with respect to packer lower center tube (10) with jump ring (11), the packer deblocking.
Claims (2)
1, a kind of water proof production packer, be applied to the water proof producing well of upper strata sleeve pipe damage or upper strata water outlet, mainly by top connection (1), box cupling (2), upper center tube (3), go up to carry on packing element (5), lower rubber cylinder (6) and the hydraulic setting and separate sealing mechanism and form, it is characterized in that: top connection (1) is threaded with box cupling (2), box cupling (2) bottom connects upper center tube (3), be with two packing elements on upper center tube (3) outer wall, promptly go up packing element (5) and lower rubber cylinder (6), upper center tube (3) lower end connects to carry on the hydraulic setting separates sealing mechanism; Putting forward the structure of separating sealing mechanism on the hydraulic setting is: lower center tube (10) is threaded in upper center tube (3) lower end, lower center tube (10) lower end is connected with fluid cylinder (12), upper piston (13) is arranged in the last fluid cylinder (12), the outer jump ring tank liquor cylinder (8) that is with of lower center tube (10), there is the jump ring groove jump ring tank liquor cylinder (8) inside, jump ring (11) is between lower center tube (10) and jump ring tank liquor cylinder (8), bottom at upper piston (13) connects lower piston (15), there is following fluid cylinder (14) lower piston (15) outside, following fluid cylinder (14) is identical with upper piston (13) with last fluid cylinder (12) with lower piston (15) structure, deblocking blind rivet (9) is in the upper end of lower center tube (10), deblocking blind rivet (9) links together jump ring (11) and lower center tube (10), stop screw (16) is fixed together hold-doun nut (17) and following fluid cylinder (14), and hold-doun nut (17) and lower piston (15) are by screwed connection together.
2, water proof production packer as claimed in claim 1, it is characterized in that: be with a cartridge leather cup (4,7) respectively on last packing element (5) top and lower rubber cylinder (6) bottom, promptly go up the upper and lower cartridge leather cup of cartridge leather cup (4) (7) and be combined into the compound seal mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520141928 CN2837504Y (en) | 2005-11-29 | 2005-11-29 | Water-proof oil production packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520141928 CN2837504Y (en) | 2005-11-29 | 2005-11-29 | Water-proof oil production packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2837504Y true CN2837504Y (en) | 2006-11-15 |
Family
ID=37391987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520141928 Expired - Lifetime CN2837504Y (en) | 2005-11-29 | 2005-11-29 | Water-proof oil production packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2837504Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699023B (en) * | 2009-09-29 | 2012-06-27 | 安东石油技术（集团）有限公司 | High-temperature-resistant sleeve external packer |
| CN104389548A (en) * | 2014-11-19 | 2015-03-04 | 江苏省金峰石油机械制造有限公司 | High temperature and high pressure resistance tubing packer |
| CN105507845A (en) * | 2015-12-31 | 2016-04-20 | 中国石油天然气股份有限公司 | Long-acting oil-separating packer for oil field |
| CN105545255A (en) * | 2015-12-31 | 2016-05-04 | 中国石油天然气股份有限公司 | Novel long-acting oil-separating production pipe column for oil field |
| CN109538155A (en) * | 2018-12-11 | 2019-03-29 | 中国石油天然气股份有限公司 | Insertion pipe type water-proof oil extraction packer and working method thereof |
| CN109826587A (en) * | 2019-02-11 | 2019-05-31 | 中国石油天然气股份有限公司 | Large-drift-diameter water-proof oil extraction packer and operation method thereof |
| CN114809976A (en) * | 2021-01-21 | 2022-07-29 | 中国石油天然气股份有限公司 | Soluble packer and multistage sliding sleeve fracturing string |
| CN115030683A (en) * | 2022-07-29 | 2022-09-09 | 武昌理工学院 | Novel two-stage wedging type long rubber sleeve packer |
-
2005
- 2005-11-29 CN CN 200520141928 patent/CN2837504Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699023B (en) * | 2009-09-29 | 2012-06-27 | 安东石油技术（集团）有限公司 | High-temperature-resistant sleeve external packer |
| CN104389548A (en) * | 2014-11-19 | 2015-03-04 | 江苏省金峰石油机械制造有限公司 | High temperature and high pressure resistance tubing packer |
| CN105507845A (en) * | 2015-12-31 | 2016-04-20 | 中国石油天然气股份有限公司 | Long-acting oil-separating packer for oil field |
| CN105545255A (en) * | 2015-12-31 | 2016-05-04 | 中国石油天然气股份有限公司 | Novel long-acting oil-separating production pipe column for oil field |
| CN105545255B (en) * | 2015-12-31 | 2018-05-04 | 中国石油天然气股份有限公司 | Novel long-acting oil-separating production pipe column for oil field |
| CN109538155A (en) * | 2018-12-11 | 2019-03-29 | 中国石油天然气股份有限公司 | Insertion pipe type water-proof oil extraction packer and working method thereof |
| CN109538155B (en) * | 2018-12-11 | 2023-08-22 | 中国石油天然气股份有限公司 | Cannula type water-proof oil extraction packer and working method thereof |
| CN109826587A (en) * | 2019-02-11 | 2019-05-31 | 中国石油天然气股份有限公司 | Large-drift-diameter water-proof oil extraction packer and operation method thereof |
| CN109826587B (en) * | 2019-02-11 | 2024-03-26 | 中国石油天然气股份有限公司 | Large-drift-diameter water-proof oil extraction packer and operation method thereof |
| CN114809976A (en) * | 2021-01-21 | 2022-07-29 | 中国石油天然气股份有限公司 | Soluble packer and multistage sliding sleeve fracturing string |
| CN114809976B (en) * | 2021-01-21 | 2023-12-22 | 中国石油天然气股份有限公司 | Soluble packer and multistage sliding sleeve fracturing string |
| CN115030683A (en) * | 2022-07-29 | 2022-09-09 | 武昌理工学院 | Novel two-stage wedging type long rubber sleeve packer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20061115 |
|
| EXPY | Termination of patent right or utility model |