CN2559780Y - Isolation type unpacking valve control packer - Google Patents
Isolation type unpacking valve control packer Download PDFInfo
- Publication number
- CN2559780Y CN2559780Y CN 02274159 CN02274159U CN2559780Y CN 2559780 Y CN2559780 Y CN 2559780Y CN 02274159 CN02274159 CN 02274159 CN 02274159 U CN02274159 U CN 02274159U CN 2559780 Y CN2559780 Y CN 2559780Y
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- valve
- deblocking
- valve pocket
- hole
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- Expired - Lifetime
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Abstract
The utility model relates to an isolation type unpacking valve control packer, particularly a closed type water injection packer used on an oil field injection distribution pipe column. The utility model belongs to a mechanical oil extraction water injection underground tool. Because the pressure in the inner cavity of the rubber tube of the packer acts on the inner end surface of an unpacking pole, the existing underground differential pressure sealing type washable well packer has too high unpacking pressure and sometimes the wells can be obstructed in the process of washing the wells. The isolation type unpacking valve control packer comprises a valve main body (1) of which the side wall is provided with two eccentric holes. A seat sealing valve (2) is placed in one eccentric hole, and an isolation type unpacking valve (3) is placed in the other eccentric hole. The utility model can be used to replace the existing packer, so that the backwashing well unpacking is more reliable.
Description
Technical field: the utility model relates to the closed water injection packer of using on a kind of oil field injection allocation tubing string, belongs to a kind of of mechanical oil recovery water filling downhole tool.
Background technology: pressure reduction closed washing well packer under the existing well, owing to still can keep good sealing behind its good seal performance, the well-flushing, use comparatively extensive, but since packer to separate seal pressure relevant with the water injection pressure of water injection well, promptly relevant with the packing element cavity pressure, that is to say that the packing element chamber pressure acts on the inner face of deblocking bar, so that packer deblocking hypertonia, wash obstructed during well-flushing sometimes.
Summary of the invention: the purpose of this utility model provides a kind of more maneuverable isolated deblocking valve control packer at above-mentioned the deficiencies in the prior art exactly.Its objective is such realization: isolated deblocking valve control packer, its composition comprises valve body 1, on the sidewall of valve body 1, have two inclined to one side holes, place in the inclined to one side hole and set valve 2, place isolated deblocking valve 3 in another inclined to one side hole, the described valve 2 that sets comprises valve pocket 5 and taper valve core 4 and spring 6, taper valve core 4 is arranged on the inside of valve pocket 5, spring 6 is enclosed within on the taper valve core 4 and is the strong point with the interior base of valve pocket 5, have pressure transmission hole 7 on the sidewall of valve pocket 5, pressure transmission hole 7 is through the sidewall of packer central tube 20, described pressure transmission hole 7 is arranged on the top of taper valve core 4, also be provided with the hole 9 that communicates with packing element inner chamber 8 in the bottom of valve pocket 5, described isolated deblocking valve 3 comprises deblocking valve pocket 10, deblocking valve stem piston 11, spring 12 and sealing ring 15, deblocking valve pocket 10 comprises deblocking valve pocket 10-1 and following deblocking valve pocket 10-2, be tightly connected between last deblocking valve pocket 104 and the following deblocking valve pocket 10-2, described deblocking valve stem piston 11 is arranged in the deblocking valve pocket 10, and by sealing ring 15 and following deblocking valve pocket 10-2 sealing, spring 12 is arranged on the deblocking valve stem piston 11, and following deblocking valve pocket 10-2 is the strong point, on the sidewall of last deblocking valve pocket 10-1, have pressure transmission hole 13, the position of described pressure transmission hole 13 is higher than the top of deblocking valve stem piston 11, on the opposite side sidewall of last deblocking valve pocket 10-1, also have radial hole 14, the position of radial hole 14 is lower than the top of deblocking valve stem piston 11, on the sidewall of following deblocking valve pocket 10-2, have radial hole 16, at the axial hole 19 that has on the sidewall of following deblocking valve pocket 10-2 opposite side between the cavity 18 that is communicated with lower valve sleeve dead space 17 and last deblocking valve pocket 10-1.Advantage of the present utility model is: the seal pressure chamber is understood in realization and the packing element cavity pressure is isolated fully, make this valve in different setting under the pressure (water injection pressure), separating seal pressure is certain value, and it is irrelevant to realize separating seal pressure and water injection pressure really, and control within the limits prescribed.It is big to have solved big or initial stage of water injection pressure seal pressure that expands, and it is just big that seal pressure is separated in backwash, and deblocking pressure transient and uncontrollable problem make the anti-flushing well deblocking more reliable.
Description of drawings: Fig. 1 is a structural representation of the present utility model, and Fig. 2 is the enlarged drawing that sets valve 2, and Fig. 3 is the enlarged drawing of isolated deblocking valve 3.
The specific embodiment: isolated deblocking valve control packer, its composition comprises valve body 1, on the sidewall of valve body 1, have two inclined to one side holes, place in the inclined to one side hole and set valve 2, place isolated deblocking valve 3 in another inclined to one side hole, the described valve 2 that sets comprises valve pocket 5 and taper valve core 4 and spring 6, taper valve core 4 is arranged on the inside of valve pocket 5, spring 6 is enclosed within on the taper valve core 4 and is the strong point with the interior base of valve pocket 5, have pressure transmission hole 7 on the sidewall of valve pocket 5, pressure transmission hole 7 is through the sidewall of packer central tube 20, described pressure transmission hole 7 is arranged on the top of taper valve core 4, also be provided with the hole 9 that communicates with packing element inner chamber 8 in the bottom of valve pocket 5, described isolated deblocking valve 3 comprises deblocking valve pocket 10, deblocking valve stem piston 11, spring 12 and sealing ring 15, deblocking valve pocket 10 comprises deblocking valve pocket 10-1 and following deblocking valve pocket 10-2, be tightly connected between last deblocking valve pocket 10-1 and the following deblocking valve pocket 10-2, described deblocking valve stem piston 11 is arranged in the deblocking valve pocket 10, and by sealing ring 15 and following deblocking valve pocket 10-2 sealing, spring 12 is arranged on the deblocking valve stem piston 11, and following deblocking valve pocket 10-2 is the strong point, on the sidewall of last deblocking valve pocket 10-1, have pressure transmission hole 13, the position of described pressure transmission hole 13 is higher than the top of deblocking valve stem piston 11, on the opposite side sidewall of last deblocking valve pocket 10-1, also have radial hole 14, the position of radial hole 14 is lower than the top of deblocking valve stem piston 11, on the sidewall of following deblocking valve pocket 10-2, have radial hole 16, at the axial hole 19 that has on the sidewall of following deblocking valve pocket 10-2 opposite side between the cavity 18 that is communicated with lower valve sleeve dead space 17 and last deblocking valve pocket 10-1.During water filling, the pressure transmission hole 7 of water under high pressure by central tube enters and sets valve 2, act on the top of tapered spool 4, make tapered spool 4 compression springs 6 descending, set valve 2 and open, water under high pressure enters packing element inner chamber 8, packing element expands and sets, after the packing element cavity pressure acquires a certain degree, set valve 2 and close, packing element still is in the state that sets that expands; When deblocking or anti-flushing well, the oil jacket annular pressure enters isolated deblocking valve 3 through pressure transmission hole 13, on pressure compression deblocking valve stem piston 11 upper surfaces, deblocking valve stem piston 11 descending compression springs 12, when sealing ring 15 is descending cross radial hole 16 after, depressurization, the pressure of packing element inner chamber leaks in the central tube 20 by axial hole 19 and radial hole 14, and packing element is regained and deblocking.When setting with water filling, because the pressure of packing element inner chamber 8 does not directly act on the lower surface of deblocking valve stem piston 11, but separate by following deblocking valve pocket 12, and the footpath that the pressure of packing element inner chamber 8 is acted on deblocking valve stem piston 11 by radial hole 16 upwards, the descending pressure influence that is not subjected to the packing element inner chamber of valve rod when making deblocking, thereby can make the deblocking constant pressure, reach the pressure that needs.And when setting again with water filling, water injection pressure enter set valve 2 in, enter the radial hole 14 and the axial hole 19 of deblocking valve again, help spring 12 to make deblocking valve stem piston 11 returns.In addition, because the existence of axial hole 19 and radial hole 14, the last pressure balance that deblocking valve stem piston 11 is born, the work that makes packer are not subjected to the influence of strata pressure and switch well and interval commingled water injection that automatic deblocking causes occur and the problem of interlayer water filling.
Claims (3)
1, a kind of isolated deblocking valve control packer, its composition comprises valve body (1), it is characterized in that having on the sidewall of valve body (1) two inclined to one side holes, places in the inclined to one side hole and sets valve (2), places isolated deblocking valve (3) in another inclined to one side hole.
2, isolated deblocking valve control packer according to claim 1, it is characterized in that the described valve (2) that sets comprises valve pocket (5) and taper valve core (4) and spring (6), taper valve core (4) is arranged on the inside of valve pocket (5), spring (6) is enclosed within that taper valve core (4) is gone up and is the strong point with the interior base of valve pocket (5), have pressure transmission hole (7) on the sidewall of valve pocket (5), pressure transmission hole (7) is through the sidewall of packer central tube (20), described pressure transmission hole (7) is arranged on the top of taper valve core (4), also is provided with the hole (9) that communicates with packing element inner chamber (8) in the bottom of valve pocket (5).
3, isolated deblocking valve control packer according to claim 1, it is characterized in that described isolated deblocking valve (3) comprises deblocking valve pocket (10), deblocking valve stem piston (11), spring (12) and sealing ring (15), deblocking valve pocket (10) comprises deblocking valve pocket (10-1) and following deblocking valve pocket (10-2), be tightly connected between last deblocking valve pocket (10-1) and the following deblocking valve pocket (10-2), described deblocking valve stem piston (11) is arranged in the deblocking valve pocket (10), and by sealing ring (15) and following deblocking valve pocket (10-2) sealing, spring (12) is arranged on the deblocking valve stem piston (11), and following deblocking valve pocket (10-2) is the strong point, on the sidewall of last deblocking valve pocket (10-1), have pressure transmission hole (13), the position of described pressure transmission hole (13) is higher than the top of deblocking valve stem piston (11), on the opposite side sidewall of last deblocking valve pocket (10-1), also have radial hole (14), the position of radial hole (14) is lower than the top of deblocking valve stem piston (11), on the sidewall of following deblocking valve pocket (10-2), have radial hole (16), at the axial hole (19) that has on the sidewall of following deblocking valve pocket (10-2) opposite side between the cavity (18) that is communicated with lower valve sleeve dead space (17) and last deblocking valve pocket (10-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02274159 CN2559780Y (en) | 2002-07-10 | 2002-07-10 | Isolation type unpacking valve control packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02274159 CN2559780Y (en) | 2002-07-10 | 2002-07-10 | Isolation type unpacking valve control packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2559780Y true CN2559780Y (en) | 2003-07-09 |
Family
ID=33738472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02274159 Expired - Lifetime CN2559780Y (en) | 2002-07-10 | 2002-07-10 | Isolation type unpacking valve control packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2559780Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100228A (en) * | 2013-04-03 | 2014-10-15 | 中国石油天然气股份有限公司 | Synchronous separate mining reversing valve |
| CN107461174A (en) * | 2017-09-26 | 2017-12-12 | 西南石油大学 | A kind of storm valve |
| CN107780872A (en) * | 2017-11-03 | 2018-03-09 | 西南石油大学 | A kind of pneumatic inflatable packer of Oil/gas Well |
| CN107916910A (en) * | 2016-10-10 | 2018-04-17 | 中国石油化工股份有限公司 | Independent hydraulic control packer pressure valve |
| CN108412426A (en) * | 2018-02-01 | 2018-08-17 | 西南石油大学 | A kind of borehole wall eyelid retractor for oil/gas well self-advancing type water-jet |
| CN110145255A (en) * | 2019-06-18 | 2019-08-20 | 青岛鑫源晟石油科技有限公司 | One kind can bore packer and setting tool |
| CN113294119A (en) * | 2020-02-21 | 2021-08-24 | 中国石油天然气股份有限公司 | Packer and well completion structure |
-
2002
- 2002-07-10 CN CN 02274159 patent/CN2559780Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100228A (en) * | 2013-04-03 | 2014-10-15 | 中国石油天然气股份有限公司 | Synchronous separate mining reversing valve |
| CN104100228B (en) * | 2013-04-03 | 2016-10-19 | 中国石油天然气股份有限公司 | Synchronous separate mining reversing valve |
| CN107916910A (en) * | 2016-10-10 | 2018-04-17 | 中国石油化工股份有限公司 | Independent hydraulic control packer pressure valve |
| CN107461174A (en) * | 2017-09-26 | 2017-12-12 | 西南石油大学 | A kind of storm valve |
| CN107780872A (en) * | 2017-11-03 | 2018-03-09 | 西南石油大学 | A kind of pneumatic inflatable packer of Oil/gas Well |
| CN108412426A (en) * | 2018-02-01 | 2018-08-17 | 西南石油大学 | A kind of borehole wall eyelid retractor for oil/gas well self-advancing type water-jet |
| CN108412426B (en) * | 2018-02-01 | 2019-04-16 | 西南石油大学 | A kind of borehole wall eyelid retractor for oil/gas well self-advancing type water-jet |
| CN110145255A (en) * | 2019-06-18 | 2019-08-20 | 青岛鑫源晟石油科技有限公司 | One kind can bore packer and setting tool |
| CN110145255B (en) * | 2019-06-18 | 2024-04-23 | 青岛鑫源晟石油科技有限公司 | Drillable packer and setting tool |
| CN113294119A (en) * | 2020-02-21 | 2021-08-24 | 中国石油天然气股份有限公司 | Packer and well completion structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120710 Granted publication date: 20030709 |