CN102094592A - Open hole well packer - Google Patents
Open hole well packer Download PDFInfo
- Publication number
- CN102094592A CN102094592A CN2011100722269A CN201110072226A CN102094592A CN 102094592 A CN102094592 A CN 102094592A CN 2011100722269 A CN2011100722269 A CN 2011100722269A CN 201110072226 A CN201110072226 A CN 201110072226A CN 102094592 A CN102094592 A CN 102094592A
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- China
- Prior art keywords
- piston
- rubber tube
- packing element
- sheath
- valve body
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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.)
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Abstract
The invention relates to an open hole well packer, a rubber tube is sheathed outside an upper inner tube, an upper joint, the upper inner tube, a combined valve body, a lower inner tube and a lower joint are sequentially connected, the lower part of an upper rubber tube sheath covers the upper part of the rubber tube, the upper part of the upper rubber tube sheath is sheathed outside the upper joint, the upper part of a lower rubber tube sheath covers the lower part of the rubber tube, the upper part of a sealing sleeve is connected with the lower part of the lower rubber tube sheath, the lower part of the sealing sleeve is sheathed outside the combined valve body, an upper piston and a lower piston are mounted between the sealing sleeve and the lower inner tube, preset solution is perfused above the upper piston, the lower piston is arranged below the upper piston, a communicating hole is arranged on the upper piston, the communicating hole is positioned between the upper piston and the lower piston, a vertical pore canal is arranged on the combined valve body, a one-way valve is mounted at the upper part of the vertical pore canal, the one-way valve is designed for enabling the rubber tube to be in expansion state permanently, the rubber tube is expanded by the preset solution, and the one-way valve can not be corroded and damaged, so that the rubber tube can work effectively for a long time and meet the requirement on permanent blocking of the well bottom of an open hole well in an oilfield.
Description
Technical field
The present invention is the equipment of using at the bottom of the permanent plugged well in oil field, is a kind of open hole well packer.
Background technology
The inflatable packer that oil-field flooding is used is that packing element expands outwardly when the packing element internal pressure is higher than the packing element external pressure, realization sealing oil casing annular space.Will deblocking when present inflatable packer does not have pressure in inside, be not suitable for the requirement at the bottom of the permanent plugged well in oil field, the inflatable packer that has is provided with unidirectional mechanism in inside, deblocking not in the time of can guaranteeing not have pressure reduction within a certain period of time, but keep the not limited time of deblocking, also be not suitable for the requirement at the bottom of the permanent plugged well in oil field.
Summary of the invention
The purpose of this invention is to provide a kind of open hole well packer, be applicable to the requirement at the bottom of the permanent plugged well in oil field.
The object of the present invention is achieved like this: comprise top connection, last packing element sheath, packing element, pipe in going up, the lower rubber cylinder sheath, sealing shroud, one way valve, combinaing valve body, preset liquid, upper piston, pipe down, lower piston, lower contact, packing element is sleeved on outside the interior pipe, top connection, pipe in going up, combinaing valve body, pipe down, lower contact connects successively, last packing element sheath bottom covers packing element top, last packing element sheath top is sleeved on outside the top connection, lower rubber cylinder sheath top covers the packing element bottom, sealing shroud top is connected with lower rubber cylinder sheath bottom, the sealing shroud bottom is sleeved on outside the combinaing valve body, install piston between sealing shroud and the down interior pipe, lower piston, liquid is preset in perfusion on the upper piston, it under the upper piston lower piston, linked hole is arranged on the upper piston, linked hole is between upper piston and the lower piston, vertical duct is arranged on the combinaing valve body, and one way valve is installed on the top in vertical duct.
The invention has the beneficial effects as follows: designed one way valve, made packing element forever be in expansion state, packing element is by presetting liquid expansion, and one way valve can corrosion and damage, and therefore, packing element can permanently effective work, can satisfy the requirement at the bottom of the permanent plugged well of oil field open hole well.
Description of drawings
Fig. 1 is a structure assembling drawing of the present invention.
The specific embodiment
Below in conjunction with Fig. 1 embodiments of the invention are described.
As shown in the figure, embodiments of the invention comprise top connection 1, last packing element sheath 2, packing element 3, pipe 4 in going up, lower rubber cylinder sheath 5, sealing shroud 6, one way valve 7, combinaing valve body 8, preset liquid 9, upper piston 10, pipe 11 down, lower piston 12, lower contact 13, manage outside 4 in packing element 3 is sleeved on, top connection 1, pipe 4 in going up, combinaing valve body 8, pipe 11 down, lower contact 13 connects successively, last packing element sheath 2 bottoms cover packing element 3 tops, last packing element sheath 3 tops are sleeved on outside the top connection 1, lower rubber cylinder sheath 5 tops cover packing element 3 bottoms, sealing shroud 6 tops are connected with lower rubber cylinder sheath 5 bottoms, sealing shroud 6 bottoms are sleeved on outside the combinaing valve body 8, install piston 10 between sealing shroud 6 and the interior down pipe 11, lower piston 12, liquid 9 is preset in perfusion on the upper piston 10, it under the upper piston 10 lower piston 12, linked hole 14 is arranged on the upper piston 10, linked hole 14 is between upper piston 10 and the lower piston 12, vertical duct 9 is arranged on the combinaing valve body 8, one way valve 7 is installed on the top in vertical duct 9, liquid can only flow in the packing element 3 from vertical duct 9, can not flow out in packing element 3.
The present invention is down behind open hole well packing position, inside pressure water injection, injecting water flow between upper piston 10 and the lower piston 12 from linked hole 14, it is up to promote upper piston 10, and liquid 9 pressurizations of presetting on the upper piston 10 are pushed into the inner chamber of packing element 3 through one way valve 7, makes the packing element 3 expansion packing boreholes wall, after stopping pressurization, one way valve 7 is closed, and packing element 3 forever is in expansion state, thereby all the time at the bottom of the sealed well.
Claims (1)
1. open hole well packer, comprise top connection (1), last packing element sheath (2), packing element (3), pipe (4) in going up, lower rubber cylinder sheath (5), sealing shroud (6), one way valve (7), combinaing valve body (8), preset liquid (9), upper piston (10), pipe (11) down, lower piston (12), lower contact (13), it is characterized in that: manage in packing element (3) is sleeved on outside (4), top connection (1), pipe (4) in going up, combinaing valve body (8), pipe (11) down, lower contact (13) connects successively, last packing element sheath (2) bottom covers packing element (3) top, last packing element sheath (3) top is sleeved on outside the top connection (1), lower rubber cylinder sheath (5) top covers packing element (3) bottom, sealing shroud (6) top is connected with lower rubber cylinder sheath (5) bottom, sealing shroud (6) bottom is sleeved on outside the combinaing valve body (8), sealing shroud (6) and interior down the pipe between (11) are installed piston (10), lower piston (12), liquid (9) is preset in perfusion on the upper piston (10), under the upper piston (10) lower piston (12), linked hole (14) is arranged on the upper piston (10), linked hole (14) is between upper piston (10) and the lower piston (12), vertical duct (9) is arranged on the combinaing valve body (8), and one way valve (7) is installed on the top in vertical duct (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100722269A CN102094592A (en) | 2011-03-15 | 2011-03-15 | Open hole well packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100722269A CN102094592A (en) | 2011-03-15 | 2011-03-15 | Open hole well packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102094592A true CN102094592A (en) | 2011-06-15 |
Family
ID=44127840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100722269A Pending CN102094592A (en) | 2011-03-15 | 2011-03-15 | Open hole well packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102094592A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590780A (en) * | 2013-11-27 | 2014-02-19 | 中国石油化工股份有限公司 | High-temperature high-pressure large-drift-diameter hydraulic sleeve packer |
| CN110469290A (en) * | 2018-05-10 | 2019-11-19 | 中国石油化工股份有限公司 | Leakproof two-stage water injection packer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1226518A (en) * | 1984-04-16 | 1987-09-08 | Robert E. Snyder | Inflatable packer |
| CN2511787Y (en) * | 2001-10-15 | 2002-09-18 | 马忠源 | Packer |
| CN1896454A (en) * | 2006-05-25 | 2007-01-17 | 东营市祥生工贸有限责任公司 | Packer |
| RU2347062C1 (en) * | 2007-10-16 | 2009-02-20 | Общество с ограниченной ответственностью "Лифт Ойл" | Packer |
| CN101906949A (en) * | 2010-08-23 | 2010-12-08 | 中国石油集团西部钻探工程有限公司 | Underbalanced well completion tool |
| CN101915070A (en) * | 2010-08-23 | 2010-12-15 | 东营市兆鑫工贸有限责任公司 | Expanding open hole packer |
| CN202030526U (en) * | 2011-04-14 | 2011-11-09 | 上海宝钢化工有限公司 | Adjustable phosphate liquid tar removing device |
-
2011
- 2011-03-15 CN CN2011100722269A patent/CN102094592A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1226518A (en) * | 1984-04-16 | 1987-09-08 | Robert E. Snyder | Inflatable packer |
| CN2511787Y (en) * | 2001-10-15 | 2002-09-18 | 马忠源 | Packer |
| CN1896454A (en) * | 2006-05-25 | 2007-01-17 | 东营市祥生工贸有限责任公司 | Packer |
| RU2347062C1 (en) * | 2007-10-16 | 2009-02-20 | Общество с ограниченной ответственностью "Лифт Ойл" | Packer |
| CN101906949A (en) * | 2010-08-23 | 2010-12-08 | 中国石油集团西部钻探工程有限公司 | Underbalanced well completion tool |
| CN101915070A (en) * | 2010-08-23 | 2010-12-15 | 东营市兆鑫工贸有限责任公司 | Expanding open hole packer |
| CN202030526U (en) * | 2011-04-14 | 2011-11-09 | 上海宝钢化工有限公司 | Adjustable phosphate liquid tar removing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590780A (en) * | 2013-11-27 | 2014-02-19 | 中国石油化工股份有限公司 | High-temperature high-pressure large-drift-diameter hydraulic sleeve packer |
| CN110469290A (en) * | 2018-05-10 | 2019-11-19 | 中国石油化工股份有限公司 | Leakproof two-stage water injection packer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110615 |