CN101358513A - Water injection packer - Google Patents
Water injection packer Download PDFInfo
- Publication number
- CN101358513A CN101358513A CNA2008101382671A CN200810138267A CN101358513A CN 101358513 A CN101358513 A CN 101358513A CN A2008101382671 A CNA2008101382671 A CN A2008101382671A CN 200810138267 A CN200810138267 A CN 200810138267A CN 101358513 A CN101358513 A CN 101358513A
- Authority
- CN
- China
- Prior art keywords
- well
- packing element
- joint
- interior pipe
- water injection
- 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.)
- Pending
Links
Abstract
The invention relates to a water injection packer. An upper joint, an inner tube and a lower joint are connected in turn. A jacket is sheathed outside the upper joint; a well-washing piston is arranged between the jacket and the inner tube the upper joint of a gel cylinder is connected below the jacket; the gel cylinder is arranged in the upper joint and the lower joint of the gel cylinder; the lower part of the well washing joint is connected with the upper part of a check valve; the lower part of the check valve is arranged beside the lower joint; the upper part of the inner tube is provided with a pressure transmission hole; a well-washing channel is arranged between the inner tube and the liner tube; a seal communicating hole and a well-washing communicating hole are arranged on the well-washing joint; the lower part of the inner tube is provided with a liquid inlet communicating hole. The lower part of the check valve is fixed on the lower joint by a unseal pin. The lower part of the inner tube is provided with an undergauged interval. When the injection to the well is stopped, the well is not sealed; the gel cylinder can not shrink and expand repeatedly. Under the situation of meeting the demand of not sealing when the injection to the well is stopped, thus being capable of realizing to repeatedly wash the well, being capable of prolonging the injection period of the water injection well and reducing the times for repairing the well as well as improving the economic benefit.
Description
One, technical field
The present invention is the laminated distributor under well water filling instrument that oil-field flooding is used, and is a kind of water injection packer.
Two, background technology
The expanding water injection 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, realizes the purpose of sealing oil casing annular space.In the time will in well, tripping out the expanding water injection packer, need the packing element internal pressure to be equal to or less than the packing element external pressure, packing element is shunk.For the packing element external and internal pressure is changed, the expanding water injection packer is provided with the injection channel.But the injection channel of present expanding water injection packer is two-way, and after well stopped to annotate for some reason, the packing element internal pressure descended, and packing element shrinks.When recovering water filling, the packing element internal pressure rises, the packing element expansion.If when stopping for some reason to annotate often, packing element shrinks repeatedly, just expands and damage easily, cause the separated-zone water infection oil field well can not quantitative injection, make its layer water injection rate that has exceed the injection allocation amount, the layer water injection rate that has is not enough, becomes and shorts layer, does not reach the reasonable benefit of water flooding.Chinese patent application 00202259.1 (pressure reduction expand envelope backwash desealed water injection packer), the injection channel is unidirectional when not having anti-flushing well, and after can avoiding stopping for some reason annotating, packing element shrinks, and the problem of expanding again during water filling can avoid packing element to damage again.But it seals up the sleeve pipe annular space all the time, does not have the well-flushing passage, can not carry out anti-flushing well, causes the water injection well working time short, influences field produces.
Three, summary of the invention
The water injection packer that the purpose of this invention is to provide a kind of back-washable well.
The object of the present invention is achieved like this: by top connection, sheath, the well-flushing piston, gluing socket joint head, interior pipe, packing element, the packing element bushing pipe, Flush coupling, the lower rubber cylinder joint, ball-and-seat, lower contact is formed, thread connection on screw thread and the interior pipe under the top connection, thread connection in screw thread and the lower contact under the interior pipe, the outer suit sheath of top connection, the well-flushing piston is installed between sheath and the interior pipe under the top connection, connect gluing socket joint head under the sheath, packing element top is installed in the gluing socket joint head, the packing element bottom is installed in the lower rubber cylinder joint, the packing element bushing pipe is arranged in the packing element, packing element bushing pipe top connects with gluing socket joint head, packing element bushing pipe bottom connects with Flush coupling top, the Flush coupling bottom connects with ball-and-seat top, the ball-and-seat bottom is in outside the lower contact, and pressure transmission hole is arranged at interior pipe top, between interior pipe and the packing element bushing pipe well-flushing passage is arranged, seat envelope linked hole and well-flushing linked hole are arranged on the Flush coupling, and the feed liquor linked hole is arranged at interior pipe bottom.
The ball-and-seat bottom by the deblocking dowel fixes in lower contact.
The undergauge section is arranged at interior pipe bottom.
The invention has the beneficial effects as follows: deblocking not when well stops annotating, packing element can not shrink repeatedly, expand, so packing element can not damage, and the packer life-span is long.The present invention is provided with the well-flushing passage, not under the requirement of deblocking, can realize anti-flushing well when satisfying well and stop annotating, and can prolong the water injection cycle of water injection well, reduces the well workover number of times, increases economic efficiency.
Four, description of drawings
Accompanying drawing is a structure assembling drawing of the present invention.
Five, the specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated.
Embodiments of the invention are by top connection 1, sheath 2, well-flushing piston 3, gluing socket joint head 4, interior pipe 5, packing element 6, packing element bushing pipe 7, Flush coupling 8, lower rubber cylinder joint 9, ball-and-seat 10, lower contact 12 is formed, thread connection on 1 time screw thread of top connection and the interior pipe 5, thread connection in 5 times screw threads of interior pipe and the lower contact 12, top connection 1 outer suit sheath 2, well-flushing piston 3 is installed between sheath 2 and the interior pipe 5 under the top connection 1, connect gluing socket joint head 4 under the sheath 2, packing element 6 tops are installed in the gluing socket joint head 4, packing element 6 bottoms are installed in the lower rubber cylinder joint 9, packing element bushing pipe 7 is arranged in the packing element 6, packing element bushing pipe 7 tops connect with gluing socket joint head 4, packing element bushing pipe 7 bottoms connect with Flush coupling 8 tops, Flush coupling 8 bottoms connect with ball-and-seat 10 tops, ball-and-seat 10 bottoms are in outside the lower contact 12, and pressure transmission hole 13 is arranged at interior pipe 5 tops, between interior pipe 5 and the packing element bushing pipe 7 well-flushing passage 14 is arranged, seat envelope linked hole 15 and well-flushing linked hole 17 are arranged on the Flush coupling 8, and feed liquor linked hole 16 is arranged at interior pipe 5 bottoms.Ball-and-seat 10 bottoms are fixed in the lower contact 12 by deblocking pin 11.Undergauge section 18 is arranged at interior pipe 5 bottoms.
During water filling, under the effect of pressure transmission hole 13, well-flushing piston 3 is in closed condition, and well-flushing passage 14 is closed, and injects water and enters between packing element 6, the packing element bushing pipe 7 through feed liquor linked hole 16, ball-and-seat 10, seat envelope linked hole 15, makes packing element 6 expansion back Seal Oil sleeve pipes.When stopping annotating, the valve ball on the ball-and-seat 10 resets under spring action, and the water in the packing element 6 can not flow out, and therefore, packing element 6 can not shrink yet after water injection well stops to annotate for some reason, and packing element 8 can not shrink repeatedly, expand and damage.
During anti-flushing well, well-flushing water is squeezed into from sleeve pipe, on the sheath 2 sieve aperture is arranged, and well-flushing piston 3 is up, and well-flushing passage 14 is opened, and well-flushing water flows to the packer bottom through well-flushing passage 14, well-flushing linked hole 17, upwards flows out through interior pipe, thereby realizes circulation well cleanup.
During deblocking, on carry water injection string, packing element 6 expansion is producing frictional force between back and the sleeve pipe on the sleeve pipe, deblocking pin 11 is cut off, in pipe 5 up, interior pipe 5 bottom undergauge sections 18 are sealed linked hole 15 and feed liquor linked hole 16 UNICOMs with seat, pressure releases realize deblockings in the packing element 6.
Claims (3)
1, a kind of water injection packer, it is characterized in that: by top connection (1), sheath (2), well-flushing piston (3), gluing socket joint head (4), interior pipe (5), packing element (6), packing element bushing pipe (7), Flush coupling (8), lower rubber cylinder joint (9), ball-and-seat (10), lower contact (12) is formed, screw thread and interior pipe (5) are gone up thread connection under the top connection (1), thread connection is gone up in screw thread and lower contact (12) under the interior pipe (5), the outer suit sheath of top connection (1) (2), well-flushing piston (3) is installed between sheath (2) and the interior pipe (5) under the top connection (1), connect gluing socket joint head (4) under the sheath (2), packing element (6) top is installed in the gluing socket joint head (4), packing element (6) bottom is installed in the lower rubber cylinder joint (9), packing element bushing pipe (7) is arranged in the packing element (6), packing element bushing pipe (7) top connects with gluing socket joint head (4), packing element bushing pipe (7) bottom connects with Flush coupling (8) top, Flush coupling (8) bottom connects with ball-and-seat (10) top, ball-and-seat (10) bottom is in outside the lower contact (12), pressure transmission hole (13) is arranged at interior pipe (5) top, between interior pipe (5) and the packing element bushing pipe (7) well-flushing passage (14) is arranged, seat envelope linked hole (15) and well-flushing linked hole (17) are arranged on the Flush coupling (8), and feed liquor linked hole (16) is arranged at interior pipe (5) bottom.
2, water injection packer according to claim 1 is characterized in that: ball-and-seat (10) bottom is fixed in the lower contact (12) by deblocking pin (11).
3, water injection packer according to claim 1 is characterized in that: undergauge section (18) is arranged at interior pipe (5) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101382671A CN101358513A (en) | 2008-07-08 | 2008-07-08 | Water injection packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101382671A CN101358513A (en) | 2008-07-08 | 2008-07-08 | Water injection packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101358513A true CN101358513A (en) | 2009-02-04 |
Family
ID=40331093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101382671A Pending CN101358513A (en) | 2008-07-08 | 2008-07-08 | Water injection packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101358513A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536156A (en) * | 2012-02-15 | 2012-07-04 | 甘肃铁道综合工程勘察院有限公司 | High-voltage packer for measuring ground stress of deep hole and method for manufacturing rubber sleeve of packer |
| CN101586455B (en) * | 2009-06-15 | 2012-10-10 | 东营市兆鑫工贸有限责任公司 | Anchoring expansion type packer |
| CN103899270A (en) * | 2014-03-13 | 2014-07-02 | 平顶山市铁福来机电设备有限公司 | Three-wall water injection hole packer for coal mines |
| CN107762443A (en) * | 2016-08-18 | 2018-03-06 | 中国石油化工股份有限公司 | Well repairing device and method for well fixing |
| CN114737913A (en) * | 2022-04-18 | 2022-07-12 | 中煤科工集团西安研究院有限公司 | Underground coal mine long drill hole internal local grouting reinforcement system and grouting method |
-
2008
- 2008-07-08 CN CNA2008101382671A patent/CN101358513A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101586455B (en) * | 2009-06-15 | 2012-10-10 | 东营市兆鑫工贸有限责任公司 | Anchoring expansion type packer |
| CN102536156A (en) * | 2012-02-15 | 2012-07-04 | 甘肃铁道综合工程勘察院有限公司 | High-voltage packer for measuring ground stress of deep hole and method for manufacturing rubber sleeve of packer |
| CN102536156B (en) * | 2012-02-15 | 2014-06-11 | 甘肃铁道综合工程勘察院有限公司 | High-voltage packer for measuring ground stress of deep hole and method for manufacturing rubber sleeve of packer |
| CN103899270A (en) * | 2014-03-13 | 2014-07-02 | 平顶山市铁福来机电设备有限公司 | Three-wall water injection hole packer for coal mines |
| CN103899270B (en) * | 2014-03-13 | 2016-05-25 | 河南铁福来装备制造股份有限公司 | A kind of three wall water injection hole packers for colliery |
| CN107762443A (en) * | 2016-08-18 | 2018-03-06 | 中国石油化工股份有限公司 | Well repairing device and method for well fixing |
| CN107762443B (en) * | 2016-08-18 | 2019-12-24 | 中国石油化工股份有限公司 | Well workover device and well workover method |
| CN114737913A (en) * | 2022-04-18 | 2022-07-12 | 中煤科工集团西安研究院有限公司 | Underground coal mine long drill hole internal local grouting reinforcement system and grouting method |
| CN114737913B (en) * | 2022-04-18 | 2023-10-27 | 中煤科工集团西安研究院有限公司 | Local grouting reinforcement system and grouting method in long drilling hole of underground coal mine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101358513A (en) | Water injection packer | |
| CN201221335Y (en) | Water injection packer | |
| CN201661268U (en) | Compensation type pilot-operated water injection packer | |
| CN203383783U (en) | Closed-type bottom reversing switch | |
| CN201068781Y (en) | Down-hole fixed pressure opening valve for injection, extraction and washing | |
| CN202047784U (en) | Packer | |
| CN201068789Y (en) | Fracturing sand-proof filling tool | |
| CN201924873U (en) | Long-term expanding packer | |
| CN206668216U (en) | A kind of compact inverse well-flushing valve | |
| CN201377312Y (en) | Layered water injection tool | |
| CN102650199A (en) | Bidirectional pressure control circulating valve | |
| CN109113638A (en) | A kind of back-washable inflatable packer | |
| CN101586455B (en) | Anchoring expansion type packer | |
| CN201412128Y (en) | Multifunctional oil drain | |
| CN208441803U (en) | Low power unseals long packing element type well packer capable of flushing well | |
| CN201443352U (en) | Anchoring expansion packer | |
| CN202417410U (en) | Well washing packer | |
| CN206592097U (en) | A kind of double hose packer | |
| CN2823539Y (en) | Expansion type water injector packer | |
| CN2739352Y (en) | Expanding water injection well packer | |
| CN201671590U (en) | Compressed water injection well flushing packer | |
| CN110905428A (en) | Composite super-expansion cementing liner hanger | |
| CN206874249U (en) | Fluid power expansion type well packer capable of flushing well | |
| CN2839554Y (en) | Anti-creeping expanding water injection plugging device | |
| CN205063868U (en) | Oil jacket divides annotates well washing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090204 |