CN2900771Y - Expansion type oil well packer - Google Patents
Expansion type oil well packer Download PDFInfo
- Publication number
- CN2900771Y CN2900771Y CNU2006200907560U CN200620090756U CN2900771Y CN 2900771 Y CN2900771 Y CN 2900771Y CN U2006200907560 U CNU2006200907560 U CN U2006200907560U CN 200620090756 U CN200620090756 U CN 200620090756U CN 2900771 Y CN2900771 Y CN 2900771Y
- Authority
- CN
- China
- Prior art keywords
- valve
- water
- lower contact
- way valve
- tube
- 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
- 239000003129 oil well Substances 0.000 title abstract description 4
- 238000012856 packing Methods 0.000 claims description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 239000007788 liquid Substances 0.000 claims description 3
- 239000000945 filler Substances 0.000 abstract 3
- 210000000988 bone and bone Anatomy 0.000 abstract 2
- 238000007789 sealing Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/06—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for setting packers
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Safety Valves (AREA)
Abstract
The utility model relates to an expanding oil well packer, which comprises a top joint and a bottom joint. A center pipe and a rubber filler is arranged on the joint between the top joint and the bottom joint, and inner and outer radial holes are arranged on the top joint. 2-6 inner radial holes are even arranged on the bottom joint. 2-6 spring-return one-way valves are arranged along the circle in the bottom joint, and a valve inlet is connected with the inner radial holes. An outlet is connected with a circle bone between the filler and the center pipe. The spring-return one-way valve, which is connected with a hydraulic pressure opening device, is connected with the top joint. The one-way valve outlet is connected with the circle bone between the filler and the center pipe. The inlet is connected with inner radial holes of the top joint, and a spring-return piston rod of the hydraulic pressure opening device is connected with the one-way valve rod. The inlet and outlet of the cylinder body are connected with the outer radial holes of the top joint. Sealing speed of 2-6 filling forcing valves is fast, and a detaching valve is connected with the hydraulic pressure opening device. The releasing and watering speed is increased during de-archiving.
Description
Technical field
The utility model relates to a kind of expanding Wel packing that oil field downhole packing casing and flow string are used, particularly a kind of control device of expanding Wel packing.
Background technology
The oil well in oil field has casing, is lowered to flow string during oil recovery in casing.When recovering the oil, want oil production by layer sometimes or, need use casing and flow string the Wel packing packing to live during in oil production by layer or to underground seperated layer water injection to operations such as underground seperated layer water injections.The Wel packing of using in the oil field is the expanding Wel packing mostly at present.The expanding Wel packing has the upper and lower joint that can link to each other with screw thread with flow string, be connected with central tube and rubber packing tube between the upper and lower joint, the axis of upper and lower joint and central tube, rubber packing tube is on same straight line, rubber packing tube is in the outside of central tube, between rubber packing tube and the central tube annular chamber is arranged, inside and outside radially water hole is arranged on the joint, the control device that sets deblocking is arranged on the joint.In the prior art, the oil field is upper and lower two spring reset one way valves of contacting mutually with the control device that sets deblocking of expanding Wel packing, in upper and lower two spring reset one way valves, one is water-filling pressurizing valve when being used to set, and one is relief valve when being used for deblocking.Use the annular chamber between rubber packing tube and central tube to be full of water and pressurization when setting, rubber packing tube is expanded, being adjacent to casing lives the oil well packing, as long as the water pressure in the annular chamber between rubber packing tube and the central tube is released, the rubber packing tube of expansion can restore deblocking during deblocking.On the control device that sets deblocking of this expanding Wel packing is contacted mutually, following two spring reset one way valves, because water is incompressible material, the process that annular chamber when pressurization of water between rubber packing tube and central tube will pressurize by first water-filling again, so it is more to set the water that water-filling need charge into, as long as and deblocking is let out the water that removes seldom, pressure moment can remove, on paired, following two spring reset one way valves are during as control device, more because of setting the water that water-filling need charge into, on, following two spring reset one way valves can only act as the usefulness of water-filling pressurization and pressure release respectively, have only a water-filling pressurization to use valve, the time that sets is longer.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned deficiency, to propose short expanding Wel packing of a kind of time that sets.
The utility model is realized with the following method.
The invention scheme of this expanding Wel packing is to set in the control device of deblocking with the conduct of spring reset one way valve, in order to make the time that sets shorter, adopting a plurality of setting to use the water-filling pressurizing valve, only with a deblocking relief valve.
In order to realize the foregoing invention scheme, this expanding Wel packing have can with flow string with screw thread link to each other on, lower contact, on, be connected with central tube and rubber packing tube between the lower contact, on, lower contact and central tube, the axis of rubber packing tube is on same straight line, rubber packing tube is in the outside of central tube, between rubber packing tube and the central tube annular chamber is arranged, in having in the top connection, the outer radial water hole, be uniformly distributed with in 2～6 radially water hole in the lower contact along the circumference, be uniformly distributed with 2～6 water-filling pressurizing valves in the lower contact along the circumference, the water-filling pressurizing valve is the spring reset one way valve, the inlet of 2～6 water-filling pressurizing valves respectively with lower contact on 2～6 in radially the water hole link to each other, the outlet of 2～6 water-filling pressurizing valves and rubber packing tube link to each other with annular chamber between the central tube, a relief valve is arranged in the top connection, relief valve is the spring reset one way valve that is connected with the hydraulic pressure opening device, the outlet of the spring reset one way valve of relief valve and rubber packing tube link to each other with annular chamber between the central tube, the inlet of the spring reset one way valve of relief valve links to each other with interior radially water hole in the top connection, the valve rod of the spring reset one way valve of relief valve is connected with the hydraulic pressure opening device, the hydraulic pressure opening device has cylinder body, the spring reset piston is arranged in the cylinder body, piston is connected with piston rod, piston rod links to each other with the valve rod of spring reset one way valve, and the liquid of cylinder body advances, outlet links to each other with outer radial water hole in the top connection.
When setting, in flow string, pressurize to central tube water-filling of the present utility model, water under high pressure in the central tube backs down the spring reset one way valve of 2～6 water-filling pressurizing valves in the lower contact from the interior radially water hole in the lower contact spool enters annular chamber between rubber packing tube and the central tube by the spring reset one way valve, one way valve can keep the interior pressure of annular chamber between rubber packing tube and the central tube, and water under high pressure can be tight against rubber packing tube distending at the casing inwall and realize setting; During deblocking, from the high slightly water under high pressure of casing charged pressure, the water under high pressure that pressure is high slightly enters in the cylinder body of relief valve hydraulic pressure opening device in the top connection from the outer radial water hole in the top connection, back down the spring reset one way valve that is attached thereto, water under high pressure in the annular chamber between rubber packing tube and the central tube leaks into central tube through the spring reset one way valve and loses pressure, the rubber packing tube of distending restores, and finishes deblocking.
The utlity model has 2～6 water-filling pressurizing valves that set usefulness, the speed that water-filling sets is fast; The relief valve that deblocking is used is the spring reset one way valve that is connected with the hydraulic pressure opening device, but quick pressure releasing during deblocking.
Below in conjunction with accompanying drawing, the utility model is further described.
Description of drawings
Fig. 1 is that schematic diagram cuts open in the master office of looking of expanding Wel packing;
Fig. 2 is the I place enlarged diagram of Fig. 1;
Fig. 3 is the II place enlarged diagram of Fig. 1;
Fig. 4 is the A-A generalized section of Fig. 1.
The specific embodiment
Fig. 1, Fig. 2, Fig. 3, among Fig. 4, the expanding Wel packing have can with flow string with screw thread link to each other on, lower contact 1,2, on, be connected with central tube 3 and rubber packing tube 4 between the lower contact, on, lower contact and central tube, the axis of rubber packing tube is on same straight line, rubber packing tube is in the outside of central tube, annular chamber 5 is arranged between rubber packing tube and the central tube, in having in the top connection, outer radial water hole 6,7, be uniformly distributed with in four radially water hole 8 in the lower contact along the circumference, be uniformly distributed with four water-filling pressurizing valves 9 in the lower contact along the circumference, the water-filling pressurizing valve is the spring reset one way valve, the inlet 10 of four water-filling pressurizing valves respectively with lower contact on four in radially the water hole link to each other, the outlet 11 of four water-filling pressurizing valves and rubber packing tube link to each other with annular chamber between the central tube, a relief valve 12 is arranged in the top connection, relief valve is the spring reset one way valve 14 that is connected with hydraulic pressure opening device 13, the outlet 15 of the spring reset one way valve of relief valve and rubber packing tube link to each other with annular chamber between the central tube, the inlet 16 of the spring reset one way valve of relief valve links to each other with interior radially water hole in the top connection, the valve rod 17 of the spring reset one way valve of relief valve is connected with the hydraulic pressure opening device, the hydraulic pressure opening device has cylinder body 18, spring reset piston 19 is arranged in the cylinder body, piston is connected with piston rod 20, piston rod links to each other with the valve rod of spring reset one way valve, and the liquid of cylinder body advances, outlet 21 links to each other with outer radial water hole in the top connection.
Claims (2)
1. expanding Wel packing, have can with flow string with screw thread link to each other on, lower contact, on, be connected with central tube and rubber packing tube between the lower contact, on, lower contact and central tube, the axis of rubber packing tube is on same straight line, rubber packing tube is in the outside of central tube, between rubber packing tube and the central tube annular chamber is arranged, in having in the top connection, the outer radial water hole, it is characterized in that: be uniformly distributed with in 2～6 radially water hole in the lower contact along the circumference, be uniformly distributed with 2～6 water-filling pressurizing valves in the lower contact along the circumference, the water-filling pressurizing valve is the spring reset one way valve, the inlet of 2～6 water-filling pressurizing valves respectively with lower contact on 2～6 in radially the water hole link to each other, the outlet of 2～6 water-filling pressurizing valves and rubber packing tube link to each other with annular chamber between the central tube, a relief valve is arranged in the top connection, relief valve is the spring reset one way valve that is connected with the hydraulic pressure opening device, the outlet of the spring reset one way valve of relief valve and rubber packing tube link to each other with annular chamber between the central tube, the inlet of the spring reset one way valve of relief valve links to each other with interior radially water hole in the top connection, the valve rod of the spring reset one way valve of relief valve is connected with the hydraulic pressure opening device, the hydraulic pressure opening device has cylinder body, piston is arranged in the cylinder body, piston is connected with piston rod, piston rod links to each other with the valve rod of spring reset one way valve, and the liquid of cylinder body advances, outlet links to each other with outer radial water hole in the top connection.
2. by the described expanding Wel packing of claim 1, it is characterized in that: the interior radially water hole that is uniformly distributed along the circumference in the described lower contact is four, and the water-filling pressurizing valve that is uniformly distributed along the circumference in the lower contact is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200907560U CN2900771Y (en) | 2006-05-11 | 2006-05-11 | Expansion type oil well packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200907560U CN2900771Y (en) | 2006-05-11 | 2006-05-11 | Expansion type oil well packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2900771Y true CN2900771Y (en) | 2007-05-16 |
Family
ID=38084936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200907560U Expired - Fee Related CN2900771Y (en) | 2006-05-11 | 2006-05-11 | Expansion type oil well packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2900771Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2565368A1 (en) * | 2011-08-31 | 2013-03-06 | Welltec A/S | Annular barrier with pressure amplification |
| CN103982157A (en) * | 2013-02-07 | 2014-08-13 | 韦特福特/兰姆有限公司 | Hydraulic setting packer with piston communicated with annulus |
| CN105401909A (en) * | 2014-08-21 | 2016-03-16 | 中国石油天然气股份有限公司 | Expandable packer and setting method thereof |
| CN105507846A (en) * | 2016-01-22 | 2016-04-20 | 东营市兆鑫工贸有限责任公司 | Expandable fracture packer for preventing midway setting |
| CN108505965A (en) * | 2018-03-23 | 2018-09-07 | 中煤科工集团西安研究院有限公司 | One kind suppressing desealed hydraulic expansion packer and solution encapsulation method |
| CN109469479A (en) * | 2018-11-30 | 2019-03-15 | 天地科技股份有限公司 | Water pressure supporing system and method |
| CN110761757A (en) * | 2019-11-29 | 2020-02-07 | 李杨 | Multi-pipe type high-efficiency stratified water injection adjusting device for balancing water injection quantity |
| CN117888863A (en) * | 2024-03-15 | 2024-04-16 | 东营市华科石油科技开发有限责任公司 | Gravel packing layered sand control completion tool |
-
2006
- 2006-05-11 CN CNU2006200907560U patent/CN2900771Y/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013030283A1 (en) * | 2011-08-31 | 2013-03-07 | Welltec A/S | Annular barrier with pressure amplification |
| CN103732850A (en) * | 2011-08-31 | 2014-04-16 | 韦尔泰克有限公司 | Annular barrier with pressure amplification |
| EP2565368A1 (en) * | 2011-08-31 | 2013-03-06 | Welltec A/S | Annular barrier with pressure amplification |
| US9725980B2 (en) | 2011-08-31 | 2017-08-08 | Welltec A/S | Annular barrier with pressure amplification |
| CN103732850B (en) * | 2011-08-31 | 2016-08-17 | 韦尔泰克有限公司 | There is the annular barrier that pressure amplifies |
| CN103982157A (en) * | 2013-02-07 | 2014-08-13 | 韦特福特/兰姆有限公司 | Hydraulic setting packer with piston communicated with annulus |
| US9512693B2 (en) | 2013-02-17 | 2016-12-06 | Weatherford Technology Holdings, Llc | Hydraulic set packer with piston to annulus communication |
| CN105401909A (en) * | 2014-08-21 | 2016-03-16 | 中国石油天然气股份有限公司 | Expandable packer and setting method thereof |
| CN105401909B (en) * | 2014-08-21 | 2018-04-03 | 中国石油天然气股份有限公司 | Inflatable packer and its set method |
| CN105507846A (en) * | 2016-01-22 | 2016-04-20 | 东营市兆鑫工贸有限责任公司 | Expandable fracture packer for preventing midway setting |
| CN108505965A (en) * | 2018-03-23 | 2018-09-07 | 中煤科工集团西安研究院有限公司 | One kind suppressing desealed hydraulic expansion packer and solution encapsulation method |
| CN109469479A (en) * | 2018-11-30 | 2019-03-15 | 天地科技股份有限公司 | Water pressure supporing system and method |
| CN110761757A (en) * | 2019-11-29 | 2020-02-07 | 李杨 | Multi-pipe type high-efficiency stratified water injection adjusting device for balancing water injection quantity |
| CN110761757B (en) * | 2019-11-29 | 2021-08-06 | 李杨 | Multi-pipe type high-efficiency stratified water injection adjusting device for balancing water injection quantity |
| CN117888863A (en) * | 2024-03-15 | 2024-04-16 | 东营市华科石油科技开发有限责任公司 | Gravel packing layered sand control completion tool |
| CN117888863B (en) * | 2024-03-15 | 2024-05-17 | 东营市华科石油科技开发有限责任公司 | Gravel packing layered sand control completion tool |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070516 Termination date: 20110511 |