CN2739352Y - Expanding water injection well packer - Google Patents
Expanding water injection well packer Download PDFInfo
- Publication number
- CN2739352Y CN2739352Y CN 200420107122 CN200420107122U CN2739352Y CN 2739352 Y CN2739352 Y CN 2739352Y CN 200420107122 CN200420107122 CN 200420107122 CN 200420107122 U CN200420107122 U CN 200420107122U CN 2739352 Y CN2739352 Y CN 2739352Y
- Authority
- CN
- China
- Prior art keywords
- joint
- water
- sealing mechanism
- packing element
- barrel
- 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
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- Revetment (AREA)
Abstract
The utility model provides an expanding water-injecting well packer, which is composed of an upper joint, a base-sealing mechanism, an upper connecting head, a rubber-barrel joint, a rubber barrel, an inner pipe, a lower rubber-barrel joint, a lower connecting head, a stand-by removing seal pin, a lower joint and a removing seal mechanism. When the water is injected, the injected water enters into the base-sealing mechanism for sealing the oil-sleeve pipe after the rubber barrel expanded via the left hole of the inner wall of the upper joint. A single flow valve is arranged in the base-sealing mechanism and the water of the rubber barrel can not flow out. Thus, when the water-injecting well stops injecting water, the rubber barrel can not contract. The damage created by the repeated contraction and expansion of the rubber barrel can be avoided. When the inversed well cleanout is removed seal, the pressure of the well cleanout enters into the removing seal mechanism from the right hole of the outer wall of the upper joint. The pressure of the rubber barrel is expelled from the right hole of the inner wall of the upper joint for realizing the removing seal. When the removing seal mechanism is out of order created by the scale formation in the higher temperature of the injected water, the packer is raised in the working. The axial force can be generated under the friction force of the rubber barrel and the sleeve pipe. The packer is removed seal after the stand-by removing seal pin is cut off.
Description
One, technical field
The utility model is a kind of expanding water injection well packer that separated-zone water infection oil field is used.
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.The patent No. is 00202259.1 the pressure reduction envelope backwash desealed water injection packer that expands, and 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 because it is higher to inject the water temperature of water, fouling easily causes that to separate sealing mechanism malfunctioning, can not deblocking during anti-flushing well, cause that packer damages or because of not blocking tubing string by deblocking.
Three, summary of the invention
The purpose of this utility model provides a kind of standby expanding water injection well packer of separating sealing mechanism that has, and guarantees fully smoothly deblocking of expanding water injection well packer, avoids expanding water injection well packer because of can not deblocking damaging and block tubing string.
The purpose of this utility model be achieved in that it by top sub, seat sealing mechanism, go up coupling head, gluing socket joint head, packing element, interior pipe, lower rubber cylinder joint, second line of a couplet joint, standby deblocking pin, bottom joint, the 11st, separate sealing mechanism and form.The top sub bottom is sleeved on outside the coupling head top, gluing socket joint head connects with last coupling head internal whorl, gluing socket joint head bottom and packing element top are sulfided into one, lower rubber cylinder joint top and packing element bottom sulfuration adult, the lower rubber cylinder joint connects with second line of a couplet joint internal whorl, packing element is sleeved on outside the interior pipe, interior pipe top connects with the top sub lower thread, interior pipe bottom and joint top, bottom thread connection, second line of a couplet joint bottom is sleeved on outside the joint top, bottom, and second line of a couplet joint is connected by standby deblocking pin with the bottom joint.Mount pad sealing mechanism in the inclined to one side hole, top sub left side is installed in the inclined to one side hole, top sub right side and is separated sealing mechanism.During water filling, inject water Seal Oil sleeve pipe after hole, a top sub inwall left side enters a sealing mechanism to make the packing element expansion, in the seat sealing mechanism ball-and-seat is arranged, water in the packing element can not flow out, therefore, packing element can not shrink yet after water injection well stops to annotate for some reason, and packing element can not shrink repeatedly, expand and damage.During deblocking, anti-flushing well, well-flushing pressure enter from the right hole of top sub outer wall and separate sealing mechanism, and the pressure in the packing element is discharged from the right hole of top sub inwall, realize deblocking.As cause after the higher fouling of the water temperature of injecting water and separate sealing mechanism when malfunctioning, carry packer on during operation, under the frictional force effect of packing element and sleeve pipe, produce axial force, make standby deblocking pin cut off back packer deblocking.
The beneficial effects of the utility model are: separate sealing mechanism when malfunctioning owing to inject to cause after the higher fouling of water temperature of water, can cut off deblocking behind the standby pin, can not cause packer to damage and can not deblocking and block tubing string.
Four, description of drawings
Accompanying drawing is a structure assembling drawing of the present utility model.
Five, the specific embodiment
In the drawings: the 1st, top sub, the 2nd, a sealing mechanism, the 3rd, last coupling head, the 4th, gluing socket joint head, the 5th, packing element, the 6th, interior pipe, the 7th, the lower rubber cylinder joint, the 8th, second line of a couplet joint, the 9th, standby deblocking pin, the 10th, the bottom joint, the 11st, separate sealing mechanism.Be the utility model by top sub 1, seat sealing mechanism 2, go up coupling head 3, gluing socket joint head 4, packing element 5, interior pipe 6, lower rubber cylinder joint 7, second line of a couplet joint 8, standby deblocking pin 9, bottom joint 10, separate sealing mechanism 11 and form.Top sub 1 bottom is sleeved on outside coupling head 3 tops, gluing socket joint head 4 connects with last coupling head 3 internal whorls, gluing socket joint head 4 bottoms and packing element 5 tops are sulfided into one, lower rubber cylinder joint 7 tops and packing element 5 bottoms are sulfided into one, lower rubber cylinder joint 7 connects with second line of a couplet joint 8 internal whorls, manage outside 6 in packing element 5 is sleeved on, interior pipe 6 tops connect with top sub 1 lower thread, interior pipe 6 bottoms and bottom joint 10 top thread connection, second line of a couplet joint 8 bottoms are sleeved on outside bottom joint 10 tops, and second line of a couplet joint 8 is connected by standby deblocking pin 9 with bottom joint 11.Mount pad sealing mechanism 2 in the inclined to one side hole, top sub 1 left side is installed in the inclined to one side hole, top sub 1 right side and is separated sealing mechanism 11.During water filling, inject water Seal Oil sleeve pipe after hole, top sub 1 an inwall left side enters a sealing mechanism 2 to make packing element 5 expansions, in the seat sealing mechanism ball-and-seat is arranged, water in the packing element 5 can not flow out, therefore, packing element 5 can not shrink yet after water injection well stops to annotate for some reason, and packing element 5 can not shrink repeatedly, expand and damage.During deblocking, anti-flushing well, well-flushing pressure enter from the right hole of top sub 1 outer wall and separate sealing mechanism 11, and the pressure in the packing element 5 is discharged from the right hole of top sub 1 inwall, realize deblocking.As cause after the higher fouling of the water temperature of injecting water and separate sealing mechanism 11 when malfunctioning, carry packer on during operation, under the frictional force effect of packing element 5 and sleeve pipe, produce axial force, make standby deblocking pin 9 cut off back packer deblocking.
Claims (1)
1, a kind of expanding water injection well packer, it is by top sub (1), seat sealing mechanism (2), last coupling head (3), gluing socket joint head (4), packing element (5), interior pipe (6), lower rubber cylinder joint (7), second line of a couplet joint (8), standby deblocking pin (9), bottom joint (10), separating sealing mechanism (11) forms, it is characterized in that: top sub (1) bottom is sleeved on outside coupling head (3) top, gluing socket joint head (4) connects with last coupling head (3) internal whorl, gluing socket joint head (4) bottom and packing element (5) top are sulfided into one, lower rubber cylinder joint (7) top and packing element (5) bottom are sulfided into one, lower rubber cylinder joint (7) connects with second line of a couplet joint (8) internal whorl, packing element (5) is sleeved on outside the interior pipe (6), interior pipe (6) top connects with top sub (1) lower thread, interior pipe (6) bottom and bottom joint (10) top thread connection, second line of a couplet joint (8) bottom is sleeved on outside bottom joint (10) top, second line of a couplet joint (8) is connected by standby deblocking pin (9) with bottom joint (11), mount pad sealing mechanism (2) in the inclined to one side hole, top sub (1) left side is installed in the inclined to one side hole, top sub (1) right side and is separated sealing mechanism (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420107122 CN2739352Y (en) | 2004-10-24 | 2004-10-24 | Expanding water injection well packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420107122 CN2739352Y (en) | 2004-10-24 | 2004-10-24 | Expanding water injection well packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2739352Y true CN2739352Y (en) | 2005-11-09 |
Family
ID=35354418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420107122 Expired - Fee Related CN2739352Y (en) | 2004-10-24 | 2004-10-24 | Expanding water injection well packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2739352Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265233A (en) * | 2014-09-18 | 2015-01-07 | 天津五一机电设备有限公司 | Membrane expansion type packer |
| CN110439501A (en) * | 2019-09-25 | 2019-11-12 | 辽宁新华仪器有限公司 | Small deblocking power packer |
-
2004
- 2004-10-24 CN CN 200420107122 patent/CN2739352Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265233A (en) * | 2014-09-18 | 2015-01-07 | 天津五一机电设备有限公司 | Membrane expansion type packer |
| CN104265233B (en) * | 2014-09-18 | 2016-09-07 | 天津五一机电设备有限公司 | Barrier film inflatable packer |
| CN110439501A (en) * | 2019-09-25 | 2019-11-12 | 辽宁新华仪器有限公司 | Small deblocking power packer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |