CN201103375Y - Bidirectional sealing wedge type packer - Google Patents
Bidirectional sealing wedge type packer Download PDFInfo
- Publication number
- CN201103375Y CN201103375Y CNU200720201537XU CN200720201537U CN201103375Y CN 201103375 Y CN201103375 Y CN 201103375Y CN U200720201537X U CNU200720201537X U CN U200720201537XU CN 200720201537 U CN200720201537 U CN 200720201537U CN 201103375 Y CN201103375 Y CN 201103375Y
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- cone
- packing element
- central tube
- outside
- inboard
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- Expired - Lifetime
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Abstract
The utility model relates to a device for packing oil pipes in an oilfield, being a dual sealing wedged packer. The dual sealing wedged packer includes an upper joint, an upper taper, a central tub, a packer rubber, a lower taper and a lower joint; the inner side of the lower end of the upper joint is connected with the external side of the upper end of the central tube and the inner side of the upper end of the lower joint is connected with the external side of the lower end of the central tube; the packer rubber is sheathed at the external side of the middle of the central tube. The upper taper and the lower taper are mounted at the upper side and the lower side of the packer rubber respectively. The inner sides of the upper taper and the lower taper are in the shape of steps; the lower end of the upper taper is sheathed at the external side of the central tube and blocked at the inner side of the upper end of the packer rubber. Characterized by reasonable and compact structures, convenient use and big swelling ratio, the dual sealing wedged packer is applicable to cased wells, open-hole wells and vertical wells as well as horizontal wells, thus greatly enhancing practicality; in addition, the device of the utility model can seal oil wells along two directions, so as to seal cased wells permanently, thereby lowering the cost remarkably.
Description
One, technical field
The utility model relates to the device of packing oil pipe in the oil field, is a kind of two way seal wedging packer.
Two, background technology
At present the used packer in domestic each oil field mainly is divided into three kinds of compression, expansion type and self-sealings by sealing means, but these packers all can only one-way sealing, seals so generally can only be respectively applied in the specific separately oil well; And these packers can not be oversize to the sealing time of oil well, and the sealing performance of oversize these packers of time will reduce greatly, so not only need repeatedly to change packer, causes cost to improve, and also makes oil well production have potential safety hazard.
Three, summary of the invention
The utility model provides a kind of two way seal wedging packer, has overcome the deficiency of above-mentioned prior art, and it can not only seal multiple oil well, and can seal oil well for a long time.
The technical solution of the utility model realizes by following measure: a kind of two way seal wedging packer comprises top connection, upper cone, central tube, packing element, lower cone and lower contact; The inboard outside, upper end with central tube, the lower end of top connection links together, and the inboard outside, lower end with central tube, the upper end of lower contact links together; Packing element is sleeved on the central tube middle part outside, at the upside and the downside of packing element upper cone and lower cone is arranged respectively, and the inboard of upper cone and lower cone is step-like; The lower end of upper cone is sleeved on the outside of central tube and is stuck in the inboard, upper end of packing element, and the upper end of lower cone is sleeved on the outside of central tube and is stuck in the inboard, lower end of packing element; The upper end of upper cone is sleeved on the outside, lower end of top connection and links together by starting shear pin and top connection, and bottom, the lower end of top connection withstands on the step of upper cone; The lower end of lower cone is sleeved on the outside, upper end of lower contact and links together by starting shear pin and lower contact, and the top, upper end of lower contact withstands on the step of lower cone; Form upper plenum between the top, lower end of the step of upper cone and top connection, through hole on being interlinked to the outside on central tube, having, last through hole communicates with upper plenum; Form cavity down between the top, upper end of the step of lower cone and lower contact, the lower through-hole that is interlinked to the outside on central tube, having, lower through-hole communicates with following cavity.
Be further optimization and/or improvements below to above-mentioned utility model technical scheme:
Above-mentioned packing element can comprise packing element and lower rubber cylinder, at the middle part of central tube boss is arranged, the inboard, lower end of last packing element have can withstand on the boss upside on the packing element inner convex platform; Lower rubber cylinder is arranged below last packing element, the lower rubber cylinder inner convex platform that can withstand on the boss downside is arranged in the inboard, upper end of lower rubber cylinder, the lower end of upper cone is sleeved on the outside of central tube and is stuck in the inboard, upper end of packing element, and the upper end of lower cone is sleeved on the outside of central tube and is stuck in the inboard, lower end of lower rubber cylinder.
Can there be last packing element outer lug boss in the above-mentioned outside, packing element lower end of going up, outside the lower rubber cylinder upper end lower rubber cylinder outer lug boss is arranged, and forms groove between last packing element outer lug boss and the lower rubber cylinder outer lug boss, is set with the adapter sleeve of packing element and lower rubber cylinder on connecting in groove.
Can there be the slot groove that is no less than the lower end of above-mentioned upper cone and the upper end of lower cone, and an end of slot groove communicates with the packing element inboard, and the other end of slot groove communicates with the slot slotted eye.
Between above-mentioned packing element and the central tube sealing ring can be installed.
Between above-mentioned upper cone and/or lower cone and the central tube sealing ring is installed.
Between the outside, upper end of the lower end of the upper end of above-mentioned upper cone and the outside, the lower end of top connection and/or lower cone and lower contact sealing ring is installed.
The utility model reasonable and compact in structure, easy to use, because it has bigger expansion ratio,, also can be used for Vertical Well, horizontal well so can be used for cased well, open hole well, therefore improved practicality greatly; And because therefore energy two way seal oil well can carry out permanent sealing to oil well, need to be specially adapted in the hole condition of sealed-for-life, squeeze stifled and shutoff etc., thereby greatly reduce cost as horizontal well in segments pressure break, open hole well.
Four, description of drawings
Accompanying drawing 2 is the main TV structure schematic diagram of the lower part of the utility model most preferred embodiment;
Coding in the accompanying drawing is respectively: 1 is top connection, and 2 is upper cone, and 3 is central tube, 4 is sealing ring, and 5 is lower cone, and 6 are lower contact, 7 for starting shear pin, and 8 is upper plenum, and 9 is last through hole, 10 are following cavity, 11 is lower through-hole, and 12 is last packing element, and 13 is lower rubber cylinder, 14 is boss, 15 is last packing element inner convex platform, and 16 is the lower rubber cylinder inner convex platform, and 17 is last packing element outer lug boss, 18 is the lower rubber cylinder outer lug boss, 19 is adapter sleeve, and 20 is the step of upper cone, and 21 is the step of lower cone, 22 is the slot groove, and 23 is the slot slotted eye.
Five, the specific embodiment
The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
Shown in accompanying drawing 1,2, this two way seal wedging packer comprises top connection 1, upper cone 2, central tube 3, packing element, lower cone 5 and lower contact 6; The inboard outside, upper end with central tube 3, the lower end of top connection 1 links together, and the inboard outside, lower end with central tube 3, the upper end of lower contact 6 links together; Packing element is sleeved on the central tube 3 middle parts outsides, at the upside and the downside of packing element upper cone 2 and lower cone 5 is arranged respectively, and the inboard of upper cone 2 and lower cone 5 is step-like; The lower end of upper cone 2 is sleeved on the outside of central tube 3 and is stuck in the inboard, upper end of packing element, and the upper end of lower cone 5 is sleeved on the outside of central tube 3 and is stuck in the inboard, lower end of packing element; The upper end of upper cone 2 is sleeved on the outside, lower end of top connection 1 and links together with top connection 1 by starting shear pin 7, and bottom, the lower end of top connection 1 withstands on the step 20 of upper cone; The lower end of lower cone 5 is sleeved on the outside, upper end of lower contact 6 and links together with lower contact 6 by starting shear pin 7, and the top, upper end of lower contact 6 withstands on the step 21 of lower cone; Form upper plenum 8 between the step 20 of upper cone and the top, lower end of top connection 1, through hole 9 on being interlinked to the outside on central tube 3, having, last through hole 9 communicates with upper plenum 8; Form cavity 10 down between the step 21 of lower cone and the top, upper end of lower contact 6, the lower through-hole 11 that is interlinked to the outside on central tube 3, having, lower through-hole 11 communicates with following cavity 10.Like this, after suppressing, last through hole 9 and the lower through-hole 11 of pressure by central tube 3 enters into respectively in upper plenum 8 and the following cavity 10, promotes upper cone 2 and lower cone 5 then respectively packing element is strutted, and finishes two-way setting.
Can according to actual needs above-mentioned two way seal wedging packer be made further optimization and/or improvements:
Shown in accompanying drawing 1,2, packing element comprises packing element 12 and lower rubber cylinder 13, at the middle part of central tube 3 boss 14 is arranged, the inboard, lower end of last packing element 12 have can withstand on boss 14 upsides on packing element inner convex platform 15; Lower rubber cylinder 13 is arranged below last packing element 12, the lower rubber cylinder inner convex platform 16 that can withstand on boss 15 downsides is arranged in the inboard, upper end of lower rubber cylinder 13, the lower end of upper cone 2 is sleeved on the outside of central tube 3 and is stuck in the inboard, upper end of packing element 12, the upper end of lower cone 5 is sleeved on the outside of central tube 3 and is stuck in the inboard, lower end of lower rubber cylinder 13, like this, pressure simultaneously promotes upper cone 2 and will go up packing element 12 and strut, and the pressure another side promotes lower cone 5 lower rubber cylinder 13 is strutted, and two packing elements strut just relatively evenly.
Shown in accompanying drawing 1,2, packing element outer lug boss 17 on the outside, last packing element 12 lower ends has, in the outside, lower rubber cylinder 13 upper ends lower rubber cylinder outer lug boss 18 is arranged, form groove between last packing element outer lug boss 17 and the lower rubber cylinder outer lug boss 18, in groove, be installed with the adapter sleeve 19 of packing element 12 and lower rubber cylinder 13 on fixing.Like this, the upper end of the lower end of last packing element 12 and lower rubber cylinder 13 is connected cover 19 and fixes, just can better strut packing element 12 and lower rubber cylinder 13, and last packing element 12 and lower rubber cylinder 13 preferably adopt wedging formula packing element, like this, form, have the metal steel disc to make skeleton in the wedging formula packing element because wedging formula packing element is rubber and metallic sheath sulfuration, can increase the rigidity of packing element, be convenient to be connected cover 19 and be connected and fixed.
Shown in accompanying drawing 1,2, there is the slot groove 22 that is no less than the upper end of the lower end of upper cone 2 and lower cone 5, and an end of slot groove 22 communicates with packing element, and the other end of slot groove 22 communicates with slot slotted eye 23.When there is pressure in the shaft bottom, can make rubber sealing effectiveness on sleeve pipe better along the rubber of slot groove 22 and slot slotted eye 23 expansion packing elements.
Shown in accompanying drawing 1,2,, between packing element and central tube 3, sealing ring 4 is installed in order to increase sealing.
Shown in accompanying drawing 1,2,, between upper cone 2 and central tube 3, sealing ring 4 is installed in order to increase sealing; Perhaps, between lower cone 5 and central tube 3, sealing ring 4 is installed, perhaps, between upper cone 2 and lower cone 5 and central tube 3, sealing ring 4 is installed simultaneously;
Shown in accompanying drawing 1,2, in order to increase sealing, between the outside, lower end of the upper end of upper cone 2 and top connection 1 sealing ring 4 is installed, simultaneously, the upper end of the lower end of lower cone 5 and lower contact 6 is equipped with sealing ring 4 between the outside; Perhaps, the lower end of the upper end of upper cone 2 and top connection 1 is equipped with sealing ring 4 between the outside, and perhaps, the upper end of the lower end of lower cone 5 and lower contact 6 is equipped with sealing ring 4 between the outside.
Above technical characterictic has constituted most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
The use of the utility model most preferred embodiment: at first the utility model is put down to the planned well deep-seated during use with oil pipe or drilling rod, install well head, in oil pipe or drilling rod, throw one piece of ball, treat that ball drops down onto on the setting ball seat of packer lower end, in oil pipe or drilling rod, suppress, hydraulic action is on two hydraulic cylinders of packer, pressure enters into respectively in upper plenum 8 and the following cavity 10 by the last through hole 9 and the lower through-hole 11 of central tube 3, promote respectively then that upper cone 2 and lower cone 5 will be gone up packing element 12 and lower rubber cylinder 13 struts, and be attached on sleeve pipe (or bore hole) wall, thereby realize the purpose of packing oil jacket annular space, continue to suppress until the sliding sleeve in the setting ball seat is beaten and take off.The utility model both can connect setting ball seat and use separately, also a plurality of the utility model can be connected in series, and pitching is suppressed simultaneously and set.
Claims (10)
1. a two way seal wedging packer is characterized in that comprising top connection, upper cone, central tube, packing element, lower cone and lower contact; The inboard outside, upper end with central tube, the lower end of top connection links together, and the inboard outside, lower end with central tube, the upper end of lower contact links together; Packing element is sleeved on the central tube middle part outside, at the upside and the downside of packing element upper cone and lower cone is arranged respectively, and the inboard of upper cone and lower cone is step-like; The lower end of upper cone is sleeved on the outside of central tube and is stuck in the inboard, upper end of packing element, and the upper end of lower cone is sleeved on the outside of central tube and is stuck in the inboard, lower end of packing element; The upper end of upper cone is sleeved on the outside, lower end of top connection and links together by starting shear pin and top connection, and bottom, the lower end of top connection withstands on the step of upper cone; The lower end of lower cone is sleeved on the outside, upper end of lower contact and links together by starting shear pin and lower contact, and the top, upper end of lower contact withstands on the step of lower cone; Form upper plenum between the top, lower end of the step of upper cone and top connection, through hole on being interlinked to the outside on central tube, having, last through hole communicates with upper plenum; Form cavity down between the top, upper end of the step of lower cone and lower contact, the lower through-hole that is interlinked to the outside on central tube, having, lower through-hole communicates with following cavity.
2. two way seal wedging packer according to claim 1 is characterized in that packing element comprises packing element and lower rubber cylinder, at the middle part of central tube boss is arranged, the inboard, lower end of last packing element have can withstand on the boss upside on the packing element inner convex platform; Lower rubber cylinder is arranged below last packing element, the lower rubber cylinder inner convex platform that can withstand on the boss downside is arranged in the inboard, upper end of lower rubber cylinder, the lower end of upper cone is sleeved on the outside of central tube and is stuck in the inboard, upper end of packing element, and the upper end of lower cone is sleeved on the outside of central tube and is stuck in the inboard, lower end of lower rubber cylinder.
3. two way seal wedging packer according to claim 2, it is characterized in that there is last packing element outer lug boss in the outside, packing element lower end, in the outside, lower rubber cylinder upper end the lower rubber cylinder outer lug boss is arranged, form groove between last packing element outer lug boss and the lower rubber cylinder outer lug boss, in groove, be installed with the adapter sleeve of packing element and lower rubber cylinder on fixing.
4. according to claim 1 or 2 or 3 described two way seal wedging packers, it is characterized in that there is the slot groove that is no less than the lower end of upper cone and the upper end of lower cone, one end of slot groove communicates with the packing element inboard, and the other end of slot groove communicates with the slot slotted eye.
5. according to claim 1 or 2 or 3 described two way seal wedging packers, it is characterized in that between packing element and the central tube sealing ring being installed.
6. two way seal wedging packer according to claim 4 is characterized in that between packing element and the central tube sealing ring being installed.
7. according to claim 1 or 2 or 3 described two way seal wedging packers, it is characterized in that between upper cone and/or lower cone and the central tube sealing ring being installed.
8. two way seal wedging packer according to claim 6 is characterized in that between upper cone and/or lower cone and the central tube sealing ring being installed.
9. according to claim 1 or 2 or 3 described two way seal wedging packers, sealing ring is installed between outside the lower end that it is characterized in that the outside, lower end of the upper end of upper cone and top connection and/or lower cone and the upper end of lower contact.
10. between outside the two way seal wedging packer according to claim 8, the lower end that it is characterized in that the outside, lower end of the upper end of upper cone and top connection and/or lower cone and the upper end of lower contact sealing ring is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720201537XU CN201103375Y (en) | 2007-11-30 | 2007-11-30 | Bidirectional sealing wedge type packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720201537XU CN201103375Y (en) | 2007-11-30 | 2007-11-30 | Bidirectional sealing wedge type packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201103375Y true CN201103375Y (en) | 2008-08-20 |
Family
ID=39950400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720201537XU Expired - Lifetime CN201103375Y (en) | 2007-11-30 | 2007-11-30 | Bidirectional sealing wedge type packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201103375Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536157A (en) * | 2012-02-29 | 2012-07-04 | 中国石油天然气股份有限公司 | Packer for intelligent well completion |
| CN103015943A (en) * | 2011-09-26 | 2013-04-03 | 王桂录 | Metal sealing mechanism for packer |
| CN105756609A (en) * | 2014-12-17 | 2016-07-13 | 中国石油天然气股份有限公司 | Packer |
| CN107345478A (en) * | 2016-05-06 | 2017-11-14 | 中国石油化工股份有限公司 | A kind of Bidirectional-squeezing formula packer body |
| CN107842337A (en) * | 2016-09-18 | 2018-03-27 | 中国石油化工股份有限公司 | Underground HTHP seal combination |
| CN108222879A (en) * | 2018-01-12 | 2018-06-29 | 大庆市天德忠石油科技有限公司 | A kind of double acting set packer |
-
2007
- 2007-11-30 CN CNU200720201537XU patent/CN201103375Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015943A (en) * | 2011-09-26 | 2013-04-03 | 王桂录 | Metal sealing mechanism for packer |
| CN102536157A (en) * | 2012-02-29 | 2012-07-04 | 中国石油天然气股份有限公司 | Packer for intelligent well completion |
| CN105756609A (en) * | 2014-12-17 | 2016-07-13 | 中国石油天然气股份有限公司 | Packer |
| CN107345478A (en) * | 2016-05-06 | 2017-11-14 | 中国石油化工股份有限公司 | A kind of Bidirectional-squeezing formula packer body |
| CN107842337A (en) * | 2016-09-18 | 2018-03-27 | 中国石油化工股份有限公司 | Underground HTHP seal combination |
| CN108222879A (en) * | 2018-01-12 | 2018-06-29 | 大庆市天德忠石油科技有限公司 | A kind of double acting set packer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080820 |