CN202402005U - High pressure water injection packer with long rubber barrel - Google Patents
High pressure water injection packer with long rubber barrel Download PDFInfo
- Publication number
- CN202402005U CN202402005U CN2012200052587U CN201220005258U CN202402005U CN 202402005 U CN202402005 U CN 202402005U CN 2012200052587 U CN2012200052587 U CN 2012200052587U CN 201220005258 U CN201220005258 U CN 201220005258U CN 202402005 U CN202402005 U CN 202402005U
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- Prior art keywords
- packing element
- piston
- rubber
- water injection
- deblocking
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Abstract
The utility model discloses a high pressure water injection packer with a long rubber barrel, which comprises a rubber barrel and a central tube, wherein the rubber barrel is sheathed outside the central tube, the upper end of the rubber barrel is connected with an upper press cap, the lower end of the rubber barrel is connected with a lower press cap, the upper end of the upper press cap is connected with an upper joint, the lower end of the lower press cap is connected with a lower joint, a hole channel is formed in the upper joint, a multifunctional valve system which is used for setting and unsetting the packer is arranged in the hole channel, a pressure-releasing hole is formed in the upper joint and is communicated at the upper end of the multifunctional valve system, and a liquid in-out hole is formed in the inner side end of the packer and is correspondingly communicated with the inner side of the multifunctional valve system.
Description
Technical field
The utility model relates to a kind of long packing element type high pressure water injection packer.
Background technology
Relevant long packing element type high pressure water injection packer sets water injection packer for bivalve pressure reduction, and like Fig. 1, shown in Figure 1A and Figure 1B, said bivalve pressure reduction sets water injection packer and comprises long packing element type 1 ' and central tube 2 ', and long packing element type 1 ' is enclosed within outside the central tube 2 '.The upper end of said packing element 1 ' is connected with upper pressing cap 3a ', and the lower end of packing element 1 ' is connected with lower pressing cap 3b ', and the upper end of said upper pressing cap 3a ' connects top connection 4a ', and the lower end of said lower pressing cap 3b ' connects lower contact 4b '.Said top connection 4a ' inside has one and goes up duct 5a ', and said going up in the duct is provided with deblocking valve (shown in Figure 1A).Said lower contact 4b ' inside has a following duct 5b ', and said have small one and large one two apertures in the 5b ' of duct down, is provided with the envelope valve (shown in Figure 1B) that expands in the said duct 5b ' down.
That is to say, above-mentioned water injection packer, its deblocking is made up of two valve systems with the envelope that expands; So increased leakage points; Simultaneously the deblocking valve rod in motion process owing to need through two different apertures, repeatedly during the well-flushing deblocking the reducing place cause easily that sealing ring damages and part 6 ' on vulcanized rubber damage, though and packing element both sides casing adopt chamfered; But repeatedly puncture packing element easily during the well-flushing deblocking, cause that packer lost efficacy.
The utility model content
The purpose of the utility model is, a kind of long packing element type high pressure water injection packer is provided, and it carries out repeatedly the well-flushing deblocking also makes the sealing of packer be difficult for leakage.
The above-mentioned purpose of the utility model can adopt following technical proposal to realize:
A kind of long packing element type high pressure water injection packer, said packer comprises packing element and central tube, said packing element is enclosed within outside the central tube; The upper end of said packing element is connected with upper pressing cap, and the lower end of packing element is connected with lower pressing cap, and the upper end of said upper pressing cap connects top connection; The lower end of said lower pressing cap connects lower contact, and said top connection inside has a duct, is provided with the multifunction valve system that is used for said packer setting and deblocking in the said duct; Said top connection is provided with the decompress(ion) hole; Said decompress(ion) hole is communicated with the upper end that is at said multifunction valve, and the medial extremity of said packer is provided with liquid inlet/outlet, the inboard of the said multifunction valve of the corresponding connection of said liquid inlet/outlet system.
In preferred embodiment; Said multifunction valve is to comprise piston bush; The outside of said piston bush is connected in the said duct ordinatedly, and said piston bush inside has sealing station and deblocking position, and said sealing station is positioned at the top of deblocking position; Be provided with seal in the said piston bush, said seal can move between sealing station and deblocking position.
In preferred embodiment; Said seal comprises sealed steel ball; Piston bush spring and piston bush compressing tablet, said piston bush compressing tablet is fixedly connected on the lower end of said piston bush, and the center of piston bush compressing tablet is provided with water stream channel; Said piston bush spring top is against between said sealed steel ball and the piston bush compressing tablet, and said sealed steel ball can move between said sealing station and deblocking position.
In preferred embodiment; Said multifunction valve is also to comprise the deblocking piston; Said deblocking piston comprises piston head and the piston rod that is connected the piston head lower end, is wound with back-moving spring on the said piston rod, and said back-moving spring top is against between said piston head and the said piston bush; Said piston head can move up and down in said duct; And drive said piston rod and in said piston bush, move up and down, when said piston rod moves down, can said sealed steel ball be pushed up the deblocking position from said sealing station; Said liquid inlet/outlet is positioned at the below of said piston head, and corresponding the position of said piston rod.
In preferred embodiment, be provided with the sealing plug between said top connection and the said upper pressing cap.
In preferred embodiment; Rubber and outer rubber in said packing element comprises; Be provided with the elasticity ligament between the said inside and outside rubber, the upper and lower end of said outer rubber is connected with packing element sheath and lower rubber cylinder sheath respectively, and said upper end of going up the packing element sheath connects gluing socket joint head; The lower end of said lower rubber cylinder sheath connects the lower rubber cylinder joint, and said upper and lower packing element sheath and upper and lower packing element joint all are positioned at the outside of said rubber.
In preferred embodiment, said upper and lower packing element sheath all adopts rounded feature processing.
In preferred embodiment, the upper and lower end of said interior rubber is provided with interior rubber hold-down ring and following interior rubber hold-down ring, and the upper end of said interior rubber hold-down ring is provided with upper baffle ring, and the lower end of said down interior rubber hold-down ring is provided with lower baffle ring.
The characteristics and the advantage of the water injection packer of the utility model are: its multifunction valve system can realize packer setting and deblocking; And multifunction valve system is arranged in the duct of top connection; Be that setting with deblocking of packing element only need get final product through an aperture, also make the sealing of packer be difficult for leakage even if packer like this carries out repeatedly the well-flushing deblocking.Therefore, setting and the deblocking mode of the water injection packer of present embodiment has construction simply, seals characteristics such as reliable.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the water injection packer of being correlated with;
Figure 1A is the A portion enlarged diagram of Fig. 1;
Figure 1B is the B portion enlarged diagram of Fig. 1;
Fig. 2 is the structural representation of the water injection packer of the utility model embodiment;
Fig. 2 A is the C portion enlarged diagram of Fig. 2;
Fig. 3 is the structural representation of packing element of the water injection packer of the utility model embodiment.
The specific embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Upper-lower position described in this paper is to be directed against the user mode of water injection packer after getting into the down-hole, and comparatively speaking, the top connection position of said water injection packer is last, and the lower contact position is down.
Shown in Fig. 2 and 2A, the long packing element type high pressure water injection packer of the utility model embodiment, it comprises packing element 1 and central tube 2; Said packing element 1 is enclosed within outside the central tube 2, and the upper end of said packing element 1 is connected with upper pressing cap 3a, and the lower end of packing element 1 is connected with lower pressing cap 3b; The upper end of said upper pressing cap 3a connects top connection 4a; The lower end of said lower pressing cap 3b connects lower contact 4b, and said top connection 4a inside has a duct 5, and being provided with the multifunction valve that is used for said packer setting and deblocking in the said duct 5 is 6; Said top connection 4a is provided with decompress(ion) hole 7; It is 6 upper end that said decompress(ion) hole 7 is communicated with at said multifunction valve, and the medial extremity of said packer is provided with liquid inlet/outlet 8, and said liquid inlet/outlet 8 is corresponding, and to be communicated with said multifunction valve be 6 inboard.
When the packer lower going-into-well uses down; During water filling, liquid is in the space between 6 said central tubes 2 of entering and the packing element 1 through multifunction valve from said liquid inlet/outlet 8 entering ducts 5; Make said packing element 1 Expansion sealing oil jacket annular space, this moment, packing element 1 was in sealing state.After stopping annotating, in the time of need carrying out deblocking and well-flushing to packer, suppressed by the oil jacket annular space, it is 6 that pressure passes to multifunction valve through decompress(ion) hole 7, and the liquid passing hole channel 5 in the packing element 1 is let out central tube 2 inside from liquid inlet/outlet 8, and packing element 6 reclaims.
In the present embodiment; Multifunction valve is 6 can realize packer setting and deblocking; And multifunction valve is 6 to be arranged in the duct 5 of top connection 4a; Be that setting with deblocking of packing element 1 only need get final product through an aperture, also make the sealing of packer be difficult for leakage even if packer like this carries out repeatedly the well-flushing deblocking.Therefore, setting and the deblocking mode of the water injection packer of present embodiment has construction simply, seals characteristics such as reliable.
An embodiment according to the utility model; Said multifunction valve is 6 to comprise piston bush 6a; The outside of said piston bush 6a is connected in the said duct 5 ordinatedly, and said piston bush 6a inside has sealing station and deblocking position, and said sealing station is positioned at the top of deblocking position; Be provided with seal 6b in the said piston bush 6a, said seal can move between sealing station and deblocking position.Particularly, said piston bush 6a inside has small one and large one two apertures, and the small-bore is positioned at wide-aperture top; When seal 6b moves to when cooperating with the small-bore, duct 5 is in sealing state, cooperates with the small-bore and when being in the large aperture when seal 6b breaks away from; Duct 5 is in the deblocking state; In other words, said small-bore is the sealing station of seal b6, and the large aperture is the deblocking position of seal 6b.
Furthermore; Said seal 6b comprises sealed steel ball 6b1; Piston bush spring 6b2 and piston bush compressing tablet 6b3, said piston bush compressing tablet 6b3 is fixedly connected on the lower end of said piston bush 6a, and the center of piston bush compressing tablet 6b3 is provided with water stream channel 6b4; Said piston bush spring 6b2 top is against between said sealed steel ball 6b1 and the piston bush compressing tablet 6b3, and said sealed steel ball 6b 1 can move between said sealing station and deblocking position.
An embodiment according to the utility model; Said multifunction valve is 6 also to comprise deblocking piston 6c; Said deblocking piston 6c comprises piston head 6c1 and the piston rod 6c2 that is connected piston head 6c1 lower end, is wound with back-moving spring 6c3 on the said piston rod 6c2, and said back-moving spring 6c3 top is against between said piston head 6c 1 and the said piston bush 6a; Said piston head 6c1 can move up and down in said duct 5; And drive said piston rod 6c2 and in said piston bush 6a, move up and down, when said piston rod 6c2 moves down, can said sealed steel ball 6b1 be pushed up the deblocking position from said sealing station; Said liquid inlet/outlet 8 is positioned at the below of said piston head 6c1, and corresponding the position of said piston rod 6c2.
Be provided with sealing plug 9 between said top connection 4a and the upper pressing cap 3a, in case the solution stopping body flows out between top connection 4a and upper pressing cap 3a.
Specifically describe the setting and deblocking, washing well process of water injection packer of present embodiment below:
During water filling, liquid promotes sealed steel ball 6b1 and moves downward through in the liquid inlet/outlet 8 entering duct 5; Simultaneously compression piston sleeve spring 6b2 makes sealed steel ball 6b1 be in the deblocking position, promptly duct 5 this advance not to be in sealing state; Liquid passing hole channel 5 gets into the gap between central tubes 2 and the packing element 1, makes said packing element 1 Expansion sealing oil jacket annular space, treat pressure stability after; Sealed steel ball 6b1 sets back under the effect of piston bush spring 6b2; Be that sealed steel ball 6b1 returns to sealing station, this moment, packing element 1 was in sealing state all the time, and packer is in the state of setting.
After stopping annotating, suppressed by the oil jacket annular space, pressure passes to deblocking piston 6c through decompress(ion) hole 7; Piston head 6c1 is moved downward, drive piston rod 6c2 and move downward, back down sealed steel ball 6b1; Make sealed steel ball 6b1 be in the deblocking position; Open in duct 5, and liquid passing hole channel 5 is let out central tube 2 inside from liquid inlet/outlet 8 in the packing element 2, and packing element 1 reclaims.
An embodiment according to the utility model; As shown in Figure 3; Rubber 1a and outer rubber 1b in said packing element 1 comprises; Be provided with elasticity ligament 1c between said inside and outside rubber 1a, the 1b, the upper and lower end of said outer rubber 1b is connected with packing element sheath 1d and lower rubber cylinder sheath 1e respectively, and the upper end of the said packing element sheath 1d of going up connects gluing socket joint head 1f; The lower end of said lower rubber cylinder sheath 1e connects lower rubber cylinder joint 1g, and said upper and lower packing element sheath 1d, 1e and upper and lower packing element joint 1f, 1g all are positioned at the outside of said rubber 1a.In the present embodiment, owing between inside and outside rubber 1a, 1b, be provided with elasticity ligament 1c, make the pressure-bearing of packer improve greatly, can be greater than 60MPa, thus can solve high pressure, a deep-well water filling difficult problem.
Furthermore, said upper and lower packing element sheath 1d, 1e all adopt rounded feature processing.
Rubber hold-down ring 1h and following interior rubber hold-down ring 1i in the upper and lower end of rubber 1a is provided with in said, the upper end of rubber hold-down ring 1h is provided with upper baffle ring 1j in said the going up, and the lower end of said down interior rubber hold-down ring 1i is provided with lower baffle ring 1k.
The above is merely several embodiment of the utility model, and those skilled in the art can carry out various changes or modification to the utility model embodiment and do not break away from the spirit and the scope of the utility model according to application documents are disclosed.
Claims (8)
1. a long packing element type high pressure water injection packer is characterized in that said packer comprises packing element and central tube; Said packing element is enclosed within outside the central tube, and the upper end of said packing element is connected with upper pressing cap, and the lower end of packing element is connected with lower pressing cap; The upper end of said upper pressing cap connects top connection; The lower end of said lower pressing cap connects lower contact, and said top connection inside has a duct, is provided with the multifunction valve system that is used for said packer setting and deblocking in the said duct; Said top connection is provided with the decompress(ion) hole; Said decompress(ion) hole is communicated with the upper end that is at said multifunction valve, and the medial extremity of said packer is provided with liquid inlet/outlet, the inboard of the said multifunction valve of the corresponding connection of said liquid inlet/outlet system.
2. long packing element type high pressure water injection packer according to claim 1; It is characterized in that said multifunction valve is to comprise that piston bush, the outside of said piston bush are connected in the said duct ordinatedly; Said piston bush inside has sealing station and deblocking position; Said sealing station is positioned at the top of deblocking position, is provided with seal in the said piston bush, and said seal can move between sealing station and deblocking position.
3. long packing element type high pressure water injection packer according to claim 2; It is characterized in that said seal comprises sealed steel ball, piston bush spring and piston bush compressing tablet; Said piston bush compressing tablet is fixedly connected on the lower end of said piston bush; The center of piston bush compressing tablet is provided with water stream channel, and said piston bush spring top is against between said sealed steel ball and the piston bush compressing tablet, and said sealed steel ball can move between said sealing station and deblocking position.
4. long packing element type high pressure water injection packer according to claim 2; It is characterized in that said multifunction valve is to comprise that also deblocking piston, said deblocking piston comprise piston head and the piston rod that is connected the piston head lower end; Be wound with back-moving spring on the said piston rod; Said back-moving spring top is against between said piston head and the said piston bush, and said piston head can move up and down in said duct, and drives said piston rod and in said piston bush, move up and down; When said piston rod moves down, can said sealed steel ball be pushed up the deblocking position from said sealing station; Said liquid inlet/outlet is positioned at the below of said piston head, and corresponding the position of said piston rod.
5. long packing element type high pressure water injection packer according to claim 4 is characterized in that, is provided with the sealing plug between said top connection and the said upper pressing cap.
6. according to any described long packing element type high pressure water injection packer of claim 1 to 5; It is characterized in that; Rubber and outer rubber in said packing element comprises; Be provided with the elasticity ligament between the said inside and outside rubber, the upper and lower end of said outer rubber is connected with packing element sheath and lower rubber cylinder sheath respectively, and said upper end of going up the packing element sheath connects gluing socket joint head; The lower end of said lower rubber cylinder sheath connects the lower rubber cylinder joint, and said upper and lower packing element sheath and upper and lower packing element joint all are positioned at the outside of said rubber.
7. long packing element type high pressure water injection packer according to claim 6 is characterized in that, said upper and lower packing element sheath all adopts rounded feature processing.
8. long packing element type high pressure water injection packer according to claim 6; It is characterized in that; Rubber hold-down ring and following interior rubber hold-down ring in the upper and lower end of rubber is provided with in said, the upper end of rubber hold-down ring is provided with upper baffle ring in said the going up, and the lower end of said down interior rubber hold-down ring is provided with lower baffle ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200052587U CN202402005U (en) | 2012-01-06 | 2012-01-06 | High pressure water injection packer with long rubber barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200052587U CN202402005U (en) | 2012-01-06 | 2012-01-06 | High pressure water injection packer with long rubber barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202402005U true CN202402005U (en) | 2012-08-29 |
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ID=46699656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200052587U Expired - Fee Related CN202402005U (en) | 2012-01-06 | 2012-01-06 | High pressure water injection packer with long rubber barrel |
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| Country | Link |
|---|---|
| CN (1) | CN202402005U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2012
- 2012-01-06 CN CN2012200052587U patent/CN202402005U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20210106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |