CN203961889U - Self-seal-checking Y445 packer - Google Patents
Self-seal-checking Y445 packer Download PDFInfo
- Publication number
- CN203961889U CN203961889U CN201420300927.2U CN201420300927U CN203961889U CN 203961889 U CN203961889 U CN 203961889U CN 201420300927 U CN201420300927 U CN 201420300927U CN 203961889 U CN203961889 U CN 203961889U
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- Prior art keywords
- socketed
- packer
- packing element
- central tube
- outside
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- Expired - Fee Related
Links
- 238000012360 testing method Methods 0.000 claims abstract description 77
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 238000012856 packing Methods 0.000 claims description 80
- 230000000903 blocking effect Effects 0.000 claims description 8
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000033558 biomineral tissue development Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000007363 ring formation reaction Methods 0.000 description 2
- 238000010306 acid treatment Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model provides a from Y445 packer of examining sealing, from Y445 packer of examining sealing includes: a first central tube ; the upper joint (1) is sleeved at the upper end of the first central pipe ; the hydraulic cylinder (3) is sleeved outside the upper joint (1); the connecting body (9) is sleeved outside the first central pipe and is positioned below the upper joint (1); the piston (8) is sleeved between the hydraulic cylinder (3) and the connecting body (9); the upper end of the releasing pawl spring (12) is sleeved outside the connecting body (9); the rubber barrel core tube (11) is sleeved outside the releasing pawl spring (12); and the upper adjusting cap (10) is sleeved on the outer side of the top end of the rubber cylinder core pipe (11) and is connected with the hydraulic cylinder (3). The utility model discloses it is little to have relatively easy deblocking, midway release rate, and can directly test the sealing certainly after the seat, can directly follow the ground and observe the setting effect.
Description
Technical field
The utility model relates to a kind of Y445 packer, in particular to a kind of Y445 packer from testing envelope.
Background technology
Y445 packer, as a kind of oil field down-hole plugging instrument, is widely used in shutoff lower well section when oil-water well separate stratum fracfturing, separate layer acid treatment, formation testing by layer are constructed in oil field prospecting and exploitation.It has solved preferably and has set, deblocking, salvaging complicated operation, uses the low problem of success rate.In function, part can substitute permanent type bridging plug and the grey shutoff of note, is a kind of safe and reliable, with low cost, multiple functional down-hole plugging instrument.
But there is the defect that can not certainly test envelope in existing Y445 at present.In addition also there is the defect of deblocking difficulty.In addition, also has the defect of easily giving up midway.
In sum, in prior art, at least exist following problem: Y445 to exist and can not certainly test envelope.
Utility model content
The utility model provides a kind of Y445 packer from testing envelope, to solve existing Y445, has the defect that can not certainly test envelope.
For this reason, the utility model proposes a kind of Y445 packer from testing envelope, the described Y445 packer from testing envelope comprises:
The first central tube 4;
Be socketed in the top connection 1 of described the first central tube 4 upper ends;
Hydraulic cylinder 3, is socketed in outside described top connection 1;
Connector 9, is socketed in outside described the first central tube 4 and is positioned under top connection 1;
Piston 8, is annular, be socketed between described hydraulic cylinder 3 and described connector 9, and described piston 8 connects described hydraulic cylinder 3;
The pawl spring 12 of giving up, is socketed in outside described top connection 1, and described in the give up upper end of pawl spring 12 be socketed in outside described connector 9;
Packing element core pipe 11, outside the pawl spring 12 of giving up described in being socketed in;
The first packing element 13, the second packing element 15, the 3rd packing element 130 and the 4th packing element 150 are socketed in outside described packing element core pipe 11, and abut against successively under adjustment cap 10;
Test excluder ring 19, be socketed in outside described packing element core pipe 11, and between the second packing element 15 and the 3rd packing element 130;
Two spaced fixedly spacer rings 14, are socketed in outside described packing element core pipe 11, and lay respectively between the first packing element 13 and the second packing element 15, and between the 3rd packing element 130 and the 4th packing element 150.
Further, the described Y445 packer from testing envelope also comprises: the second central tube 20, is socketed between described ball seat 18 and described packing element core pipe 11;
Lower adjustment cap 21, is socketed on described the second central tube 20, and is positioned under described the 4th packing element 150;
Retaining ring 23, is socketed between described lower adjustment cap 21 and packing element core pipe 11;
The second shear pin 22, connects described lower adjustment cap 21, retaining ring 23 and packing element core pipe 11;
Slips cover 25, is socketed in outside described retaining ring 23;
Slips 27, is socketed between described the second central tube 20 and described slips cover 25;
Upper by cap 28, within being socketed in described slips cover 25, and be positioned under described slips 27;
Lower cone 29, is socketed in described slips 27 and upper by between cap 28;
Fishing sleeve 30, within being socketed in described the second central tube 20;
Lower contact 33, is socketed in outside described fishing sleeve 30, and is socketed in outside described the second central tube 20;
Lower to cap 31, be socketed in outside described lower cone 29 and lower contact 33;
Separate blocking 32, be arranged in lower contact 33, and by cap 31, surrounded down by described.
Further, the described Y445 packer from testing envelope also comprises: upper adjustment cap 10, is socketed in the outside, top of described packing element core pipe 11, and connects described hydraulic cylinder 3;
Connecting pin, is arranged between adjustment cap 10 and described connector 9;
Ball seat 18, is tubulose, within being socketed in described the first central tube 4, and is positioned at the lower end of described the first central tube 4.
Further, the described Y445 packer from testing envelope also comprises: upper cone 29, be socketed in outside described the second central tube 20, and between described retaining ring 23 and described the second central tube 20, form cavity, described upper cone 29 is arranged in described cavity.
Further, the described Y445 packer from testing envelope also comprises: helmet 2, is socketed in outside described top connection 1, and is positioned on described hydraulic cylinder 3.
Further, the described Y445 packer from testing envelope also comprises: sliding nail 7, is connected between described connector 9 and described the first central tube 4.
Further, the described Y445 packer from testing envelope also comprises: be arranged on the sealing ring between described piston 8 and described connector 9.
Further, described top connection 1 is connected to the below of the oil pipe in pit shaft.
Further, the internal diameter of described the second central tube 20 is more than or equal to the external diameter of described the first central tube 4.
Further, from the Y445 packer of testing envelope, also comprise: be socketed in the spacing pawl spring 6 outside described top connection 1 and described connector 9, within described spacing pawl spring 6 is positioned at described hydraulic cylinder 3, and between described spacing pawl spring 6 and described top connection 1, be provided with the first shear pin 5.
The utility model adopts and tests excluder ring, makes it have from testing envelope function; From testing envelope process: after packer setting, from oil pipe, suppress, pressure through by central tube 4, central tube 20, packing element core pipe 11, test the pressure channel that excluder ring 19 forms and be delivered to oil jacket annular space.If packer sets completely, packing element and sleeve pipe form seal cavity, so annular pressure is stable, without pressure release situation.Otherwise packer setting is incomplete.The utility model is considered from testing envelope function when design, by the packing element of original Y445 packer is become to four packing elements by testing excluder ring with fixing spacer ring packing, and test envelope passage by testing excluder ring formation, thereby change each packing element compression distance, the fluid cylinder stroke of Y445 packer, improvement packer construction, neither impact sets effect, again can be after setting good mineralization pressure passage, thereby reach from the function of testing envelope.And then, traditional deblocking piece is improved to solution blocking, and revises fishing sleeve, make upper while carrying fishing sleeve upper cone have up power, reduce deblocking difficulty; To give up structural modification for the pawl spring form of giving up, prevent from giving up midway.
Accompanying drawing explanation
Fig. 1 is first's sectional structure schematic diagram of the Y445 packer of certainly testing envelope of the utility model embodiment;
Fig. 2 is the second portion sectional structure schematic diagram of the Y445 packer of certainly testing envelope of the utility model embodiment; Wherein, owing to certainly testing the Y445 packer of envelope, be elongated member, first is separated by AA line with second portion;
Fig. 3 is the third part sectional structure schematic diagram of the Y445 packer of certainly testing envelope of the utility model embodiment; Wherein, owing to certainly testing the Y445 packer of envelope, be elongated member, first is separated by BB line with second portion.
Drawing reference numeral explanation:
The spacing pawl spring of top connection 2. helmet 3. fluid cylinder 4. first central tube 5. first shear pin 6. 7. sliding nail 8. piston 9. connector 10. adjustment cap 11. packing element core pipes 12. give up pawl spring 13. first packing elements 1 14. fixedly spacer ring 15. second packing element 16. spacing ring 17. baffle ring 18. ball seats 19. test on 21. times adjustment caps of excluder ring 20. second central tube, 22. second shear pin 23. retaining ring 24. upper cone 25. slips cover 26. pin 27. slips 28. by cap 29. lower cone 30. fishing sleeve 31. times by cap 32. solution blocking 33. lower contacts 130. the 3rd packing element 150. the 4th packing elements
The specific embodiment
For technical characterictic of the present utility model, object and effect being had more clearly, understand, now contrast accompanying drawing explanation the utility model.
Fig. 1 to Fig. 3 shows a Y445 packer of certainly testing envelope of the utility model embodiment, because this is elongated member from the Y445 packer of testing envelope, for clear this each several part structure in the Y445 packer of testing envelope that represents, the utility model represents with 3 figure that respectively this is from a part of testing the Y445 packer of envelope.
As shown in Figure 1 to Figure 3, this Y445 packer of certainly testing envelope comprises:
The first central tube 4 is oil, gas passage;
Be socketed in the top connection 1 of described the first central tube 4 upper ends, for being connected with the oil pipe of top;
Hydraulic cylinder 3, is socketed in outside described top connection 1;
Connector 9, is socketed in outside described the first central tube 4 and is positioned under top connection 1;
Piston 8, is annular, be socketed between described hydraulic cylinder 3 and described connector 9, and described piston 8 connects described hydraulic cylinder 3;
The pawl spring 12 of giving up, is socketed in outside described top connection 1, and described in the give up upper end of pawl spring 12 be socketed in outside described connector 9; Give up the structure example of pawl spring as for the locating ring of elastic card claw, for location, is the pawl spring form of giving up of the present utility model by original structural modification of giving up, and can effectively prevent from giving up midway;
Packing element core pipe 11, outside the pawl spring 12 of giving up described in being socketed in;
Upper adjustment cap 10, is socketed in the outside, top of described packing element core pipe 11, and connects described hydraulic cylinder 3;
The first packing element 13, the second packing element 15, the 3rd packing element 130 and the 4th packing element 150 are socketed in outside described packing element core pipe 11, and abut against successively under adjustment cap 10;
Ball seat 18, is tubulose, within being socketed in described the first central tube 4, and is positioned at the lower end of described the first central tube 4;
Test excluder ring 19, be socketed in outside described packing element core pipe 11, and between the second packing element 15, the 3rd packing element 130;
Two spaced fixedly spacer rings 14, are socketed in outside described packing element core pipe 11, and lay respectively between the first packing element 13 and the second packing element 15, and between the 3rd packing element 130 and the 4th packing element 150;
Test excluder ring and test sealing of hole than many one of common spacer ring (fixedly spacer ring 14), to form, test envelope passage.From oil pipe, suppress, pressure through central tube 4, packing element core pipe 11, test excluder ring 19 and be delivered to oil jacket annular space.If packer sets completely, packing element and sleeve pipe form seal cavity, so annular pressure is stable.Otherwise packer setting is incomplete.
The utility model is considered from testing envelope function when design, by the packing element of original Y445 packer is become to four packing elements by testing excluder ring with fixing spacer ring packing, and test envelope passage by testing excluder ring formation, thereby change each packing element compression distance, the fluid cylinder stroke of Y445 packer, improvement packer construction, neither impact sets effect, again can be after setting good mineralization pressure passage, thereby reach from the function of testing envelope.
The second central tube 20, is socketed between described ball seat 18 and described packing element core pipe 11; Further, the internal diameter of described the second central tube 20 is more than or equal to the external diameter of described the first central tube 4, so that the second central tube has the division of labor different from the first central tube 4;
Lower adjustment cap 21, is connected on described the second central tube 20 by thread bush, and is positioned under described the 4th packing element 150;
Retaining ring 23, is socketed between described lower adjustment cap 21 and packing element core pipe 11;
The second shear pin 22, connects described lower adjustment cap 21, retaining ring 23 and packing element core pipe 11;
Slips cover 25, is socketed in outside described retaining ring 23;
Slips 27, is socketed between described the second central tube 20 and described slips cover 25;
Upper by cap 28, within being socketed in described slips cover 25, and be positioned under described slips 27;
Lower cone 29, is socketed in described slips 27 and upper by between cap 28;
Fishing sleeve 30, within being socketed in described the second central tube 20;
Lower contact 33, is socketed in outside described fishing sleeve 30, and is socketed in outside described the second central tube 20;
Lower to cap 31, be socketed in outside described lower cone 29 and lower contact 33;
Separate blocking 32, be arranged in lower contact 33, and by cap 31, surrounded down by described.The utility model is improved to solution blocking by traditional deblocking piece, makes the easier deblocking of Y445 packer.
Further, the described Y445 packer from testing envelope also comprises: upper cone 29 is for example conical ring, is socketed in outside described the second central tube 20, between described retaining ring 23 and described the second central tube 20, forms cavity, and described upper cone 29 is arranged in described cavity.
Further, the described Y445 packer from testing envelope also comprises: helmet 2, is socketed in outside described top connection 1, and is positioned on described hydraulic cylinder 3.
Further, the described Y445 packer from testing envelope also comprises: sliding nail 7, is connected between described connector 9 and described the first central tube 4.
Further, the described Y445 packer from testing envelope also comprises: be arranged on the sealing ring between described piston 8 and described connector 9.
Further, the described Y445 packer from testing envelope also comprises: be arranged on the connecting pin between upper adjustment cap 10 and described connector 9.
Further, from the Y445 packer of testing envelope, also comprise: be socketed in the spacing pawl spring 6 outside described top connection 1 and described connector 9, within described spacing pawl spring 6 is positioned at described hydraulic cylinder 3, and between described spacing pawl spring 6 and described top connection 1, be provided with the first shear pin 5.
Further, described top connection 1 is connected to the below of the oil pipe in pit shaft.
Y445 packer from testing envelope of the present utility model, its course of work is as follows:
Set process: when pressure reaches certain value in oil pipe, promotion piston 8, adjustment cap 10, packing element core pipe 11, upper cone 24, the second shear pins 22 are cut off, slips anchoring.Each packing element is compressed.Retaining ring 23 is pushed locking, packer setting.
From testing envelope process: from oil pipe, suppress, pressure through central tube 4, packing element core pipe 11, test excluder ring 19 and be delivered to oil jacket annular space.If packer sets completely, packing element and sleeve pipe form seal cavity, so annular pressure is stable.Otherwise packer setting is incomplete.Otherwise packer setting is incomplete.
The process of giving up: pitching is suppressed, and the first shear pin 5 is cut off, the pawl spring 6 of giving up is thrown off with top connection 1, hydraulic cylinder 3, loses position-limiting action, above carries oil pipe, and packer has been given up.If still can not complete and give up, forward oil pipe, give up pawl spring 12 and the second central tube 20 are thrown off, and also can complete and give up.
Deblocking process: under drag for anchor, with fishing sleeve 30 locking, above carry oil pipe, separate blocking 32 and deviate from, lose position-limiting action.Lower cone 29 is descending, and slips 27, the first packing element 13, the second packing element 15 are regained, removing seal for packer.By deblocking piece is improved to solution blocking, make upper while carrying fishing sleeve upper cone have up power, reduce deblocking difficulty.
Packer of the present utility model has relatively easily deblocking, the rate of giving up is little midway, and can, directly from testing envelope, can directly from ground observation, set effect after setting.
The foregoing is only the schematic specific embodiment of the utility model, not in order to limit scope of the present utility model.For each ingredient of the present utility model can mutually combine under the condition of not conflicting; any those skilled in the art; do not depart from equivalent variations and the modification of having done under the prerequisite of design of the present utility model and principle, all should belong to the scope of the utility model protection.
Claims (10)
1. from a Y445 packer of testing envelope, it is characterized in that, the described Y445 packer from testing envelope comprises:
The first central tube (4);
Be socketed in the top connection (1) of described the first central tube (4) upper end;
Hydraulic cylinder (3), is socketed in outside described top connection (1);
Connector (9), is socketed in outside described the first central tube (4) and is positioned under top connection (1);
Piston (8), is annular, be socketed between described hydraulic cylinder (3) and described connector (9), and described piston (8) connects described hydraulic cylinder (3);
The pawl spring (12) of giving up, is socketed in outside described top connection (1), and described in the give up upper end of pawl spring (12) be socketed in outside described connector (9);
Packing element core pipe (11), outside the pawl spring (12) of giving up described in being socketed in;
The first packing element (13), the second packing element (15), the 3rd packing element (130) and the 4th packing element (150) are socketed in outside described packing element core pipe (11), and abut against successively under adjustment cap (10);
Test excluder ring (19), be socketed in outside described packing element core pipe (11), and be positioned between the second packing element (15) and the 3rd packing element (130);
Two spaced fixedly spacer rings (14), be socketed in outside described packing element core pipe (11), and lay respectively between the first packing element (13) and the second packing element (15), and be positioned between the 3rd packing element (130) and the 4th packing element (150).
2. the Y445 packer from testing envelope as claimed in claim 1, is characterized in that, the described Y445 packer from testing envelope also comprises: the second central tube (20), is socketed between described ball seat (18) and described packing element core pipe (11);
Lower adjustment cap (21), is socketed in described the second central tube (20) upper, and is positioned under described the 4th packing element (150);
Retaining ring (23), is socketed between described lower adjustment cap (21) and packing element core pipe (11);
The second shear pin (22), connects described lower adjustment cap (21), retaining ring (23) and packing element core pipe (11);
Slips cover (25), is socketed in outside described retaining ring (23);
Slips (27), is socketed between described the second central tube (20) and described slips cover (25);
Upper by cap (28), within being socketed in described slips cover (25), and be positioned under described slips (27);
Lower cone (29), is socketed in described slips (27) and upper by between cap (28);
Fishing sleeve (30), within being socketed in described the second central tube (20);
Lower contact (33), is socketed in outside described fishing sleeve (30), and is socketed in outside described the second central tube (20);
Lower to cap (31), be socketed in outside described lower cone (29) and lower contact (33);
Separate blocking (32), be arranged in lower contact (33), and by cap (31), surrounded down by described.
3. the Y445 packer from testing envelope as claimed in claim 1, is characterized in that, the described Y445 packer from testing envelope also comprises:
Upper adjustment cap (10), is socketed in the outside, top of described packing element core pipe (11), and connects described hydraulic cylinder (3);
Connecting pin, is arranged between adjustment cap (10) and described connector (9);
Ball seat (18), is tubulose, within being socketed in described the first central tube (4), and is positioned at the lower end of described the first central tube (4).
4. as claimed in claim 2 from testing the Y445 packer of envelope, it is characterized in that, the described Y445 packer from testing envelope also comprises: upper cone (29), be socketed in outside described the second central tube (20), between described retaining ring (23) and described the second central tube (20), form cavity, described upper cone (29) is arranged in described cavity.
5. the Y445 packer from testing envelope as claimed in claim 1, is characterized in that, the described Y445 packer from testing envelope also comprises: helmet (2), is socketed in outside described top connection (1), and is positioned on described hydraulic cylinder (3).
6. the Y445 packer from testing envelope as claimed in claim 1, is characterized in that, the described Y445 packer from testing envelope also comprises: sliding nail (7), is connected between described connector (9) and described the first central tube (4).
7. the Y445 packer from testing envelope as claimed in claim 1, is characterized in that, the described Y445 packer from testing envelope also comprises: be arranged on the sealing ring between described piston (8) and described connector (9).
8. the Y445 packer from testing envelope as claimed in claim 1, is characterized in that, described top connection (1) is connected to the below of the oil pipe in pit shaft.
9. the Y445 packer from testing envelope as claimed in claim 2, is characterized in that, the internal diameter of described the second central tube (20) is more than or equal to the external diameter of described the first central tube (4).
10. as claimed in claim 1 from testing the Y445 packer of envelope, it is characterized in that, the described Y445 packer from testing envelope also comprises: be socketed in the spacing pawl spring (6) outside described top connection (1) and described connector (9), within described spacing pawl spring (6) is positioned at described hydraulic cylinder (3), and be provided with the first shear pin (5) between described spacing pawl spring (6) and described top connection (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420300927.2U CN203961889U (en) | 2014-06-06 | 2014-06-06 | Self-seal-checking Y445 packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420300927.2U CN203961889U (en) | 2014-06-06 | 2014-06-06 | Self-seal-checking Y445 packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203961889U true CN203961889U (en) | 2014-11-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420300927.2U Expired - Fee Related CN203961889U (en) | 2014-06-06 | 2014-06-06 | Self-seal-checking Y445 packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203961889U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414199A (en) * | 2017-12-29 | 2018-08-17 | 中国海洋石油集团有限公司 | Visualize the performance testing device of packing element |
| CN115680578A (en) * | 2021-07-21 | 2023-02-03 | 中国石油天然气股份有限公司 | Large-drift-diameter water plugging and production primary tubular column at two ends of sealed intermediate production and method |
-
2014
- 2014-06-06 CN CN201420300927.2U patent/CN203961889U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414199A (en) * | 2017-12-29 | 2018-08-17 | 中国海洋石油集团有限公司 | Visualize the performance testing device of packing element |
| CN108414199B (en) * | 2017-12-29 | 2020-05-22 | 中国海洋石油集团有限公司 | Performance testing device for visual packer rubber cylinder |
| CN115680578A (en) * | 2021-07-21 | 2023-02-03 | 中国石油天然气股份有限公司 | Large-drift-diameter water plugging and production primary tubular column at two ends of sealed intermediate production and method |
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| 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: 20141126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |