CN203685108U - Grading packer drillable ball seat - Google Patents
Grading packer drillable ball seat Download PDFInfo
- Publication number
- CN203685108U CN203685108U CN201320854442.3U CN201320854442U CN203685108U CN 203685108 U CN203685108 U CN 203685108U CN 201320854442 U CN201320854442 U CN 201320854442U CN 203685108 U CN203685108 U CN 203685108U
- Authority
- CN
- China
- Prior art keywords
- resilient sleeve
- ball seat
- elastic sleeve
- top connection
- central 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
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- Earth Drilling (AREA)
Abstract
The utility model belongs to production devices in the petroleum industry and particularly relates to a grading packer drillable ball seat. An upper connector (10) of a packer of each grade is connected with an elastic sleeve (17) through threads, an elastic sleeve long groove (16) is formed in the elastic sleeve (17), an elastic sleeve boss (17-1) is formed between the elastic sleeve (17) and a center pipe (2), a support block (15) is arranged above the elastic sleeve long groove (16), a ball seat nut (13) is connected between the support block (15) and the upper connector (10), a center pipe (2) is installed on the outside of the upper connector (10) and the elastic sleeve (17), the upper portion of the center pipe (2) is connected with an upper press ring (1) through inner threads, the outside of the center pipe (2) is connected with a lower press ring (4) through a boss, a rubber barrel (3) is installed between the upper press ring (1) and the lower press ring (4), the elastic sleeve (17) is connected with a lower conical body (9) through a release shear pin (18) under a lock seat (6), and a slip (8) is installed between an upper conical body (7) and the lower conical body (9). The ball seat is simple in process and favorable for cement quality detection after well cementation.
Description
Technical field
The utility model belongs to the petroleum industry plant-scale equipment, particularly the setting drillable ball seat of a kind of classification.
Background technology
At present, well cementation completion in Petroleum Production both at home and abroad, pressure break ball seat used is all that design is in fracturing valve inside, together go into the well with fracturing valve, the sliding sleeve endoporus of fracturing valve, by top to bottom undergauge step by step, causes pressure break hop count restricted, due to undergauge, cannot realize the test to cement quality after cementing the well, the quality examination result after impact well cementation.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned technical deficiency, provides a kind of convenient well cementation rear quality examination, makes setting technique rationally easy, the setting drillable ball seat of safe and reliable classification.
The technical scheme that the utility model technical solution problem adopts is: the setting drillable ball seat of classification comprises top connection, upper press ring, lower pressure ring, central tube, packing element, upper cone, lower cone, slips, the top connection that is characterized in every grade of packer is all threaded with resilient sleeve, in resilient sleeve, be provided with resilient sleeve elongated slot, in resilient sleeve and between central tube, be provided with resilient sleeve boss, back-up block is equipped with in resilient sleeve elongated slot top, between back-up block and top connection, connect ball seat nut, between ball seat nut and top connection, fix with setting shear pin, in resilient sleeve, the in-built piston of back-up block and top connection, ball is housed above piston, at top connection and the exterior central tube of resilient sleeve, central tube top internal thread connects upper press ring, outside connects lower pressure ring with boss, between upper press ring and lower pressure ring, fill packing element, lower pressure ring external screw thread connects upper cone, on upper cone inner convex platform, fill lock, lock and central tube below are fixing with lock, below lock, connect resilient sleeve and lower cone with the shear pin of giving up, between upper cone and lower cone, be installed watt.
The beneficial effects of the utility model are: the setting drillable ball seat of classification is to provide the ball seat that a kind of rear tubing string of cementing the well is multistagely gone into the well, classification is setting, classification is put aside, make to give up and once trip out, when pressure break, classification pitching realizes classification pressure break again, after completing, pressure break can remove ball seat by brill, full-bore completion is produced, make technique simple, be conducive to the detection of cement quality after cementing the well.
Accompanying drawing explanation
Illustrate with embodiment below in conjunction with accompanying drawing.
Fig. 1 is the setting drillable ball socket structure of classification figure.
In figure, 1-upper press ring; 2-central tube; 3-packing element; Pressure ring under 4-; 5-lock; 6-lock; 7-upper cone; 8-slips; 9-lower cone; 10-top connection; 11-ball; 12-piston; 13-ball seat nut; The setting shear pin of 14-; 15-back-up block; 16-resilient sleeve elongated slot; 17-resilient sleeve; 17-1-resilient sleeve boss; The 18-shear pin of giving up.
The specific embodiment
Embodiment, with reference to accompanying drawing 1, the setting drillable ball seat of classification is be all threaded with resilient sleeve 17 and seal with sealing ring in the top connection 10 of every grade of packer, in resilient sleeve 17, be provided with resilient sleeve elongated slot 16, between resilient sleeve 17 upper center tubes 2, be provided with resilient sleeve boss 17-1, back-up block 15 is housed above resilient sleeve elongated slot 16, between back-up block 15 and top connection 10, connects ball seat nut 13, fixing with setting shear pin 14 between ball seat nut 13 and top connection 10.At the in-built piston 12 of resilient sleeve 17, back-up block 15 and top connection 10 and with sealing ring sealing, ball 11 is housed above piston 12, central tube 2 use sealing rings are housed outside top connection 10 and resilient sleeve 17 and seal.Above central tube 2, internal thread connects upper press ring 1, and outside connects lower pressure ring 4 with boss, between upper press ring 1 and lower pressure ring 4, fills packing element 3.Lower pressure ring 4 external screw threads connect upper cones 7, on upper cone 7 inner convex platforms, lock 6 are housed, and lock 6 is fixing with lock 5 with central tube 2 belows, below lock 6, connects resilient sleeve 17 and lower cone 9 with the shear pin 18 of giving up, and are installed watts 8 between upper cone 7 and lower cone 9.
The course of work of the setting drillable ball seat of classification is: one time the multistage ball seat of tubing string is gone into the well, will subordinate ball seat send into subordinate's fracturing valve precalculated position, in the rear pipe of ball 11 of dosing cover, suppress, piston 12 and the setting shear pin 14 of ball seat nut 13 shear pin are rear descending, open piston 12 and resilient sleeve boss 17-1 is embedded in to the support of central tube 2, support to central tube 2 with back-up block 15, descending with upper press ring 1, support upper cone 7 by slips 8 grapplings, again by swollen packing element 3 envelope, lock 5 simultaneously and complete locking with central tube 2, after setting completing, upper lifting pipe post, cut off the shear pin 18 of giving up, top connection 10, ball 11, piston 12, ball seat nut 13, back-up block 15 and resilient sleeve 17 with setting after ball seat give up, carry again to upper level assigned address, carrying out the setting of upper level ball seat gives up, after whole seats are complete, the part of giving up trips out.When pressure break, first drop into pressure break ball corresponding to subordinate's ball seat, sit on central tube 2, in pipe, suppress, open target zone can switching regulator well cementation, staged fracturing valve pressure break passage, surface layer position under shutoff, carry out pressure break, the pressure break ball that drops into successively again upper level, carries out upper level pressure break, until pressure break completes.
Claims (1)
1. the setting drillable ball seat of classification, comprise top connection (10), upper press ring (1), lower pressure ring (4), central tube (2), packing element (3), upper cone (7), lower cone (9), slips (8), the top connection (10) that it is characterized in that every grade of packer is all threaded with resilient sleeve (17), in resilient sleeve (17), be provided with resilient sleeve elongated slot (16), resilient sleeve (17) above and between central tube (2) is provided with resilient sleeve boss (17-1), back-up block (15) is equipped with in resilient sleeve elongated slot (16) top, between back-up block (15) and top connection (10), connect ball seat nut (13), fixing with setting shear pin (14) between ball seat nut (13) and top connection (10), in resilient sleeve (17), back-up block (15) and the in-built piston of top connection (10) (12), in the top of piston (12), ball (11) is housed, at top connection (10) and the exterior central tube of resilient sleeve (17) (2), central tube (2) top internal thread connects upper press ring (1), outside connects lower pressure ring (4) with boss, between upper press ring (1) and lower pressure ring (4), fill packing element (3), lower pressure ring (4) external screw thread connects upper cone (7), on upper cone (7) inner convex platform, fill lock (6), lock (6) is fixing with lock (5) with central tube (2) below, connect resilient sleeve (17) and lower cone (9) in lock (6) below with the shear pin of giving up (18), between upper cone (7) and lower cone (9), be installed watt (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320854442.3U CN203685108U (en) | 2013-12-23 | 2013-12-23 | Grading packer drillable ball seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320854442.3U CN203685108U (en) | 2013-12-23 | 2013-12-23 | Grading packer drillable ball seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685108U true CN203685108U (en) | 2014-07-02 |
Family
ID=51007027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320854442.3U Expired - Fee Related CN203685108U (en) | 2013-12-23 | 2013-12-23 | Grading packer drillable ball seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203685108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179474A (en) * | 2014-08-22 | 2014-12-03 | 安东石油技术（集团）有限公司 | Well cementing ball seat |
-
2013
- 2013-12-23 CN CN201320854442.3U patent/CN203685108U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179474A (en) * | 2014-08-22 | 2014-12-03 | 安东石油技术（集团）有限公司 | Well cementing ball seat |
| CN104179474B (en) * | 2014-08-22 | 2016-07-06 | 安东石油技术（集团）有限公司 | Well cementation ball seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210802 Address after: 123000 No. 1, Huadong street, Fuxin high tech Industrial Development Zone, Fuxin City, Liaoning Province Patentee after: Fuxin Petroleum Tools Factory Address before: 123000 No. 1, Huadong street, high tech Zone, Fuxin City, Liaoning Province Patentee before: FUXIN CHIYU PETROLEUM MACHINERY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20211223 |