CN202990951U - Through-ball grading setting fracturing packer - Google Patents
Through-ball grading setting fracturing packer Download PDFInfo
- Publication number
- CN202990951U CN202990951U CN 201220731573 CN201220731573U CN202990951U CN 202990951 U CN202990951 U CN 202990951U CN 201220731573 CN201220731573 CN 201220731573 CN 201220731573 U CN201220731573 U CN 201220731573U CN 202990951 U CN202990951 U CN 202990951U
- Authority
- CN
- China
- Prior art keywords
- setting
- packer
- protection rings
- central tube
- fracturing
- 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 - Lifetime
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model belongs to a down-hole operation tool for the petroleum industry and particularly relates to a through-ball grading setting fracturing packer. A slit-shaped setting channel B is arranged on a central tube (2), and a vulcanized rubber sleeve (6) is arranged on the outer portion of the setting channel B. Two groups of even numbers of inner protection rings (4) and outer protection rings (5) are sleeved in a press ring (3) in a staggering mode, and a radial gap A is left between the outer protection rings (5) and the press ring (3). Front and rear ends of the inner protection rings (4) and the outer protection rings (5) are fixed through shear pins (7) to be sleeved at the upper end and the lower end of the rubber sleeve (6) respectively. The upper portion of the press ring (3) is fixed through an upper joint (1), and the lower portion is fixed through a back nut (10). A sectioning sliding sleeve (8) is accommodated in a cavity of the central tube (2) to seal the setting channel B and fixed with the central tube (2) through a setting shear pin (9). By means of the through-ball grading setting fracturing packer, the grading setting and separate layer fracturing technology can be achieved, repeated down-hole setting times of the packer are reduced, and the reliability of the packer and the fracturing construction safety are improved; and the inner protection rings and the outer protection rings which are sleeved in a staggering mode are arranged, so that the pressure-resistant capacity is high, the unsetting recycling is thorough, and the packer does not clamp wells.
Description
Technical field
The utility model belongs to the underground operation tool of petroleum industry, particularly a kind of ball formula setting fracturing packer step by step of crossing.
Background technology
At present, the tubing string that is connected into by inflatable packer is suppressed simultaneously setting when multiple fracturing, has increased a packer repeat block number, and then affect the packer packing separating performance, and can not judge when multiple fracturing whether the centre packer is setting.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned technical deficiency, provides a kind of and can improve the ball formula of the crossing setting fracturing packer step by step that packer stability can be tested again envelope.
the technical scheme that the utility model technical solution problem adopts is: mistake ball formula setting fracturing packer step by step comprises: top connection, central tube, packing element, back of the body cap, be characterized in being provided with the setting passage of seam shape on central tube, the outside sulfuration of setting passage packing element, front end is divided in two groups of even number protection rings and external guard ring is staggered is sleeved in pressure ring, leave radial clearance between external guard ring and pressure ring, be set in the upper of packing element after the front and back end of interior protection ring and external guard ring is fixing with shear pin, lower two ends, the top pressure ring is to fix with top connection, the pressure ring bottom is fixed with back of the body cap, the inner chamber dress distinguish sliding sleeve of central tube, seal setting passage and fix with setting shear pin and central tube.
The beneficial effects of the utility model are: mistake ball formula setting fracturing packer step by step can realize the setting separate stratum fracfturing technique of classification; reduced packer at a down-hole repeat block number; improved the reliability of packer and to the safety of pressing crack construction; be provided with the inside and outside protection ring of staggered suit; make voltage endurance capability strong; deblocking reclaims thoroughly, not Ka Jing.
Description of drawings
Illustrate with embodiment below in conjunction with accompanying drawing.
Fig. 1 was ball formula setting fracturing packer structure sectional view step by step.
In figure, the 1-top connection; The 2-central tube; The 3-pressure ring; The 4-internal protective cover; The 5-outer jointing jacket; The 6-packing element; The 7-shear pin; 8-distinguish sliding sleeve; The setting shear pin of 9-; 10-carries on the back cap; The A-radial clearance; The setting passage of B-.
The specific embodiment
Embodiment, with reference to accompanying drawing 1, cross the ball formula step by step setting fracturing packer be threaded central tube 2 upper ends and with the sealing ring sealing of top connection 1, the middle part is provided with the setting channel B of seam shape on central tube 2, the outside sulfuration of setting channel B is packing element 6 fixedly.Front end is divided in two groups of even number protection rings 4 and external guard ring 5 is staggered is sleeved in pressure ring 3, leaves radial clearance A between external guard ring 5 and pressure ring 3.The front and back end of interior protection ring 4 and external guard ring 5 is set in the two ends up and down of packing element 6 with after shear pin 7 is together with pressure ring 3 is fixing.Pressure ring 3 use top connections above packing element 6 are fixed, and the following pressure ring 3 use back of the body caps 10 of packing element 6 are fixed.At central tube 2 inner chamber dress distinguish sliding sleeves 8, setting channel B is sealed, central tube 2 is fixedly connected with the distinguish sliding sleeve 8 setting shear pins 9 of use.
Cross the ball formula step by step the operating principle of setting fracturing packer be: support the use with multistage Valve with sliding bush and hydraulic anchor in tubing string, every grade of Valve with sliding bush is furnished with the steel ball of coupling, steel ball seals during by the distinguish sliding sleeve 8 in upper setting fracturing packer step by step, after cutting off setting shear pin 9, after distinguish sliding sleeve 8 goes downwards to the sealing section of stopping ring cavity, internal diameter becomes large, steel ball by after continue to go downwards to subordinate's Valve with sliding bush top, seal subordinate's sliding sleeve.
Claims (1)
1. cross ball formula setting fracturing packer step by step for one kind, comprise top connection (1), central tube (2), packing element (6), back of the body cap (10), it is characterized in that being provided with the setting channel B of seam shape on central tube (2), the outside sulfuration of setting channel B packing element (6), front end is divided in two groups of even number protection rings (4) and external guard ring (5) and interlocks and be sleeved in pressure ring (3), leave radial clearance A between external guard ring (5) and pressure ring (3), be set in the upper of packing element (6) after the front and back end of interior protection ring (4) and external guard ring (5) is fixing with shear pin (7), lower two ends, top pressure ring (3) is fixing with top connection (1), the pressure ring bottom is fixing with back of the body cap (10), the inner chamber dress distinguish sliding sleeve (8) of central tube (2), seal setting channel B and fixing with setting shear pin (9) and central tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220731573 CN202990951U (en) | 2012-12-27 | 2012-12-27 | Through-ball grading setting fracturing packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220731573 CN202990951U (en) | 2012-12-27 | 2012-12-27 | Through-ball grading setting fracturing packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202990951U true CN202990951U (en) | 2013-06-12 |
Family
ID=48562142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220731573 Expired - Lifetime CN202990951U (en) | 2012-12-27 | 2012-12-27 | Through-ball grading setting fracturing packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202990951U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306658A (en) * | 2013-07-01 | 2013-09-18 | 中国石油化工股份有限公司 | Stage-by-stage setting multi-stage segmental fracturing string and use method thereof |
| CN105507846A (en) * | 2016-01-22 | 2016-04-20 | 东营市兆鑫工贸有限责任公司 | Expandable fracture packer for preventing midway setting |
-
2012
- 2012-12-27 CN CN 201220731573 patent/CN202990951U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306658A (en) * | 2013-07-01 | 2013-09-18 | 中国石油化工股份有限公司 | Stage-by-stage setting multi-stage segmental fracturing string and use method thereof |
| CN103306658B (en) * | 2013-07-01 | 2016-01-20 | 中国石油化工股份有限公司 | Stepped setting multistage subsection fracturing string and using method thereof |
| CN105507846A (en) * | 2016-01-22 | 2016-04-20 | 东营市兆鑫工贸有限责任公司 | Expandable fracture packer for preventing midway setting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102071900B (en) | Self-constant pressure expanding open hole packer | |
| CN204252931U (en) | Water injection packer | |
| CN202990951U (en) | Through-ball grading setting fracturing packer | |
| CN203308428U (en) | Open hole well segmented pressure fracture packer | |
| CN203685115U (en) | Rubber tube protruding prevention ring for permanent packer | |
| CN201661267U (en) | Plugging packer | |
| CN205349288U (en) | Mechanical packer seals up in two groups | |
| CN103742099A (en) | Perforation, fracturing, sealing and separating device | |
| CN202903426U (en) | Test equipment for rubber drum of packer | |
| CN104389547B (en) | The extruding packing element of a kind of built-in metal component and processing technique thereof | |
| CN204899850U (en) | Novel compound bridging plug of ball cage | |
| CN102944370B (en) | Pressure device for airtightness detection of casing and manufacturing method thereof | |
| CN202325386U (en) | Stepped setting fracture packer | |
| CN205078223U (en) | Highly deviated well packer | |
| CN204899838U (en) | Compound bridging plug of ball cage | |
| CN202273639U (en) | High pressure resistant hydraulic packer | |
| CN201092845Y (en) | Hydraulic pressure, double back-off hand type dragable bridge plug | |
| CN107780876A (en) | Horizontal well track type rubber sleeve packer and packing method | |
| CN103835675A (en) | Long-rubber-sleeve compression type open hole packer | |
| CN201334890Y (en) | Blanking plug | |
| CN204782834U (en) | Novel continuous outside of tubes slips connector | |
| CN104563956A (en) | Two-way anchored well plugging device | |
| CN106703739A (en) | Balanced type double-piston hydraulic-control compression four-rubber-cylinder packer | |
| CN203476282U (en) | Staged fracturing packer of horizontal well | |
| CN106703740A (en) | Hydraulic control and inside and outside biaxial compression packer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210728 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. 16 East China Street, hi tech Industrial Park, Liaoning, Fuxin Patentee before: FUXIN CHIYU PETROLEUM MACHINERY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |
|
| CX01 | Expiry of patent term |