CN203716918U - Horizontal-well staged fracturing packer - Google Patents
Horizontal-well staged fracturing packer Download PDFInfo
- Publication number
- CN203716918U CN203716918U CN201320851762.3U CN201320851762U CN203716918U CN 203716918 U CN203716918 U CN 203716918U CN 201320851762 U CN201320851762 U CN 201320851762U CN 203716918 U CN203716918 U CN 203716918U
- Authority
- CN
- China
- Prior art keywords
- bearing ring
- ring
- sliding sleeve
- shear pin
- axial
- 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
- 239000004576 sand Substances 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 238000012856 packing Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 2
- 238000007664 blowing Methods 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
Abstract
The utility model belongs to petroleum borehole operation tools and particularly relates to a horizontal-well staged fracturing packer. An inner pressure-bearing ring (12) and an outer pressure-bearing ring (11) are correspondingly arranged at upper and lower ends between a rubber sleeve (13) and a press ring (10), the inner pressure-bearing ring (12) is provided with multiple inner pressure-bearing ring axial seams (12-1), the outer pressure-bearing ring (11) is provided with multiple outer pressure-bearing ring axial seams (11-1), the outer surfaces of the upper and lower ends of the press ring (10) are respectively provided with centering rings (9) freely rotating, the outer surfaces of the centering rings (9) are provided with multiple axial grooves (9-1), the upper end of a sand blower body is provided with a sand blowing opening (8-1), the lower part of a sliding sleeve (6) is provided with multiple sliding sleeve axial seams (6-1), the lower end of the sliding sleeve (6) is sleeved with a shaping ring (7), threads at the lower end of an upper connector (1) are provided with multiple upper connector axial seams (1-1), and a locking sealing sleeve (4) is arranged inside the upper connector (1) and is fixed by a shear pin II (3). The centering effect is improved after the packer is downed and sealed, tubular column releasing caused by rotation torque can be effectively prevented, and a ball passing function can be realized as the multiple axial seams are added in the lower end of the sliding sleeve.
Description
Technical field
The utility model belongs to oil underground operation tool, particularly a kind of staged fracturing of horizontal well packer.
Background technology
At present; the total following several method of pressure break in horizontal well cover; respectively that two envelope drag fracturings, single envelope drag perforating and fracturing, speed is bored bridging plug pressure break, fixed tubular column staged fracturing; what in above-mentioned four kinds of methods, fracturing technology cost was minimum, most effective is fixed tubular column staged fracturing; but this fracturing process exists the immature problem of technology at present; be exactly that sand card tubing string phenomenon often can occur while tripping out tubing string after pressure break; cause and trip out tubing string difficulty, therefore affected the extensive popularization of this fracturing technology method.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned technical deficiency, provides a kind of simple in structure, can avoid sand card tubing string phenomenon, can trip out smoothly the staged fracturing of horizontal well packer of tubing string.
The technical scheme that the utility model technical solution problem adopts is: staged fracturing of horizontal well packer comprises top connection, shear pin one, shear pin two, shear pin three, packing element, back of the body cap, central tube, setting ring, be characterized in corresponding interior bearing ring and the outer bearing ring of being equipped with in upper and lower two ends between packing element and pressure ring, interior bearing ring is provided with many interior bearing ring axial slit, outer bearing ring is provided with many outer bearing ring axial slit, between interior bearing ring axial slit and outer bearing ring axial slit, be crisscross arranged, on pressure ring, the centering ring rotating freely is equipped with respectively in the outside at lower two ends, centering ring external surface is provided with many axial grooves, sandblast body upper end is provided with sand jet outlet, sandblast body is in-built to be had sliding sleeve and fixes with shear pin three, sliding sleeve lower end is provided with many sliding sleeve axial slit, sliding sleeve lower end suit setting ring, sandblast body upper internal threaded connects top connection fixing with shear pin one, screw thread place, top connection lower end is provided with many top connection axial grooves, locking sealing shroud fixing with shear pin two is equipped with in top connection inside.
The beneficial effects of the utility model are: staged fracturing of horizontal well packer can form closed protective to packing element owing to increasing interior bearing ring and outer bearing ring, has improved packing element voltage endurance capability.Increased centering ring packer is played a protective role, improved the effect placed in the middle after packer set, can effectively prevent that turning moment from causing tubing string to thread off, sliding sleeve lower end increases many axial slit, can realize ball function.Top connection screw thread place is provided with a plurality of top connection axial grooves, and while being subject to axial tension, the diameter of thread can diminish, and the inefficacy that is threaded, cuts off shear pin, and realization is given up.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, with embodiment, illustrate.
Fig. 1 is staged fracturing of horizontal well packer construction and sectional view.
In figure, 1-top connection; 1-1-top connection axial groove; 2-shear pin one; 3-shear pin two; 4-locks sealing shroud; 5-shear pin three; 6-sliding sleeve; 6-1-sliding sleeve axial slit; The 7-ring that formalizes; 8-sandblast body; 8-1-sand jet outlet; 9-centering ring; 9-1-centering ring axial groove; 10-pressure ring; The outer bearing ring of 11-; The outer bearing ring axial slit of 11-1-; Bearing ring in 12-; Bearing ring axial slit in 12-1-; 13-packing element; 14-central tube; The setting passage of 14-1-sand control; 15-carries on the back cap.
The specific embodiment
Embodiment, with reference to accompanying drawing 1, the top connection 1 of staged fracturing of horizontal well packer sandblast body 8 tops fixing with shear pin 1 that are threaded, top connection 1 screw thread place, lower end is provided with many top connection axial groove 1-1, and locking sealing shroud 4 fixing with shear pin 23 is equipped with in top connection 1 inside.Sandblast body 8 is provided with sand jet outlet 8-1, and sliding sleeve 6 fixing with shear pin 35 is housed in sandblast body 8, and sliding sleeve 6 lower ends are provided with many sliding sleeve axial slit 6-1, and setting ring 7 is sleeved on sliding sleeve 6 lower ends.Sandblast body 8 lower ends that are threaded, central tube 14 upper ends, central tube 14 is provided with the setting passage 14-1 of sand control, is set with pressure ring 10 and packing element 13 on central tube 14, corresponding interior bearing ring 12 and the outer bearing ring 11 of being equipped with of upper/lower terminal between packing element 13 and pressure ring 10.Interior bearing ring 12 is provided with many interior bearing ring axial slit 12-1, and outer bearing ring 11 is provided with many outer bearing ring axial slit 11-1, between interior bearing ring axial slit 12-1 and outer bearing ring axial slit 11-1, is crisscross arranged.The outside of pressure ring 10 upper/lower terminals is set with the centering ring 9 that can rotate freely, and centering ring 9 external surfaces are provided with many axial groove 9-1, and the central tube 14 lower ends back of the body cap 15 pairs of pressure rings 10 that are threaded are spacing.
The course of work of staged fracturing of horizontal well packer is: staged fracturing of horizontal well packer is to be used in combination while using, between packer, with oil pipe, connect, topmost packer connects with oil pipe to well head, subordinate packer hypomere connects baffle-type ball-and-seat, after fracturing string is gone into the well and is put in place, carry out staged fracturing, after staged fracturing completes, enforcement trips out fracturing string, gives up and salvages.
Claims (1)
1. a staged fracturing of horizontal well packer, comprise top connection (1), shear pin one (2), shear pin two (3), shear pin three (5), packing element (13), back of the body cap (15), central tube (14), setting ring (7), it is characterized in that corresponding interior bearing ring (12) and the outer bearing ring (11) of being equipped with in upper and lower two ends between packing element (13) and pressure ring (10), interior bearing ring (12) is provided with many interior bearing ring axial slit (12-1), outer bearing ring (11) is provided with many outer bearing ring axial slit (11-1), between interior bearing ring axial slit (12-1) and outer bearing ring axial slit (11-1), be crisscross arranged, on pressure ring (10), the centering ring (9) rotating freely is equipped with respectively in the outside at lower two ends, centering ring (9) external surface is provided with many axial grooves (9-1), sandblast body (8) upper end is provided with sand jet outlet (8-1), sliding sleeve (6) fixing with shear pin three (5) is housed in sandblast body (8), sliding sleeve (6) lower end is provided with many sliding sleeve axial slit (6-1), sliding sleeve (6) lower end suit setting ring (7), sandblast body (8) upper internal threaded connects top connection (1) fixing with shear pin one (2), screw thread place, top connection (1) lower end is provided with many top connection axial grooves (1-1), locking sealing shroud (4) fixing with shear pin two (3) is equipped with in top connection (1) inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320851762.3U CN203716918U (en) | 2013-12-23 | 2013-12-23 | Horizontal-well staged fracturing packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320851762.3U CN203716918U (en) | 2013-12-23 | 2013-12-23 | Horizontal-well staged fracturing packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203716918U true CN203716918U (en) | 2014-07-16 |
Family
ID=51156083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320851762.3U Expired - Lifetime CN203716918U (en) | 2013-12-23 | 2013-12-23 | Horizontal-well staged fracturing packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203716918U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989318A (en) * | 2015-05-22 | 2015-10-21 | 燕山大学 | Sand draining packer |
| CN107002476A (en) * | 2014-11-17 | 2017-08-01 | 万加德石油工具及服务有限责任公司 | The region that temperature is enabled separates packer device |
| CN112513411A (en) * | 2018-07-18 | 2021-03-16 | 沙特阿拉伯石油公司 | Underground fracturing method |
-
2013
- 2013-12-23 CN CN201320851762.3U patent/CN203716918U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107002476A (en) * | 2014-11-17 | 2017-08-01 | 万加德石油工具及服务有限责任公司 | The region that temperature is enabled separates packer device |
| US10472921B2 (en) | 2014-11-17 | 2019-11-12 | Vanguard Oil Tools & Services Llc | Temperature activated zonal isolation packer device |
| CN107002476B (en) * | 2014-11-17 | 2020-09-29 | 万加德石油工具及服务有限责任公司 | Temperature activated zone separation packer apparatus |
| CN104989318A (en) * | 2015-05-22 | 2015-10-21 | 燕山大学 | Sand draining packer |
| CN112513411A (en) * | 2018-07-18 | 2021-03-16 | 沙特阿拉伯石油公司 | Underground fracturing method |
| CN112513411B (en) * | 2018-07-18 | 2023-12-29 | 沙特阿拉伯石油公司 | Underground fracturing method |
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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. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |