CN201152160Y - Horizontal well fracturing hydraulic seat packer - Google Patents
Horizontal well fracturing hydraulic seat packer Download PDFInfo
- Publication number
- CN201152160Y CN201152160Y CNU2007200158576U CN200720015857U CN201152160Y CN 201152160 Y CN201152160 Y CN 201152160Y CN U2007200158576 U CNU2007200158576 U CN U2007200158576U CN 200720015857 U CN200720015857 U CN 200720015857U CN 201152160 Y CN201152160 Y CN 201152160Y
- Authority
- CN
- China
- Prior art keywords
- packer
- slips
- anchor
- axle
- lower contact
- 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
Links
- 238000012856 packing Methods 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims description 12
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract 2
- 206010010214 Compression fracture Diseases 0.000 abstract 1
- 238000004873 anchoring Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 9
- 239000007788 liquid Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model provides the hydraulic pressure seat packing packer of a horizontal well compression fracture, which consists of a mandrel, a fixing bolt, a slips offsetting spring, an anchoring slips, a slips treadle bar, an anchor inner coquette, a parker rubber, a spacing collar, a seat packing piston, a fluid cylinder body, a safety pin and a lower contact. An upper pressure transmitting hole and a lower pressure transmitting hole are used by the packer and sleeved on the mandrel by an anchor; then the parker rubber, the spacing collar and the fluid cylinder body are serially sleeved on the anchor; at last, the lower contact is sleeved on the lower top of the mandrel and fixed by the safety pin. The packer has simple structure, reliable working, low manufacturing cost, modularized design, and fast field maintenance can be carried out; the packer has a safety anti-locking device which is good for production and application and solves the problem of well abandoning caused by packer being locked but unable to be maintained.
Description
Technical field:
The utility model relates to a kind of hydraulic base sealed packer of the downhole tool that uses, particularly a kind of fractured horizontal well in the field produces operation.
Background technology:
The pressure break packer of oil field use at present, complex structure, inconvenient maintenance can not be keeped in repair at the scene fast.For range base well construction far away, need the many covers of band packer.For processing, because complex structure, processing cost is higher.
Summary of the invention:
The purpose of this utility model is to provide a kind of hydraulic base sealed packer of fractured horizontal well.Simplify the structure of packer, make easy to process; Realize the packer assembly modularization, it is easy to maintenance that packer is used; Carry out the Safety Design of packer self, prevent to result in greater loss after being blocked because of packer; Make packer can carry out field maintenance, needn't retract the base, can not be affected for more remote well construction progress like this.
The purpose of this utility model is to realize like this, it is by axle, the anchor urceolus, set bolt, the slips back-moving spring, the grappling slips, the slips press strip, the anchor inner core, packing element, spacer ring, seat envelope piston, hydraulic cylinder, safety pin, lower contact is formed, last pressure transmission hole and following pressure transmission hole are arranged on the axle, by the anchor urceolus, set bolt, the slips back-moving spring, the grappling slips, the slips press strip, the anchor inner core is formed anchor, be enclosed within on the axle, then with packing element, spacer ring, seat envelope piston, hydraulic cylinder is enclosed within on the axle successively, at last lower contact is enclosed within axle bottom, and fixes with safety pin.
Operating principle: when under the hydraulic base sealed packer after desired depth, the beginning pressure break.When squeezing into prepad fluid, owing in the lower contact throat tubular construction is arranged, cause the pressure of the interior pressure of pipe greater than casing annulus, then the liquid in the pipe enters in the anchor by the sieve aperture of pressure transmission hole, anchor inner core on the axle, it is protruding to promote the grappling slips, and bite internal surface of sleeve pipe, reach the purpose that prevents that packer from moving up; And the liquid in the pipe moves up by a pressure transmission hole promotion seat envelope piston under the axle, and the compression packer packing element expands packing element, is close to casing wall, reaches sealing function.After packer seals, just can carry out pressing crack construction.After pressing crack construction is finished, when the pressure in the tubing string is consistent with the pressure in the sleeve pipe, grappling slips on the anchor is under the effect of slips back-moving spring, get back to original position, and seat envelope piston also returns to original position under the effect of packing element, like this, just can directly trip out packer.
The utility model is owing to have last pressure transmission hole and following pressure transmission hole on the employing axle, be enclosed within on the axle by anchor, then packing element, spacer ring, seat envelope piston, hydraulic cylinder are enclosed within on the axle successively, at last lower contact are enclosed within axle bottom, and fix with safety pin.Simple in structure, reliable operation, the processing and fabricating cost is low; Modularized design can be carried out scene maintenance fast; Packer self has the anti-jamming device of safety, helps produce using, and prevents because of after packer is stuck, and can't handle, and causes oil well to scrap problem.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment:
The utility model is provided by following examples, is illustrated below in conjunction with accompanying drawing.
As shown in the figure, the utility model is by axle 1, anchor urceolus 2, set bolt 3, slips back-moving spring 4, grappling slips 5, slips press strip 6, anchor inner core 8, packing element 9, spacer ring 10, seat envelope piston 11, hydraulic cylinder 12, safety pin 14, lower contact 15 is formed, last pressure transmission hole 7 and following pressure transmission hole 13 are arranged on the axle 1, by anchor urceolus 2, set bolt 3, slips back-moving spring 4, grappling slips 5, slips press strip 6, anchor inner core 8 is formed anchor, be enclosed within on the axle 1, then with packing element 9, spacer ring 10, seat envelope piston 11, hydraulic cylinder 12 is enclosed within on the axle 1 successively, at last lower contact 15 is enclosed within axle 1 bottom, and fixing with safety pin 14.
When under the hydraulic base sealed packer after desired depth, the beginning pressure break.When squeezing into prepad fluid, owing in the lower contact throat tubular construction is arranged, cause the pressure of the interior pressure of pipe greater than casing annulus, then the liquid in the pipe enters in the anchor by the sieve aperture of pressure transmission hole, anchor inner core on the axle, it is protruding to promote the grappling slips, and bite internal surface of sleeve pipe, reach the purpose that prevents that packer from moving up; And the liquid in the pipe moves up by a pressure transmission hole promotion seat envelope piston under the axle, and the compression packer packing element expands packing element, is close to casing wall, reaches sealing function.After packer seals, just can carry out pressing crack construction.After pressing crack construction is finished, when the pressure in the tubing string is consistent with the pressure in the sleeve pipe, grappling slips on the anchor is under the effect of slips back-moving spring, get back to original position, and seat envelope piston also returns to original position under the effect of packing element, like this, just can directly trip out packer.
During maintenance, safety pin can be taken out, and each parts is taken off successively, parts that more renew and seal are installed the back then successively and just can be gone into the well.
When packer is stuck in the down-hole, can throw a steel ball.When steel ball arrives the throat tubular construction of lower contact of packer, lower passage is blocked, pressurization in the pipe at this moment can all be cut off safety pin, the tubing string on axle and top can be tripped out like this, salvages then.Can prevent from like this to cause the unfreezing difficulty, even the problem that causes oil well to scrap takes place.
Claims (1)
1, a kind of hydraulic base sealed packer of fractured horizontal well, it is by axle (1), anchor urceolus (2), set bolt (3), slips back-moving spring (4), grappling slips (5), slips press strip (6), anchor inner core (8), packing element (9), spacer ring (10), seat envelope piston (11), hydraulic cylinder (12), safety pin (14), lower contact (15) is formed, it is characterized in that: last pressure transmission hole (7) and following pressure transmission hole (13) are arranged on the axle (1), by anchor urceolus (2), set bolt (3), slips back-moving spring (4), grappling slips (5), slips press strip (6), anchor inner core (8) is formed anchor, be enclosed within on the axle (1), then with packing element (9), spacer ring (10), seat envelope piston (11), hydraulic cylinder (12) is enclosed within on the axle (1) successively, at last lower contact (15) is enclosed within axle (1) bottom, and fixing with safety pin (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200158576U CN201152160Y (en) | 2007-11-14 | 2007-11-14 | Horizontal well fracturing hydraulic seat packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200158576U CN201152160Y (en) | 2007-11-14 | 2007-11-14 | Horizontal well fracturing hydraulic seat packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201152160Y true CN201152160Y (en) | 2008-11-19 |
Family
ID=40127839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200158576U Expired - Fee Related CN201152160Y (en) | 2007-11-14 | 2007-11-14 | Horizontal well fracturing hydraulic seat packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201152160Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879321A (en) * | 2012-10-22 | 2013-01-16 | 西南石油大学 | Method for simulating high-temperature and high-pressure down-hole packer rubber corrosion test |
| CN107299829A (en) * | 2016-04-15 | 2017-10-27 | 贵州航天凯山石油仪器有限公司 | A kind of underground grappling method and device of oil pipe capping tools |
| CN110410033A (en) * | 2019-08-28 | 2019-11-05 | 库尔勒中油能源技术服务有限公司 | Dilute packer is mixed in a kind of HOR-GB gas injection |
| CN110998060A (en) * | 2017-06-28 | 2020-04-10 | 斯伦贝谢技术有限公司 | Packing seal and method of use |
| CN111364956A (en) * | 2020-03-18 | 2020-07-03 | 中国海洋石油集团有限公司 | Sand control injection allocation integrated packer |
| CN113803556A (en) * | 2020-06-11 | 2021-12-17 | 中国石油化工股份有限公司 | Pipeline intelligent plugging device and sealing method |
-
2007
- 2007-11-14 CN CNU2007200158576U patent/CN201152160Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879321A (en) * | 2012-10-22 | 2013-01-16 | 西南石油大学 | Method for simulating high-temperature and high-pressure down-hole packer rubber corrosion test |
| CN102879321B (en) * | 2012-10-22 | 2014-07-16 | 西南石油大学 | Method for simulating high-temperature and high-pressure down-hole packer rubber corrosion test |
| CN107299829A (en) * | 2016-04-15 | 2017-10-27 | 贵州航天凯山石油仪器有限公司 | A kind of underground grappling method and device of oil pipe capping tools |
| CN107299829B (en) * | 2016-04-15 | 2023-07-18 | 贵州航天凯山石油仪器有限公司 | Underground anchoring method and device of oil pipe plugging tool |
| CN110998060A (en) * | 2017-06-28 | 2020-04-10 | 斯伦贝谢技术有限公司 | Packing seal and method of use |
| CN110410033A (en) * | 2019-08-28 | 2019-11-05 | 库尔勒中油能源技术服务有限公司 | Dilute packer is mixed in a kind of HOR-GB gas injection |
| CN110410033B (en) * | 2019-08-28 | 2024-03-22 | 库尔勒中油能源技术服务有限公司 | HOR-GB gas injection and dilution packer |
| CN111364956A (en) * | 2020-03-18 | 2020-07-03 | 中国海洋石油集团有限公司 | Sand control injection allocation integrated packer |
| CN113803556A (en) * | 2020-06-11 | 2021-12-17 | 中国石油化工股份有限公司 | Pipeline intelligent plugging device and sealing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081119 Termination date: 20091214 |