CN205063891U - Deep well packer - Google Patents
Deep well packer Download PDFInfo
- Publication number
- CN205063891U CN205063891U CN201520822270.0U CN201520822270U CN205063891U CN 205063891 U CN205063891 U CN 205063891U CN 201520822270 U CN201520822270 U CN 201520822270U CN 205063891 U CN205063891 U CN 205063891U
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- Prior art keywords
- slips
- friction
- stop collar
- friction plate
- assembly
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Abstract
The utility model discloses a deep well packer, including the center tube, locate the center tube both ends the top connection, become to detain and connect and detain packing element assembly, slips assembly, the friction switching -over assembly that connects the direction and set gradually along the center tube outer wall from the top connection to becoming, the slips assembly includes slip spider, slips, slips stop collar, locking spring, oversheath, lock tube, steel ball, the slip spider is equipped with that T type groove and slips one side forms slide steering, the slips opposite side is connected with the slips stop collar, the oversheath setting slips stop collar periphery and the slips stop collar between form the installation space of locking spring, lock tube, steel ball embedding screens stop collar and stick out both ends and center tube, lock tube contact respectively. The utility model discloses work is nimble reliable, and the slips occlusal surface adopts inlays carbide, makes the slips can grab the sleeve pipe of biting into any steel level easily, overcomes yin kawa and sleeve pipe interlock and does not firmly make packer setting difficulty or deblocking midway.
Description
Technical field
The utility model relates to petroleum equipment technical field, is specifically related to a kind of deep-well packer.
Background technology
Packer is mainly used in oil gas separate stratum fracfturing transformation, oil field dispensing and the underground work such as other high temperature, High Pressure Difference technique, use procedure is carried on passing through, rotate forward, then transfer tubing string ballast sets, direct upper lifting pipe post deblocking, there is the advantages such as structure is simple, easy to operate, exist following not enough: set reliable not, well more deeply commutates and sets just more difficult, and midway easily occurs deblocking simultaneously; Due to long-term in subsurface environment operation, critical piece burn into aging speed is fast, and service time is short.
Summary of the invention
Goal of the invention: for the deficiencies in the prior art, the utility model provides a kind of deep-well packer, sets, deblocking dependable performance, stable.
Technical scheme: deep-well packer described in the utility model, comprise central tube, be located at the top connection at central tube two ends, variable buckle lower contact and centrally pipe outer wall set gradually from top connection to variable buckle lower contact direction packing element assembly, slips assembly, friction reversing assembly; It is characterized in that: described slips assembly comprises slip spider, slips, slips stop collar, locking cover, oversheath, lock tube, steel ball; Slip spider is provided with that T-slot forms slide-and-guide with slips side, slips opposite side is connected with slips stop collar, oversheath be arranged on slips stop collar periphery and and form the installing space locking spring, lock tube between slips stop collar, steel ball embeds screens stop collar and outstanding two ends contact respectively with described central tube, lock tube.
Improve technique scheme further, anchor tooth, spring that described anchor mechanism comprises three anchor flukes and coordinates with each anchor fluke, anchor fluke to be fixed in described anchor fluke groove by sealing ring and just the groove of two fixing described springs is provided with to the position of described pressing plate groove at middle part, both sides fix described anchor tooth, spring one end is fixed on described groove, the other end is connected with the pressing plate be fixed in described pressing plate groove.Each anchor mechanism arranges three anchor flukes, and each anchor fluke arranges the groove of two fixing springs, ensures reliability during work.
Further, described slips is provided with six card teeth.
Further, described slips adopts carbide alloy to make.
Further, described packing element assembly comprising two packing elements, being located at the spacer ring between two packing elements and the glue tube base for installing packing element; Described packing element adopts modified hydrogenated acrylonitrile-butadiene rubber to make.
Further, described friction reversing assembly comprises friction plate, friction commutation body, cuff under cuff, friction blade spring, reversing pin, friction plate on friction plate; Friction plate one end is arranged friction commutation body and is fixed by cuff on friction plate, the other end arranges reversing pin, replaces and overlap and coordinate pin to fix by cuff under described friction plate, under friction plate, cuff is fixed by pin and the lower body that commutates of rubbing, the installing space formed between friction commutation body and described central tube; Friction blade spring is arranged between described central tube and friction plate, friction blade spring two ends and friction plate inner groovy offsets, offset with described central tube in the middle part of the blade that rubs spring.
Further, described friction plate adopts carbide alloy to make.
Beneficial effect: compared with prior art, advantage of the present utility model: the utility model design T-slot screens seat guiding coordinates slips stop collar spacing, the locking of locking spring, lock tube realizes the telescopic slide of six card tooth slips structures, work flexibility and reliability, slips occlusal surface adopts tungsten carbide button, make slips can grab the sleeve pipe biting any grade of steel easily, overcome Yin Kawa be engaged with sleeve pipe loosely make packer setting difficulty or midway deblocking; Two packing elements are set, increase packing position and packing area, improve sealing performance and packing success rate, packing element is that the sulfuration in 72 hours of modified hydrogenated acrylonitrile-butadiene rubber is made, have the feature of high temperature resistant, anti-aging, anti-High Pressure Difference, easily deblocking, set compression solution for a long time and be honored as a queen, recovery performance is good; Friction plate adopts tungsten carbide button, prevents friction plate excessive wear in underground work process, sets, deblocking is more reliable, it is that high-tension folds spring that friction plate holds out against spring, at down-hole high temperature, under the long term of corrosive medium, performance is unaffected, and the instrument of being convenient to sets not deblocking.The utility model scientific structure design, is easy to production and processing, has good functional performance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below by accompanying drawing, technical solutions of the utility model are described in detail.
embodiment 1:deep-well packer as shown in Figure 1, comprises cuff 15, friction plate 16, friction blade spring 17, transposition cover 18, reversing pin 19, pin 20, friction plate 16 times cuffs 21, variable buckle lower contact 22 on top connection 1, central tube 2, packing element 3, spacer ring 4, glue tube base 5, slip spider 6, alloy slips 7, slips stop collar 8, pin 20, locking spring 10, oversheath 11, lock tube 12, steel ball 13, friction commutation body 14, friction plate 16; Central tube 2 two ends arrange top connection 1, variable buckle lower contact 22 respectively; Centrally pipe 2 outer tube wall sets gradually packing element 3, glue tube base 5, slip spider 6, alloy slips 7, slips stop collar 8, pin 20, oversheath 11, friction reversing assembly from top connection 1 to variable buckle lower contact 22; Packing element 3 is arranged on glue tube base 5, and packing element 3 is two, centre is undertaken separately by spacer ring 4; Slip spider 6 is provided with T-slot and supplies alloy slips 7 telescopic slide and carry out guide and limit by slips stop collar 8, alloy slips 7 is six latch 7 structures, occlusal surface tungsten carbide button pressure, make alloy slips 7 can bite the sleeve pipe of any steel pole easily, overcome Yin Kawa 7 be engaged with sleeve pipe loosely make packer setting difficulty or midway deblocking; Oversheath 11 is fixedly connected with the slips stop collar 8 inside it by fixing pin 9, and steel ball 13 embeds slips stop collar 8, and the space formed between oversheath 11 with slips stop collar 8 is provided with and locks spring 10, lock spring 10 coordinates with lock tube 12; The friction blade spring 17 that friction reversing assembly comprises friction plate 16, is located at cuff 15 on the friction plate of friction plate 16 one end, is located at the lower cuff 21 of friction plate 16 other end, offset with friction plate 16, friction plate is arranged friction commutation body 14 inside cuff 15, transposition cover 18 and transpositing pin are set inside cuff 21 under friction plate and are fixed by pin 20.
The utility model overall length: 1852mm, maximum outside diameter :≤Φ 146mm, latus rectum: Φ 60mm, operating temperature: 150 DEG C, be suitable for sleeve pipe: Φ 177.8mm sleeve pipe (wall thickness 10.36mm-11.51mm), set pressure: 80-120KN, bear maximum pull :≤800KN, connect button-type: 27/8 ＂ UPTBG.
Set principle: rotate tubing string when transferring, friction plate relies on friction blade spring and central tube friction, and slip spider struts slips and sleeve pipe is fixed, and compresses packing element, under to precalculated position, carry (rotating forward) tubing string after transfer and set,
Deblocking principle: upper lifting pipe post, slips exits slip spider, gets final product deblocking.
Use procedure should be noted: the oil well of lower packet must carry out drifting on request, ensures that sleeve pipe is unimpeded; Packer two ends must wear thread protector before entering well, mustn't land; Instrument ensures before going into the well that reversing pin is in the short groove of track pipe, proposes (rotating forward) commutation on timely when sitting card halfway as run into; The oil pipe of going into the well, instrument must ensure to clean, and working fluid is clean; Forbid when removing the tubing string of band packer that violent rising is put suddenly with frequently up and down.
As mentioned above, although represented with reference to specific preferred embodiment and described the utility model, it shall not be construed as the restriction to the utility model self.Under the spirit and scope prerequisite of the present utility model not departing from claims definition, various change can be made in the form and details to it.
Claims (6)
1. a deep-well packer, comprises central tube, be located at the top connection at central tube two ends, variable buckle lower contact and centrally pipe outer wall set gradually from top connection to variable buckle lower contact direction packing element assembly, slips assembly, friction reversing assembly; It is characterized in that: described slips assembly comprises slip spider, slips, slips stop collar, locking spring, oversheath, lock tube, steel ball; Slip spider is provided with that T-slot forms slide-and-guide with slips side, slips opposite side is connected with slips stop collar, oversheath be arranged on slips stop collar periphery and and form the installing space locking spring, lock tube between slips stop collar, steel ball embeds screens stop collar and outstanding two ends contact respectively with described central tube, lock tube.
2. deep-well packer according to claim 1, is characterized in that: described slips is provided with six card teeth.
3. deep-well packer according to claim 1 and 2, is characterized in that: described slips adopts carbide alloy to make.
4. deep-well packer according to claim 1, is characterized in that: described packing element assembly comprising two packing elements, being located at the spacer ring between two packing elements and the glue tube base for installing packing element; Described packing element adopts modified hydrogenated acrylonitrile-butadiene rubber to make.
5. deep-well packer according to claim 1, is characterized in that: described friction reversing assembly comprises friction plate, friction commutation body, cuff under cuff, friction blade spring, reversing pin, friction plate on friction plate; Friction plate one end is arranged friction commutation body and is fixed by cuff on friction plate, the other end arranges reversing pin, replaces and overlap and coordinate pin to fix by cuff under described friction plate, under friction plate, cuff is fixed by pin and the lower body that commutates of rubbing, the installing space formed between friction commutation body and described central tube; Friction blade spring is arranged between described central tube and friction plate, friction blade spring two ends and friction plate inner groovy offsets, offset with described central tube in the middle part of the blade that rubs spring.
6. deep-well packer according to claim 5, is characterized in that: described friction plate adopts carbide alloy to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520822270.0U CN205063891U (en) | 2015-10-22 | 2015-10-22 | Deep well packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520822270.0U CN205063891U (en) | 2015-10-22 | 2015-10-22 | Deep well packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205063891U true CN205063891U (en) | 2016-03-02 |
Family
ID=55390459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520822270.0U Expired - Fee Related CN205063891U (en) | 2015-10-22 | 2015-10-22 | Deep well packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205063891U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761535A (en) * | 2016-11-24 | 2017-05-31 | 中国石油大学(北京) | A kind of packer |
| CN110685625A (en) * | 2019-11-01 | 2020-01-14 | 辽宁新华仪器有限公司 | Hydraulic anti-jack and anti-drop tool |
| CN112012692A (en) * | 2020-09-30 | 2020-12-01 | 大庆华油石油科技开发有限公司 | High-reliability soluble bridge plug |
| CN114922585A (en) * | 2022-03-14 | 2022-08-19 | 中国石油天然气股份有限公司 | Packer, application of packer and related system |
-
2015
- 2015-10-22 CN CN201520822270.0U patent/CN205063891U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761535A (en) * | 2016-11-24 | 2017-05-31 | 中国石油大学(北京) | A kind of packer |
| CN110685625A (en) * | 2019-11-01 | 2020-01-14 | 辽宁新华仪器有限公司 | Hydraulic anti-jack and anti-drop tool |
| CN112012692A (en) * | 2020-09-30 | 2020-12-01 | 大庆华油石油科技开发有限公司 | High-reliability soluble bridge plug |
| CN112012692B (en) * | 2020-09-30 | 2021-05-25 | 大庆华油石油科技开发有限公司 | High-reliability soluble bridge plug |
| CN114922585A (en) * | 2022-03-14 | 2022-08-19 | 中国石油天然气股份有限公司 | Packer, application of packer and related system |
| CN114922585B (en) * | 2022-03-14 | 2024-04-30 | 中国石油天然气股份有限公司 | Packer, application of packer and related system |
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Legal Events
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20211022 |