CN205000943U - But anchor tile modus ponens casing packer - Google Patents
But anchor tile modus ponens casing packer Download PDFInfo
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- CN205000943U CN205000943U CN201520633380.2U CN201520633380U CN205000943U CN 205000943 U CN205000943 U CN 205000943U CN 201520633380 U CN201520633380 U CN 201520633380U CN 205000943 U CN205000943 U CN 205000943U
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- anchor
- central tube
- watt
- casing packer
- sealing mechanism
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Abstract
The utility model discloses a but anchor tile modus ponens casing packer, it includes outer center tube outside inner center pipe of top connection, inner center pipe, cover, set gradually that the seat on the center tube seals locking mechanism, sealing mechanism, its characterized in that outside: it is still gone up top anchoring mechanism, is prevented moving down anchoring mechanism and deblocking mechanism including preventing, prevents going up top anchoring establishment of institution and is sitting the top of sealing locking mechanism, prevents moving down anchoring mechanism, deblocking mechanism sets gradually the below at sealing mechanism. The utility model discloses a prevent going up top anchoring mechanism and make packer sealing mechanism be in the not state of wriggling with preventing moving down anchoring mechanism, through adopting the messenger of the deblocking mechanism packer again can the deblocking, have improved when guaranteeing the sealing reliability the utility model discloses a practicality.
Description
Technical field
The utility model relates to a kind of anchor watt retrievable casing packer.
Background technology
Along with the continuous probing of high angle hole, ultradeep well, the particularly probing of a collection of 5000 ~ 7000m deep-well such as similar Tarim Oilfield, northwest office, to sealing performance, the grappling performance of packer with can take out performance and have higher requirement.Generally in this kind of measure construction, packer adopts Bidirectional anchoring packer or permanent packer to carry out packing substantially, and be characterized in that grappling is firm, tubing string is not easily wriggled, but existing problems are bidirectionally anchorings sometimes easily causes deblocking difficulty, or needs to bore grinding envelope.
Utility model content
Technical problem to be solved in the utility model is that the deficiency existed for above-mentioned prior art provides one stably can carry out work at underground high-efficient by safeguard measure tubing string, and deblocking is easy to anchor watt retrievable casing packer again simultaneously.
The technical scheme that the utility model adopts is: a kind of anchor watt retrievable casing packer, it comprises top connection, inner central tube, the exterior central tube be enclosed within outside inner central tube, is successively set on setting retaining mechanism, sealing mechanism, it is characterized in that on exterior central tube: it also comprise anti-on push up anchor mechanism, the anti-anchor mechanism that moves down conciliates sealing mechanism, anti-upper top anchor mechanism is arranged on the top setting retaining mechanism, prevents moving down anchor mechanism, separating the below that sealing mechanism is successively set on sealing mechanism.
By technique scheme, axial pressure transmission passage is provided with in the anchor body pushing up anchor mechanism on anti-, in the overcoat setting retaining mechanism, be provided with pressure transmission hole be connected with the plunger shaft setting piston setting retaining mechanism, pressure transmission passage is communicated with by communicating pipe with pressure transmission hole.
By technique scheme, described anti-upper top anchor mechanism comprises anchor body, on anchor body circumferentially direction be arranged at intervals with multiple on push up anchor fluke, and by spring, pressing plate and securing member, anchor fluke to be fixed on anchor body.
By technique scheme, prevent that moving down anchor mechanism comprises cone, slips, slip spider, cone is fixedly connected with the glue tube base of sealing mechanism, and the wedge shape position of cone lower end is inserted in the slot of the taper sheath of slips upper end, and slip spider is sleeved on exterior central tube.
By technique scheme, described solution sealing mechanism comprises slip carrier and lock dog, slip carrier is fixed on exterior central tube and inner central tube by deblocking pin, described lock dog is installed between exterior central tube and inner central tube in draw-in groove, and the below that inner central tube is positioned at lock dog is provided with the groove for discharging lock dog.
By technique scheme, the described retaining mechanism that sets is that two-stage sets, it comprise overcoat, on set piston, lower overcoat, under set piston, lower overcoat is fixed on the glue tube base of sealing mechanism by setting pin, form low pressure position-limit mechanism, can prevent instrument to go into the well premature setting in process, the upper end of glue tube base is arranged on down the step place set on piston simultaneously, under set piston below be provided with lock ring for locking with the lock tooth that arranges on exterior central tube.
By technique scheme, lock ring and under set between piston and be provided with spring.
By technique scheme, described sealing mechanism comprises and is sleeved on packing element mandrel on exterior central tube, and packing element mandrel sets gradually glue tube base, protection bowl, end packing element, middle packing element, lower rubber cylinder, lower rubber cylinder seat.
During work, when strata pressure or operation pressure are greater than liquid column hydrostatic pressure on packer, anti-upper top anchor fluke just struts, and play on preventing and move effect, when strata pressure or operation pressure are less than liquid column hydrostatic pressure on packer at that time, anchor fluke the automatic recovery, does not increase deblocking load; Adopt anti-upper top demand during this anti-upper top anchor mechanism guarantee construction, do not increase deblocking load again
Beneficial effect acquired by the utility model is: 1, the utility model employing is anti-above pushes up anchor mechanism and prevents that moving down anchor mechanism makes packer sealing mechanism be in state of not wriggling, to ensure while sealing reliability, by adopting solution sealing mechanism to make packer again can deblocking, to improve practicality of the present utility model.2, the utility model considers the protection problem of packing element; adopt the anti-retaining mechanism that can move back; the slips structure of wedge shape slot the way of restraint, has stronger packing stability and grappling reliability, can provide stronger packing effect for various measures such as water filling, water blockoff, acidifying, pressure break, tests.When carrying deblocking 3, first by after packer sealing superstructure loosening, up just beginning of cone reclaims slips by force.This substep unfreezing mode ensures that the smooth and easy of deblocking carries out; 4, high angle hole, directional well, hp-ht well or be not easy to mechanical-set well, adopts this instrument can hydraulic setting, and sealing is reliable, has the feature of permanent packing, and has recuperability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1, top connection, 2, anchor body, 3, 5, 6, 8, 14, 15, 18, 19, 21, 23, 26, 31, O type circle, 4, inner central tube, 7, sunk screw, 9, outer spring, 10, inner spring, 11, anchor fluke, 12, pressing plate, 13, communicating pipe, 16, exterior central tube, 17, upper overcoat, 20, on set piston, 22, lower overcoat, 24, under set piston, 25, upper glue tube base, 27, spring, 28, lock ring, 29, set shear pin, 30, packing element mandrel, 32, protection bowl, 33, end packing element, 34, spacer ring, 35, middle packing element, 36, lower rubber cylinder seat, 37, cone, 38, slips, 39, lock washer, 40, nut, 41, 42, boring fillister head screw, 43, slip spider, 44, deblocking shear pin, 45, lock dog, 46, slip carrier.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, present embodiments provide a kind of anchor watt retrievable casing packer, it comprise top connection 1, inner central tube 4, the exterior central tube 16 be enclosed within outside inner central tube, anti-on push up anchor mechanism, set retaining mechanism, sealing mechanism, anti-ly move down anchor mechanism, separate sealing mechanism.
Described anti-upper top anchor mechanism comprises anchor body 2, on anchor body 2, circumferentially direction is arranged at intervals with on six and pushes up anchor fluke 11, and by inside and outside spring 9,10, anchor fluke 11 is fixed on anchor body 2 by pressing plate 12 and soket head cap screw 7, in anchor body 2, be provided with axial pressure transmission passage, this axial pressure transmission passage is connected with top connection endoporus.
The described retaining mechanism that sets is that two-stage sets, it comprises overcoat 17, on set piston 20, lower overcoat 22, under set piston 24, upper overcoat 17 is threaded connection with the upper end of exterior central tube, upper overcoat 17 is provided with pressure transmission hole corresponding with pressure transmission passage, both were communicated with by communicating pipe 13, communicating pipe 13 is connected with the plunger shaft above setting piston 20, the upper end of lower overcoat 22 and the lower end of upper overcoat 17 are threaded connection, lower end is fixed on the upper glue tube base 25 of sealing mechanism by setting shear pin 29, form low pressure position-limit mechanism, can prevent instrument to go into the well premature setting in process, under set piston 24 below be provided with lock ring 28 and make packer be in the state of setting for locking with the lock tooth that arranges on exterior central tube.Lock ring 28 and under set between piston 24 and be provided with spring 27, prevent lock ring 28 resilience.
Described sealing mechanism comprises and is sleeved on packing element mandrel 30 on exterior central tube 16; packing element mandrel 30 sets gradually glue tube base 25, protection bowl 32, end packing element 33, spacer ring 34, middle packing element 35, lower rubber cylinder, lower rubber cylinder seat 36; the upper end of upper glue tube base 25 be arranged on down set step place on piston 24 and by screw thread with under set piston 24 and be connected, lower rubber cylinder seat is fixed on packing element mandrel 30 by trip bolt.
Prevent that moving down anchor mechanism comprises cone 37, slips 38, slip spider 43, cone 37 is connected with lower rubber cylinder seat 36 by external screw thread, the upper end of cone 37 is threaded with lower rubber cylinder seat 26, the wedge shape position of lower end is inserted in the slot of the taper sheath of slips 38 upper end, slip spider is sleeved on exterior central tube 16, and cone 37, slip spider 43 lock washer 39, nut 40 and hexagon socket cap head screw 41,42 connect.
Described solution sealing mechanism comprises slip carrier 46 and lock dog 45, slip carrier 46 is fixed on the lower end of exterior central tube 16 and inner central tube 4 by deblocking pin 44, described lock dog 45 is installed between exterior central tube 16 and inner central tube 4 in draw-in groove, and the below that inner central tube is positioned at lock dog is provided with the groove for discharging lock dog.
In this packer, be also provided with O RunddichtringO 3,5,6,8,14,15,18,19,21,23,26,31, to ensure the sealing performance of whole packer simultaneously.
During work, top connection 1 of the present utility model is connected with measure tubing string, liquid is squeezed into during design attitude from well head under tubing string, fluid pressure enters the axial pressure transmission passage of anchor body 2 by down-hole string and instrument top connection 1 endoporus, hydraulic pressure enters two-stage plunger shaft through anchor body 2 and upper overcoat 17 communicating pipe 13, reach specified set pressure after, promotion sets piston 20 and under to set piston 24 descending, cut off and set shear pin 29, glue tube base 25 and the descending compression packing element 33 of packing element mandrel 30 in promotion, 35, continuing descending promotion cone 37 makes slips 38 cone open seat card, after sitting card, continue compacting packing element, ensure and fully contact with sleeve pipe, the lock ring 28 being simultaneously enclosed within exterior central tube 16 enters lock, under the spring 27 set between piston 24 and lock ring 28 make lock ring 28 not resilience, lock ring 28 and exterior central tube 16 lock, packer setting has locked thus.When after packer setting, when strata pressure or operation pressure are greater than liquid column hydrostatic pressure on packer, anchor fluke 11 just struts, play on preventing and move effect, when strata pressure or operation pressure are less than liquid column hydrostatic pressure on packer, anchor fluke 11 the automatic recovery, does not increase deblocking load.
When needs deblocking, because slips 38 is anchored on casing wall, need the inside and outside differential pressure of balanced measure tubing string, make anchor fluke 11 the automatic recovery on moveable anchor body 2, measure tubing string is carried again, band power driven tools top connection 1 and inner central tube 4 up, after cutting off deblocking shear pin 44, inner central tube 4 drives exterior central tube 16 up, discharge lock dog 45 simultaneously, slip carrier 46 and exterior central tube 16 is made to lose support, exterior central tube 16 continues up, piston 24 is set under drive, lock ring 28, upper glue tube base 25 and packing element mandrel 30 up, packing element 33, 35 reclaim, packing element mandrel 30 drive lower rubber cylinder seat 36 and cone 37 up, slips 38 and sleeve pipe is allowed to lose support, complete deblocking process.
Claims (8)
1. an anchor watt retrievable casing packer, it comprises top connection, inner central tube, the exterior central tube be enclosed within outside inner central tube, is successively set on setting retaining mechanism, sealing mechanism, it is characterized in that on exterior central tube: it also comprise anti-on push up anchor mechanism, the anti-anchor mechanism that moves down conciliates sealing mechanism, anti-upper top anchor mechanism is arranged on the top setting retaining mechanism, prevents moving down anchor mechanism, separating the below that sealing mechanism is successively set on sealing mechanism.
2. a kind of anchor according to claim 1 watt retrievable casing packer, it is characterized in that, axial pressure transmission passage is provided with in the anchor body pushing up anchor mechanism on anti-, in the overcoat setting retaining mechanism, be provided with pressure transmission hole be connected with the plunger shaft setting piston setting retaining mechanism, pressure transmission passage is communicated with by communicating pipe with pressure transmission hole.
3. a kind of anchor according to claim 2 watt retrievable casing packer, it is characterized in that, described anti-upper top anchor mechanism comprises anchor body, on anchor body circumferentially direction be arranged at intervals with multiple on push up anchor fluke, and by spring, pressing plate and securing member, anchor fluke to be fixed on anchor body.
4. a kind of anchor according to claim 1 and 2 watt retrievable casing packer, it is characterized in that, prevent that moving down anchor mechanism comprises cone, slips, slip spider, cone is fixedly connected with the glue tube base of sealing mechanism, the wedge shape position of cone lower end is inserted in the slot of the taper sheath of slips upper end, and slip spider is sleeved on exterior central tube.
5. a kind of anchor according to claim 1 and 2 watt retrievable casing packer, it is characterized in that, described solution sealing mechanism comprises slip carrier and lock dog, slip carrier is fixed on exterior central tube and inner central tube by deblocking pin, described lock dog is installed between exterior central tube and inner central tube in draw-in groove, and the below that inner central tube is positioned at lock dog is provided with the groove for discharging lock dog.
6. a kind of anchor according to claim 1 and 2 watt retrievable casing packer, it is characterized in that, the described retaining mechanism that sets is that two-stage sets, it comprise overcoat, on set piston, lower overcoat, under set piston, lower overcoat is fixed on the glue tube base of sealing mechanism by setting pin, the upper end of glue tube base is arranged on down the step place set on piston, under set piston below be provided with lock ring for locking with the lock tooth that arranges on exterior central tube.
7. a kind of anchor according to claim 6 watt retrievable casing packer, is characterized in that, lock ring and under set between piston and be provided with spring.
8. a kind of anchor according to claim 1 and 2 watt retrievable casing packer; it is characterized in that; described sealing mechanism comprises and is sleeved on packing element mandrel on exterior central tube, and packing element mandrel sets gradually glue tube base, protection bowl, end packing element, middle packing element, lower rubber cylinder, lower rubber cylinder seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520633380.2U CN205000943U (en) | 2015-08-21 | 2015-08-21 | But anchor tile modus ponens casing packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520633380.2U CN205000943U (en) | 2015-08-21 | 2015-08-21 | But anchor tile modus ponens casing packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205000943U true CN205000943U (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520633380.2U Active CN205000943U (en) | 2015-08-21 | 2015-08-21 | But anchor tile modus ponens casing packer |
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| CN (1) | CN205000943U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355195A (en) * | 2017-04-28 | 2017-11-17 | 北京捷威思特科技有限公司 | Formation testing samples twin packer |
| CN108825166A (en) * | 2018-05-30 | 2018-11-16 | 宝鸡瑞林石油机电设备有限责任公司 | A kind of novel water injection packer |
| CN112983340A (en) * | 2019-12-13 | 2021-06-18 | 中国石油化工股份有限公司 | Packer for ultra-deep well |
| CN115370316A (en) * | 2022-09-01 | 2022-11-22 | 惟其信石油机械(天津)有限公司 | Double-anchoring high-pressure packer |
| CN115680553A (en) * | 2021-07-28 | 2023-02-03 | 中国石油天然气股份有限公司 | Packer and gas injection pipe column |
-
2015
- 2015-08-21 CN CN201520633380.2U patent/CN205000943U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355195A (en) * | 2017-04-28 | 2017-11-17 | 北京捷威思特科技有限公司 | Formation testing samples twin packer |
| CN108825166A (en) * | 2018-05-30 | 2018-11-16 | 宝鸡瑞林石油机电设备有限责任公司 | A kind of novel water injection packer |
| CN108825166B (en) * | 2018-05-30 | 2020-09-22 | 宝鸡瑞林石油机电设备有限责任公司 | Novel water injection packer |
| CN112983340A (en) * | 2019-12-13 | 2021-06-18 | 中国石油化工股份有限公司 | Packer for ultra-deep well |
| CN115680553A (en) * | 2021-07-28 | 2023-02-03 | 中国石油天然气股份有限公司 | Packer and gas injection pipe column |
| CN115370316A (en) * | 2022-09-01 | 2022-11-22 | 惟其信石油机械(天津)有限公司 | Double-anchoring high-pressure packer |
| CN115370316B (en) * | 2022-09-01 | 2024-05-28 | 惟其信石油机械(天津)有限公司 | Double-anchoring high-pressure packer |
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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: 20191212 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee after: PETROLEUM ENGINEERING TECHNOLOGY RESEARCH INSTITUTE, JIANGHAN OILFIELD BRANCH OF CHINA PETROCHEMICAL CORPORATION Patentee after: China Petrochemical Co., Ltd. Address before: 430035 Hubei city of Wuhan province Gutian two Road No. 37 HSBC Nanniwan Avenue headquarters block fifth B Patentee before: PETROLEUM ENGINEERING TECHNOLOGY RESEARCH INSTITUTE, JIANGHAN OILFIELD BRANCH OF CHINA PETROCHEMICAL CORPORATION |