CN107816332A - A kind of slip-type back-up sand eyelid retractor - Google Patents
A kind of slip-type back-up sand eyelid retractor Download PDFInfo
- Publication number
- CN107816332A CN107816332A CN201710831950.2A CN201710831950A CN107816332A CN 107816332 A CN107816332 A CN 107816332A CN 201710831950 A CN201710831950 A CN 201710831950A CN 107816332 A CN107816332 A CN 107816332A
- Authority
- CN
- China
- Prior art keywords
- cone
- sand
- eyelid retractor
- top connection
- outside
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
Abstract
The present invention relates to a kind of slip-type back-up sand eyelid retractor.It is easily destroyed mainly to solve the shut-in well instrument of existing protection well head and pit shaft, and sand easily leaks into well and the problem of sand card occurs in capping operation back-up sand.It is characterized in that：The top connection（1）Inside is by unsealing pin（3）Connect fishing head（2）, top connection（1）Bottom outside connects upper cone（8）, the top connection（1）Outside is provided with Sand-proof leather cup（4）, the top connection（1）The inner side connection lower cone double-direction control pipe of bottom（12）, lower cone double-direction control pipe（12）Bottom connects lower cone（13）, upper cone（8）And lower cone（13）Outside is provided with slips（10）, slips（10）Upper and lower ends are by cone guide sleeve（9）It is fixed, cone guide sleeve（9）Inside passes through anti-rotation pin（16）Connect eyelid retractor inner sleeve（17）.The slip-type back-up sand eyelid retractor can sit card at an arbitrary position, reach protection pit shaft and grasp the purpose of underground bridging plug shut-in well state in time.
Description
Technical field
The present invention relates to a kind of oilfield, specifically a kind of slip-type back-up sand eyelid retractor.
Background technology
The shut-in well instrument of protection well head and pit shaft can block sleeve pipe at the 6-20m of underground at present, realize zonal isolation, protection
The purpose of well head and pit shaft, but sand easily leaks into well and the problem of sand card occurs in operation back-up sand, and easily destroyed, solution
Seal operation when can not pressure release, serious safety and environmental protection hidden danger be present.
The content of the invention
In order to overcome the shut-in well instrument of existing protection well head and pit shaft easily destroyed, and the sand in capping operation back-up sand
Easily leak into well and the deficiency of sand card occur, the present invention provides a kind of slip-type back-up sand eyelid retractor, the slip-type back-up sand eyelid retractor
Card can be sat at an arbitrary position, reached protection pit shaft and grasped the purpose of underground bridging plug shut-in well state in time.
The technical scheme is that：A kind of slip-type back-up sand eyelid retractor, including top connection, pass through inside the top connection
Pin connection fishing head, top connection bottom outside connection upper cone are unsealed, the top connection outside is provided with Sand-proof leather cup, anti-rubber
Bowl bottom is provided with upper cone spacing ring, is threadedly coupled outside upper cone spacing ring with cone guide sleeve, Sand-proof leather cup and upper cone
Leather cup pressure ring is provided with inside spacing ring；The inner side connection lower cone double-direction control pipe of the top connection bottom, the two-way control of lower cone
Tubulation bottom connects lower cone, is provided with slips outside upper cone and lower cone, slips upper and lower ends are fixed by cone guide sleeve, institute
State and upper cone Stroke Control pin is fixed between cone guide sleeve top and upper cone, be fixed with down between bottom and lower cone
Cone Stroke Control pin, eyelid retractor inner sleeve is connected by anti-rotation pin inside cone guide sleeve, the outside of eyelid retractor inner sleeve is set
There is radial direction slips, and be provided with radial direction slips return spring therebetween, the eyelid retractor inner sleeve bottom connects restraining position ring block, described
The outside of radial direction slips upper and lower ends is spacing by cone guide sleeve and spacing ring respectively, and eyelid retractor inner sleeve bottom is connected with pressure release
Ring.
The present invention has the advantages that：Due to taking such scheme, the Sand-proof leather cup of the device can with automatic sealing package every
Oil sets annular space, prevent that sand is leak into well downwards in back-up sand, protect the anchor mechanism of bottom not by sand card；And the dress
Card can be sat at an arbitrary position by putting, and realized protection pit shaft and grasped the purpose of underground bridging plug shut-in well state in time.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
1- top connections in figure, 2- fishing heads, 3- deblocking pins, 4- Sand-proof leather cups, 5- leather cup pressure rings, 6- upper cones are spacing
Ring, 7- upper cone Stroke Control pins, 8- upper cones, 9- cone guide sleeves, 10- slips, 11- slips return springs, bore under 12-
Body double-direction control pipe, 13- lower cones, 14- lower cones axial direction fixture block, 15- lower cone Stroke Control pins, 16- anti-rotation pins,
17- eyelid retractor inner sleeves, 18- radial direction slips, 19- radial direction slips return springs, 20- spacing rings, 21- pressure relief rings.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As shown in Figure 1, a kind of slip-type back-up sand eyelid retractor, including top connection 1, connected by unsealing pin 3 inside the top connection 1
Fishing head 2 is connect, the bottom outside of top connection 1 threaded connection upper cone 8, the outside of upper cone 8 is provided with cone guide sleeve 9, the cone
Upper cone Stroke Control pin 7 is fixed between the top of guide sleeve 9 and upper cone 8.The outside of top connection 1 is provided with Sand-proof leather cup
4, the bottom of Sand-proof leather cup 4 is provided with upper cone spacing ring 6, and the outside of upper cone spacing ring 6 is threadedly coupled with cone guide sleeve 9, sand control
Leather cup 4 is provided with leather cup pressure ring 5 with the inside of upper cone spacing ring 6.The inner side connection lower cone double-direction control of the bottom of top connection 1
Pipe 12, the bottom of lower cone double-direction control pipe 12 connection lower cone 13, upper cone 8 and the outside of lower cone 13 are provided with slips 10, slips
10 upper and lower ends are fixed by cone guide sleeve 9, and by lower cone Stroke Control pin 15 between cone guide sleeve 9 and lower cone 13
It is fixed.The bottom of lower cone 13 is provided with eyelid retractor inner sleeve 17, and passes through stop pin between cone guide sleeve 9 and eyelid retractor inner sleeve 17
The connection of nail 16.The exterior circumferential of eyelid retractor inner sleeve 17 is provided with groove, and radial direction slips 18, and eyelid retractor inner sleeve 17 are provided with groove
Radial direction slips return spring 19 is provided between radial direction slips 18, the bottom of eyelid retractor inner sleeve 17 connects restraining position ring block 20, institute
It is spacing by cone guide sleeve 9 and spacing ring 20 respectively to state the outside of the upper and lower ends of radial direction slips 18, the bottom of eyelid retractor inner sleeve 17 connects
It is connected to pressure relief ring 21.
When sitting card, oil pipe is connected with top connection 1, G.I.H projected depth.By eyelid retractor inner sleeve 17, radial direction slips
18th, under the anti-rotation effect for the centralizer that radial direction slips return spring 19, spacing ring 20 form, rotate counterclockwise oil pipe, top connection 1
Upper cone 8, lower cone 13 is driven to do respectively with lower cone double-direction control pipe 12 moving axially relative, slips 10, which is softened, to be supported on
On internal surface of sleeve pipe.Further rotate counterclockwise oil pipe, oil pipe disengage with top connection 1, complete to sit card.Play flowline, back-up sand to well
Mouthful.
During unfreezing, tripping in oil pipe sand washing, the oil pipe that then turns clockwise docks with top connection 1, further rotates oil pipe, on
Joint 1 and lower cone double-direction control pipe 12 drive upper cone 8, lower cone 13 to be axially opposite motion respectively, withdraw slips 10,
Whole slips back-up sand eyelid retractor can be risen.If it is unsuccessful can tripping in Special fishing tool drag for fishing head 2, carry salvaging pipe
Post cuts deblocking pin 3, and lower cone axial direction fixture block 14 loses support, unlocks lower cone double-direction control pipe 12 and lower cone 13,
Withdraw slips 10, whole slips back-up sand eyelid retractor can be risen.
Claims (1)
1. a kind of slip-type back-up sand eyelid retractor, including top connection（1）, it is characterised in that：The top connection（1）Inside passes through deblocking
Pin（3）Connect fishing head（2）, top connection（1）Bottom outside connects upper cone（8）, the top connection（1）Outside is provided with sand control
Leather cup（4）, Sand-proof leather cup（4）Bottom is provided with upper cone spacing ring（6）, upper cone spacing ring（6）Outside and cone guide sleeve（9）
Threaded connection, Sand-proof leather cup（4）With upper cone spacing ring（6）Inside is provided with leather cup pressure ring（5）；The top connection（1）Bottom
Inner side connects lower cone double-direction control pipe（12）, lower cone double-direction control pipe（12）Bottom connects lower cone（13）, upper cone（8）
And lower cone（13）Outside is provided with slips（10）, slips（10）Upper and lower ends are by cone guide sleeve（9）Fixed, the cone is oriented to
Set（9）Top and upper cone（8）Between be fixed with upper cone Stroke Control pin（7）, bottom and lower cone（13）Between it is fixed
There is lower cone Stroke Control pin（15）, the cone guide sleeve（9）Inside passes through anti-rotation pin（16）Connect eyelid retractor inner sleeve
（17）, eyelid retractor inner sleeve（17）Outside be provided with radial direction slips（18）, and radial direction slips return spring is provided with therebetween（19）,
The eyelid retractor inner sleeve（17）Bottom connects restraining position ring block（20）, the radial direction slips（18）The outside of upper and lower ends is respectively by boring
Body guide sleeve（9）And spacing ring（20）It is spacing, eyelid retractor inner sleeve（17）Bottom is connected with pressure relief ring（21）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710831950.2A CN107816332A (en) | 2017-09-15 | 2017-09-15 | A kind of slip-type back-up sand eyelid retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710831950.2A CN107816332A (en) | 2017-09-15 | 2017-09-15 | A kind of slip-type back-up sand eyelid retractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107816332A true CN107816332A (en) | 2018-03-20 |
Family
ID=61607579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710831950.2A Pending CN107816332A (en) | 2017-09-15 | 2017-09-15 | A kind of slip-type back-up sand eyelid retractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107816332A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117684910A (en) * | 2024-02-02 | 2024-03-12 | 盐城市弘通石油机械有限公司 | Efficient sand-prevention forced unclamping throttle |
| CN117684910B (en) * | 2024-02-02 | 2024-05-14 | 盐城市弘通石油机械有限公司 | Efficient sand-prevention forced unclamping throttle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2895733Y (en) * | 2006-03-16 | 2007-05-02 | 周隽 | Extrusion gravel-packing sand-proof tool |
| CN201062501Y (en) * | 2007-07-12 | 2008-05-21 | 孔利生 | Barefoot horizontal well packing sand-proof tool |
| US20080190600A1 (en) * | 2004-02-27 | 2008-08-14 | Smith International, Inc. | Drillable bridge plug |
| CN201443323U (en) * | 2009-08-05 | 2010-04-28 | 阜新驰宇石油机械有限公司 | Anti-spray anchoring machine of screw pump |
| CN202338266U (en) * | 2011-12-02 | 2012-07-18 | 中国石油天然气股份有限公司 | Cup-type packer capable of being anchored |
| CN205663427U (en) * | 2015-10-24 | 2016-10-26 | 江苏力克石油机械有限公司 | Two -way pressure -bearing blanking plug |
-
2017
- 2017-09-15 CN CN201710831950.2A patent/CN107816332A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080190600A1 (en) * | 2004-02-27 | 2008-08-14 | Smith International, Inc. | Drillable bridge plug |
| CN2895733Y (en) * | 2006-03-16 | 2007-05-02 | 周隽 | Extrusion gravel-packing sand-proof tool |
| CN201062501Y (en) * | 2007-07-12 | 2008-05-21 | 孔利生 | Barefoot horizontal well packing sand-proof tool |
| CN201443323U (en) * | 2009-08-05 | 2010-04-28 | 阜新驰宇石油机械有限公司 | Anti-spray anchoring machine of screw pump |
| CN202338266U (en) * | 2011-12-02 | 2012-07-18 | 中国石油天然气股份有限公司 | Cup-type packer capable of being anchored |
| CN205663427U (en) * | 2015-10-24 | 2016-10-26 | 江苏力克石油机械有限公司 | Two -way pressure -bearing blanking plug |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117684910A (en) * | 2024-02-02 | 2024-03-12 | 盐城市弘通石油机械有限公司 | Efficient sand-prevention forced unclamping throttle |
| CN117684910B (en) * | 2024-02-02 | 2024-05-14 | 盐城市弘通石油机械有限公司 | Efficient sand-prevention forced unclamping throttle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180320 |
|
| RJ01 | Rejection of invention patent application after publication |