CN202706966U - Novel sleeve pipe pre-stress ground anchor - Google Patents
Novel sleeve pipe pre-stress ground anchor Download PDFInfo
- Publication number
- CN202706966U CN202706966U CN 201220225198 CN201220225198U CN202706966U CN 202706966 U CN202706966 U CN 202706966U CN 201220225198 CN201220225198 CN 201220225198 CN 201220225198 U CN201220225198 U CN 201220225198U CN 202706966 U CN202706966 U CN 202706966U
- Authority
- CN
- China
- Prior art keywords
- ball
- back pressure
- piston body
- support set
- pressure valve
- 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
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to an special-purpose oil field well-drilling tool and particularly relates to a novel sleeve pipe pre-stress ground anchor. The technical solution of the novel sleeve pipe pre-stress ground anchor is characterized in that a support sleeve and a ball seat are fixed inside a cylinder body, a piston body is fixed between the cylinder body and the support sleeve, a lower part of the support sleeve is provided with a clamp spring for the support sleeve, a lower part of the ball seat is connected with a ball seat guiding rod, a lower part of the piston body is provided with a back pressure valve support disk, valve ball guide bars are mounted between the piston body and the back pressure valve support disk, a back pressure valve ball and a spring are arranged between the valve ball guide bars, the lower part of the back pressure valve support disk is connected with a push rod through a screw bolt, the push rod and the cylinder body are connected through a support pin, the lower part of the push rod is connected with anchor flukes through connecting plates, and the anchor flukes are fixed on an anchor fluke seat. The beneficial effects of the novel sleeve pipe pre-stress ground anchor are that various requirements for pre-lifting force of thermal production well sleeve pipes can be met. The novel sleeve pipe pre-stress ground anchor is advantaged by compact structure, simplicity of construction, ground-gripping firmness, recyclable property before ground gripping processes, automatic slurry grouting property, integration of the back pressure valve and the guiding shoe, and the like. When the novel sleeve pipe pre-stress ground anchor is in use, installation of the back pressure valve and the guiding shoe is not required.
Description
One, technical field
The utility model relates to a kind of oil drilling special tool, particularly a kind of new casing prestressed ground anchor.
Two, background technology
The sleeve pipe prestressed ground anchor is the lower end that is connected to the thermal recovery oil well casing.15～20Mpa earth anchor that builds the pressure during well cementing impact pressure is started working, and carries sleeve pipe on then, makes sleeve pipe produce prestressing force.To prevent sleeve pipe when the steam injection, deform and damage in early days.The earth anchor complex structure of commonly using at present, volume is large; Need to cooperate during use back pressure valve and guide shoe are installed, construction is complicated, inefficiency.
Three, summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, provides a kind of new casing prestressed ground anchor, compact conformation; Construction is simple; Grab ground firmly.
Its technical scheme is: by the support set shear pin, movable shear pin, the support set jump ring, support set, the seat shear pin nail, ball seat, the ball seat guide peg, piston body, the back pressure valve ball, the valve ball gib block, spring, the back pressure valve pallet, bolt, push rod, supporting pin, cylindrical shell, yoke plate, anchor fluke, the anchor fluke seat, ball, retainer ring forms, cylindrical shell top is provided with retainer ring, inner barrel fixed support cover and ball seat, ball is installed on the ball seat, support set is connected the seat shear pin nail and connects with ball seat, fixed piston body between cylindrical shell and the support set, support set is connected by the support set shear pin with piston body, cylindrical shell is connected by movable shear pin with piston body, described support set bottom is provided with the support set jump ring, the bottom of ball seat connects the ball seat guide peg, the bottom of piston body is provided with the back pressure valve pallet, the valve ball gib block is installed between piston body and the back pressure valve pallet, be provided with the back pressure valve ball and spring between the valve ball gib block, the bottom of described back pressure valve pallet is bolted push rod, push rod is connected by supporting pin with cylindrical shell, the bottom of push rod connects anchor fluke by yoke plate, and described anchor fluke is fixed on the anchor fluke seat.
Be provided with the ball seat sealing ring between described ball seat and the support set.
Be provided with the support set sealing ring between described support set and the piston body.
Be provided with the piston body sealing ring between described cylindrical shell and the piston body.
The beneficial effects of the utility model are: can satisfy the requirement that various thermal production well sleeves lift power in advance, have compact conformation; Construction is simple; Grab ground firmly; Grab before the ground capable of circulation; Auto-grouting; The advantage such as back pressure valve, guide shoe are integrated can be installed back pressure valve and guide shoe during use again.
Four, description of drawings
Accompanying drawing 1 is structural representation of the present utility model;
Among the upper figure: ball seat sealing ring 1, support set shear pin 2, support set sealing ring 3, movable shear pin 4, support set jump ring 5, support set 6, seat shear pin nail 7, ball seat 8, ball seat guide peg 9, piston body 10, piston body sealing ring 11, back pressure valve ball 12, valve ball gib block 13, spring 14, back pressure valve pallet 15, bolt 16, push rod 17, supporting pin 18, cylindrical shell 19, yoke plate 20, anchor fluke 21, anchor fluke seat 22, ball 23, retainer ring 24.
Five, the specific embodiment
By reference to the accompanying drawings 1, the utility model will be further described:
The utility model is by ball seat sealing ring 1, support set shear pin 2, support set sealing ring 3, movable shear pin 4, support set jump ring 5, support set 6, seat shear pin nail 7, ball seat 8, ball seat guide peg 9, piston body 10, piston body sealing ring 11, back pressure valve ball 12, valve ball gib block 13, spring 14, back pressure valve pallet 15, bolt 16, push rod 17, supporting pin 18, cylindrical shell 19, yoke plate 20, anchor fluke 21, anchor fluke seat 22, ball 23, retainer ring 24 forms, cylindrical shell 19 tops are provided with retainer ring 24, cylindrical shell 19 inner fixed support cover 6 and ball seats 8, ball 23 is installed on the ball seat 8, support set 6 is connected with ball seat by 7 connections of seat shear pin nail, fixed piston body 10 between cylindrical shell 19 and the support set 6, support set 6 is connected by support set shear pin 2 with piston body 10, cylindrical shell 19 is connected by movable shear pin 4 with piston body 10, described support set 6 bottoms are provided with support set jump ring 5, the bottom of ball seat 8 connects ball seat guide peg 9, the bottom of piston body 10 is provided with back pressure valve pallet 15, valve ball gib block 13 is installed between piston body 10 and the back pressure valve pallet 15, be provided with back pressure valve ball 12 and spring 14 between the valve ball gib block 13, the bottom of described back pressure valve pallet 15 connects push rod 17 by bolt 16, push rod 17 is connected by supporting pin 18 with cylindrical shell 19, the bottom of push rod 17 connects anchor fluke 21 by yoke plate 20, and described anchor fluke 21 is fixed on the anchor fluke seat 22; Be provided with ball seat sealing ring 1 between described ball seat 8 and the support set 6, be provided with support set sealing ring 3 between described support set 6 and the piston body 10, be provided with piston body sealing ring 11 between described cylindrical shell 19 and the piston body 10.
Construction sequence:
Earth anchor is connected in sleeve bottom, and is coated with the sealing of screw thread glue; Load onto retainer ring every two sleeve pipes; The splicing sleeve string, lower to the precalculated position; The turn on pump circulating mud guarantees that the down-hole is normal; Pitching makes free-falling; With the cementing truck 8-10Mpa that builds the pressure; On lift power to the sleeve pipe suspending weight and transfer, and then on lift power and increase 5t and transfer again, carrying and transfer each pulling force on more all increases 5t, reach in advance to lift till the power, and the pad elevator is fixed always; Continue to build the pressure more than the 15MPa, suppress ball seat, cementing operation is prepared in the turn on pump circulation.
Earth anchor splicing sleeve bottom, mud can be returned by piston body exocoel passage in the setting of casing process, realize auto-grouting, and mud capable of circulation is to process in assurance cutting ferrule pipe and other situations, when instantly arriving the precalculated position, the turn on pump circulating mud, when the down-hole is normal from the well head pitching, can be with the ball free-falling, when ball arrives ball seat, the movable shear pin of the 5Mpa that builds the pressure is cut off, and piston body is descending, promotes the anchor fluke push rod, strutting anchor fluke by connecting rod stretches into the stratum and realizes grabbing ground, can lift prestressing force, the 10Mpa that continues to build the pressure cuts off the support set shear pin, the descending obstruction piston body of supporting seat circulation port, the 15Mpa seat shear pin that continues again to build the pressure nail is cut off, ball drops on the piston body step with ball seat, and mud can circulate to the ball seat bottom and by back pressure valve by ball seat top, can satisfy cementing requirements.
Claims (4)
1. new casing prestressed ground anchor, it is characterized in that: by support set shear pin (2), movable shear pin (4), support set jump ring (5), support set (6), seat shear pin nail (7), ball seat (8), ball seat guide peg (9), piston body (10), back pressure valve ball (12), valve ball gib block (13), spring (14), back pressure valve pallet (15), bolt (16), push rod (17), supporting pin (18), cylindrical shell (19), yoke plate (20), anchor fluke (21), anchor fluke seat (22), ball (23), retainer ring (24) forms, cylindrical shell (19) top is provided with retainer ring (24), the inner fixed support cover of cylindrical shell (19) (6) and ball seat (8), the upper ball (23) of installing of ball seat (8), support set (6) is connected 8 with ball seat) connect by seat shear pin nail (7), fixed piston body (10) between cylindrical shell (19) and the support set (6), support set (6) is connected by support set shear pin (2) with piston body (10), cylindrical shell (19) is connected by movable shear pin (4) with piston body (10), described support set (6) bottom is provided with support set jump ring (5), the bottom of ball seat (8) connects ball seat guide peg (9), the bottom of piston body (10) is provided with back pressure valve pallet (15), valve ball gib block (13) is installed between piston body (10) and the back pressure valve pallet (15), be provided with back pressure valve ball (12) and spring (14) between the valve ball gib block (13), the bottom of described back pressure valve pallet (15) connects push rod (17) by bolt (16), push rod (17) is connected by supporting pin (18) with cylindrical shell (19), the bottom of push rod (17) connects anchor fluke (21) by yoke plate (20), and described anchor fluke (21) is fixed on the anchor fluke seat (22).
2. new casing prestressed ground anchor according to claim 1 is characterized in that: be provided with ball seat sealing ring (1) between described ball seat (8) and the support set (6).
3. new casing prestressed ground anchor according to claim 1 is characterized in that: be provided with support set sealing ring (3) between described support set (6) and the piston body (10).
4. new casing prestressed ground anchor according to claim 1 is characterized in that: be provided with piston body sealing ring (11) between described cylindrical shell (19) and the piston body (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220225198 CN202706966U (en) | 2012-05-18 | 2012-05-18 | Novel sleeve pipe pre-stress ground anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220225198 CN202706966U (en) | 2012-05-18 | 2012-05-18 | Novel sleeve pipe pre-stress ground anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202706966U true CN202706966U (en) | 2013-01-30 |
Family
ID=47587275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220225198 Expired - Fee Related CN202706966U (en) | 2012-05-18 | 2012-05-18 | Novel sleeve pipe pre-stress ground anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202706966U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321599A (en) * | 2013-06-26 | 2013-09-25 | 中国海洋石油总公司 | Multifunctional ground anchor device |
| CN104514513A (en) * | 2013-09-27 | 2015-04-15 | 中国石油化工集团公司 | Cement-free well cementation method for horizontal section of horizontal well |
| CN112796692A (en) * | 2021-04-07 | 2021-05-14 | 纬达石油装备有限公司 | Prestressed multistage ground anchor and use method thereof |
-
2012
- 2012-05-18 CN CN 201220225198 patent/CN202706966U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321599A (en) * | 2013-06-26 | 2013-09-25 | 中国海洋石油总公司 | Multifunctional ground anchor device |
| CN103321599B (en) * | 2013-06-26 | 2016-03-02 | 中国海洋石油总公司 | A kind of Multifunctional ground anchor device |
| CN104514513A (en) * | 2013-09-27 | 2015-04-15 | 中国石油化工集团公司 | Cement-free well cementation method for horizontal section of horizontal well |
| CN104514513B (en) * | 2013-09-27 | 2017-03-08 | 中国石油化工集团公司 | Horizontal well horizontal segment exempts from cementing method |
| CN112796692A (en) * | 2021-04-07 | 2021-05-14 | 纬达石油装备有限公司 | Prestressed multistage ground anchor and use method thereof |
| CN112796692B (en) * | 2021-04-07 | 2021-06-22 | 纬达石油装备有限公司 | Prestressed multistage ground anchor and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201991465U (en) | Multifunctional well drilling pipe column air operated slip | |
| CN101864923B (en) | Split type anchor suspension packer | |
| CN202706966U (en) | Novel sleeve pipe pre-stress ground anchor | |
| CN104314486A (en) | Hydraulic power slip of removable oil string | |
| CN101718179B (en) | Safe setting method of expansion pipe | |
| CN102287149B (en) | Hydraulic power slip of drill rod | |
| CN101781977A (en) | Bidirectional high-pressure detachable bridge plug | |
| CN204225800U (en) | A kind of hydraulic power slip of dismantled and assembled petroleum pipe column | |
| CN203742505U (en) | Floating ball and float collar type prestress well cementation ground anchor assembly | |
| CN107882514B (en) | Release type compensator | |
| CN109779543B (en) | Expansion pipe pressurization system | |
| CN214944120U (en) | Hydraulic control type drill rod dynamic anchor | |
| CN202152661U (en) | Anchoring type graded deblocking packer for oil well | |
| CN201269059Y (en) | Down-hole clamping apparatus used for plunger gas lift | |
| CN203742506U (en) | Forcing float collar type prestressing force well cementation ground anchor assembly | |
| CN203515413U (en) | Mechanical and hydraulic dual-action ground anchor assembly | |
| CN107420041B (en) | Full hydraulic power head core drill without drilling tower | |
| CN202249868U (en) | Pressing type sleeve reversing device | |
| CN2233479Y (en) | Tube-drawing working machine | |
| CN202793821U (en) | Drilling machine load test apparatus | |
| CN202249834U (en) | Hydraulic power slip for drill pipe | |
| CN201546665U (en) | Recyclable bridge plug | |
| CN101858202A (en) | Full-hydraulic multifunctional wellhead device | |
| CN201943623U (en) | Oil pipe hydraulic jacking struck releasing device for ocean oil gas producing platform well repairing | |
| CN211230321U (en) | Well workover salvage reinforcement auxiliary device |
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 |
Granted publication date: 20130130 Termination date: 20150518 |
|
| EXPY | Termination of patent right or utility model |