CN210888854U

CN210888854U - Wear-resistant non-metal hydraulic anchor for oil well operation

Info

Publication number: CN210888854U
Application number: CN201921690988.3U
Authority: CN
Inventors: 袁文东; 高嵩; 管华; 周会勇; 刘兴娟
Original assignee: Yancheng Huaruitong Machinery Co ltd
Current assignee: Yancheng Huaruitong Machinery Co ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-06-30
Anticipated expiration: 2029-10-10

Abstract

The utility model discloses a wear-resistant non-metallic hydraulic anchor for oil well operation, which comprises a column casing, an inner cylinder, tile grooves, a slip body, a through hole and a reset spring, wherein the inner cylinder is inserted into one end of the column casing and meshed with the column casing, the through hole is uniformly arranged on the surface of the inner cylinder, four tile grooves are symmetrically arranged on the surface of the column casing, the slip body is clamped in the tile grooves in a matching way, the middle parts of the tile grooves and the slip body are in a matching convex step shape, the reset spring is fixed at the inner end of the slip body, the non-metallic hydraulic anchor improves the traditional small surface anchoring, increases the contact area between the slip body and the outer pipe wall, reduces the pressure of the slip body to the outer pipe wall, increases the friction force, upgrades the protection and stabilization effects, simultaneously, not only ensures that the fitting precision of the slip body and the tile grooves is high, the friction life is long, but also the non-metallic slip plate realizes the scratch-resistant protection to the outer pipe wall, the practicability is improved.

Description

Wear-resistant non-metal hydraulic anchor for oil well operation

Technical Field

The utility model relates to a hydraulic anchor technical field specifically is a non-metallic hydraulic anchor for oil well operation that stand wear and tear.

Background

The hydraulic anchor is pressed through the inside of the oil pipe, anchor claws evenly distributed on the circumferential surface of the hydraulic anchor body extend outwards under the action of hydraulic pressure generated by internal and external pressure difference, anchor teeth on the outer surface of the anchor claws are embedded into the wall of the sleeve, the tool is limited from moving up and down, and anchoring is realized. After the difference between the internal pressure and the external pressure of the tool is eliminated, the anchor fluke is reset under the elastic force action of the internal spring between the baffle and the anchor fluke, and the anchoring is released.

The hydraulic anchor has the branch of metal and nonmetal, and metal hydraulic anchor use strength is high, but its surface hardness is big, causes the destruction to the sleeve pipe inner wall easily, and this shortcoming is overcome to nonmetal hydraulic anchor, but traditional nonmetal hydraulic anchor, fixed effect is relatively poor, and wear-resisting effect is poor, and long-time use appears the pressure release feelings easily, leads to the anchoring unstability, for this reason, we propose a non-metal hydraulic anchor for oil well operation that stand wear and tear.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a non-metallic hydraulic anchor for oil well operation that stand wear and tear to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a non-metallic hydraulic anchor for abrasion-resistant oil well operation, includes column casing, inner tube, tile groove, the slip body, through-hole and reset spring, column casing one end has inserted the inner tube, and the inner tube is connected with the meshing of column casing, the through-hole has evenly been seted up on the inner tube surface, four tile grooves have been seted up to column casing surface symmetry, and the cooperation joint of tile inslot has the slip body, tile groove and slip body middle part are the complex terrace form, slip body inner is fixed with reset spring, and the slip body passes through reset spring and inner tube elastic connection.

Preferably, the slip body includes tile cover and tile board, the sealed cooperation in tile cover outer wall and tile groove, the tile board embedding is fixed inside the tile cover, the tile cover adopts stainless steel material to make, the tile board adopts the compound engineering plastics of stereoplasm to make.

Preferably, the outer wall of the column casing is provided with a concave step groove at the position of the tile groove top opening, and the top of the tile plate is embedded into the concave step groove in a matching manner.

Preferably, the corrugated bulges are uniformly fixed on the outer surface of the tile plate.

Preferably, the through hole is formed in the surface of the inner cylinder and located between the slip bodies.

Preferably, the corners of the column casing and the inner cylinder are provided with chamfers.

Compared with the prior art, the beneficial effects of the utility model are that: the device is inside when using and supplies the pressure, the elasticity that reset spring was overcome to pressure makes the slips body outwards slide, extrusion contact through slips body outer wall and outer tube, realize the anchoring effect of device, cancel when device internal pressure, the elasticity through reset spring makes the slips body reset, remove the anchoring, this nonmetal hydraulic anchor improves traditional facet anchoring, increase the area of contact of slips body and outer tube wall, not only reduce the pressure of slips body to the outer pipe wall, and increase frictional force, protection and firm effect have been upgraded, simultaneously through the slips body including the combination of tile sleeve and tile board, not only make slips body and tile groove laminating precision high, friction is longe-lived, and non-metallic tile board realizes preventing scraping the protection to the outer pipe wall, improve the practicality.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

FIG. 3 is a schematic sectional view of the present invention;

FIG. 4 is a schematic view of the slip body of the present invention;

fig. 5 is a schematic view of the corrugated protrusion structure of the present invention.

In the figure: 1. a column casing; 2. an inner barrel; 3. a tile groove; 4. a slip body; 5. a through hole; 6. a return spring; 7. sleeving a tile; 8. a recessed step groove; 9. a tile plate; 10. the corrugation is convex.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a non-metallic hydraulic anchor for abrasion-resistant oil well operation, includes column casing 1, inner tube 2, tile groove 3, the slips body 4, through-hole 5 and reset

spring

6, 1 one end of column casing has inserted inner tube 2, and inner tube 2 is connected with the meshing of column casing 1, through-hole 5 has evenly been seted up on 2 surfaces of inner tube, four tile grooves 3 have been seted up to 1 surface symmetry of column casing, and 3 interior cooperation joints in tile groove have

slips body

4, 3 and 4 middle parts of slips body are the complex terrace shape, 4 the inner of slips body is fixed with reset spring 6, and slips body 4 passes through

reset spring

6 and 2 elastic connection of inner tube.

Inside confession is pressed when the device uses, reset spring 6's elasticity is overcome to pressure makes the slips body 4 outwards slide, extrusion contact through slips body 4 outer wall and outer tube, realize the anchoring effect of device, cancel when device internal pressure, elasticity through reset spring 6 makes slips body 4 reset, remove the anchoring, traditional facet anchoring is improved to this non-metallic hydraulic anchor, increase slips body 4 and outer pipe wall's area of contact, not only reduce slips body 4 to the pressure of outer pipe wall, and increase frictional force, protection and firm effect have been upgraded.

The slip body 4 includes tile cover 7 and tile board 9, the sealed cooperation of 7 outer walls of tile cover and tile groove 3, the embedding of tile board 9 is fixed inside tile cover 7, tile cover 7 adopts stainless steel to make, and surperficial anti frictional strength is big, and surface accuracy is high moreover, improves the sealed effect of the cooperation of the slip body 4 and tile groove 3, tile board 9 adopts stereoplasm composite engineering plastics to make, and the surface hardness is low, avoids causing the scratch to the pipe wall.

The outer wall of the column casing 1 is located at the top opening of the tile groove 3 and is provided with a concave step groove 8, the top of the tile plate 9 is matched and embedded into the concave step groove 8, and the outer wall laminating sealing effect of the tile body 4 and the tile groove 3 is improved.

The corrugated bulges 10 are uniformly fixed on the outer surface of the tile plate 9, so that the friction factor of the surface of the tile plate 9 is increased, and the anchoring strength is improved.

The through hole 5 is formed in the surface of the inner barrel 2 and located between the slip bodies 4, and the influence on the connection and installation of the return spring 6 is avoided.

The corners of the column casing 1 and the inner cylinder 2 are provided with chamfers, so that the surface of the device is smoother, and the surface precision is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a non-metallic hydraulic anchor for abrasion-resistant oil well operation, includes column casing (1), inner tube (2), tile groove (3), slip body (4), through-hole (5) and reset spring (6), its characterized in that: the utility model discloses a column casing, including the column casing (1), the inner tube (2) has been inserted to column casing (1) one end, and inner tube (2) are connected with the meshing of column casing (1), through-hole (5) have evenly been seted up on inner tube (2) surface, four tile groove (3) have been seted up to column casing (1) surface symmetry, and tile groove (3) fit-in joint has slip body (4), slip groove (3) and slip body (4) middle part are the complex terrace form, slip body (4) inner is fixed with reset spring (6), and slip body (4) are through reset spring (6) and inner tube (2) elastic connection.

2. A wear-resistant nonmetallic hydraulic anchor for oil well operations as set forth in claim 1, characterized in that: the slip body (4) comprises a slip sleeve (7) and a slip plate (9), the outer wall of the slip sleeve (7) is in sealing fit with the slip groove (3), the slip plate (9) is embedded and fixed in the slip sleeve (7), the slip sleeve (7) is made of stainless steel, and the slip plate (9) is made of hard composite engineering plastics; the outer wall of the column casing (1) is positioned at the top opening of the tile groove (3) and is provided with a concave step groove (8), and the top of the tile plate (9) is embedded into the concave step groove (8) in a matching mode.

3. A wear-resistant nonmetallic hydraulic anchor for oil well operations as set forth in claim 2, characterized in that: corrugated bulges (10) are uniformly fixed on the outer surface of the tile plate (9).

4. A wear-resistant nonmetallic hydraulic anchor for oil well operations as set forth in claim 1, characterized in that: the through hole (5) is formed in the surface of the inner cylinder (2) and located between the slip bodies (4).

5. A wear-resistant nonmetallic hydraulic anchor for oil well operations as set forth in claim 1, characterized in that: chamfers are arranged on the corners of the column casing (1) and the inner casing (2).