CN212079230U

CN212079230U - Nylon sliding block centralizer

Info

Publication number: CN212079230U
Application number: CN202020559235.5U
Authority: CN
Inventors: 徐军
Original assignee: Yangzhou City Jiandu District Renhe Machinery Co ltd
Current assignee: Yangzhou City Jiandu District Renhe Machinery Co ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2020-12-04
Anticipated expiration: 2030-04-15

Abstract

The utility model discloses a nylon slider centralizer relates to instrument equipment technical field such as oil drilling or well cementation and well logging, including the centralizer body, the centralizer body is the cylinder, and inside cavity, centralizer body upper surface fixed is provided with the upper fixed disk, surface fixed is provided with down the fixed disk under the centralizer body, the even interval in centralizer body surface is provided with a plurality of cassettes, every all be provided with the nylon slider in the middle of the cassette, nylon slider and cassette fixed connection. The nylon sliding block surface in this application is smooth, and the centering degree of sleeve pipe or instrument in the well when can ensureing well cementation or logging guarantees the quality of well cementation or logging, and the nylon sliding block surface is provided with the spring moreover, can reduce the radial impact force that the centralizer received to nylon sliding block centralizer is split type, and the later stage of being convenient for has practiced thrift manufacturing cost to the maintenance and the change of centralizer.

Description

Nylon sliding block centralizer

Technical Field

The utility model relates to an oil is bored and is adopted or instrument equipment technical field such as well cementation and well logging, in particular to nylon sliding block centralizer.

Background

The centering degree of the casing or the instrument in the well hole is one of determinants of the well cementation or the well logging quality of the oil and gas well, and the placement of the centralizer is the basis of the centering or not of the casing or the instrument. Centralizers are components used to centralize, ensure concentricity of, and within, a casing or instrument in a wellbore. The performance of centralizers of different types has different influences on the setting-in and final centering degree of a casing or an instrument, and the existing centralizer has the problems that a working rib plate is easy to permanently deform after being subjected to large load, so that the resetting force of an elastic casing or an instrument centralizer is insufficient, the centering degree of the casing or the instrument in a well hole is insufficient during well cementation or logging, the well cementation or logging quality is reduced, serious consequences such as failure of well cementation or logging, inaccuracy of data of oil-gas string layers and the like can be caused when the eccentricity is too large, the deformed centralizer cannot be reused, and the cost is high.

SUMMERY OF THE UTILITY MODEL

The work gusset for overcoming the centralizer that exists among the prior art receives easy permanent deformation behind the big load, causes the power that resets of elastic sleeve centralizer not enough, and the higher problem of difficult maintenance cost, the utility model provides a nylon slider centralizer.

The specific technical scheme is as follows:

the utility model provides a nylon sliding block centralizer, includes the centralizer body, the centralizer body is the cylinder, and inside cavity, centralizer body upper fixed surface is provided with the upper fixed disk, centralizer body lower fixed surface is provided with down the fixed disk, the even interval in centralizer body surface is provided with a plurality of cassettes, every all be provided with the nylon sliding block in the middle of the cassette, nylon sliding block and cassette fixed connection.

Preferably, the clamping seat comprises two clamping pieces with the same structure size, and the two clamping pieces are symmetrically arranged and vertically welded on the surface of the centralizer body.

Preferably, the card is in an isosceles trapezoid shape.

Preferably, two the fixed orifices has been seted up in correspondence of card middle part, the through-hole has been seted up at the nylon sliding block middle part, through-hole and fixed orifices set up relatively, the nylon sliding block passes through bolt assembly and two adjacent card fixed connection.

Preferably, the nylon sliding block is ship-shaped, and the curved surface of the nylon sliding block is far away from the centralizer body.

Preferably, the inner surface of the nylon sliding block is provided with a plurality of circular grooves, springs are fixedly arranged in the circular grooves, and the springs are abutted to the centralizer body.

Preferably, the nylon sliding block is provided with two circular grooves on the inner surface.

Preferably, the nylon sliding blocks are provided with 6 nylon sliding blocks.

Compared with the prior art, the utility model following beneficial effect has:

(1) the utility model provides a centralizer includes a plurality of nylon sliding blocks, and in the use of centralizer, because the nylon sliding block surface is smooth, not only can reduce the wearing and tearing of centralizer, and the centering degree of sleeve pipe or instrument in the well bore when can ensureing well cementation or logging in addition guarantees the quality of well cementation or logging.

(2) The nylon sliding block surface in this application is provided with the spring, and in the use of centralizer, the nylon sliding block has certain deformability, can reduce the radial impact force that the centralizer received, has guaranteed the restoring force of spring housing centralizer, has further guaranteed the well cementation quality.

(3) The utility model provides a centralizer includes a plurality of nylon sliding blocks, and nylon sliding block and centralizer body are split type, receive permanent deformation back when the spring steel sheet, can just maintain and change the spring steel sheet, to centralizer reuse, further practiced thrift manufacturing cost.

Drawings

FIG. 1 is a schematic structural view of a nylon slider centralizer of the present invention without a nylon slider;

fig. 2 is the utility model relates to a nylon sliding block's in nylon sliding block centralizer schematic structure diagram.

In the figure, 1-a centralizer body, 2-an upper fixed disk, 3-a lower fixed disk, 4-a nylon sliding block, 5-a clamping piece, 6-a fixed hole, 7-a through hole and 8-a spring.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The utility model discloses a nylon slider centralizer, as shown in figure 1, including centralizer body 1, centralizer body 1 is the cylinder, and inside cavity, and 1 upper surface of centralizer body is fixed and is provided with upper fixed disk 2, and 1 lower fixed surface of centralizer body is fixed and is provided with down fixed disk 3, and 1 even interval in surface of centralizer body is provided with a plurality of cassettes, all is provided with nylon slider 4 in the middle of every cassette, nylon slider 4 and cassette fixed connection. The cassette includes two structure size cards 5 that equal, and two cards 5 symmetry sets up, and perpendicular welding is on 1 surface of centralizer body. Preferably, the card 5 is an isosceles trapezoid, and the bottom edge of the isosceles trapezoid is connected with the centralizer main body. Two 5 middle parts of card correspond and have been seted up fixed orifices 6, and through-hole 7 has been seted up at 4 middle parts of nylon slider, and through-hole 7 runs through nylon slider 4, and through-hole 7 and fixed orifices 6 set up relatively, and nylon slider 4 passes through bolt assembly and two adjacent 5 fixed connection of cards, and bolt assembly is screw rod and nut, and the screw rod setting is in through-hole 7, and the nut is passed through at the both ends of screw rod and is fixed on 5 surfaces of card.

As shown in fig. 2, the nylon slider 4 is boat-shaped, and the curved surface of the nylon slider 4 is far away from the centralizer body 1. The inner surface of the nylon sliding block 4 is provided with a plurality of circular grooves, the circular grooves are internally and fixedly provided with springs 8, and the springs 8 are abutted to the centralizer body 1. Two circular grooves are arranged on the inner surface of the nylon sliding block 4. Further preferably, 6 nylon sliders 4 are provided.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. The utility model provides a nylon slider centralizer which characterized in that: including the centralizer body, the centralizer body is the cylinder, and inside cavity, fixed surface is provided with the upper fixed disk on the centralizer body, fixed surface is provided with down the fixed disk under the centralizer body, the even interval in centralizer body surface is provided with a plurality of cassettes, every all be provided with the nylon sliding block in the middle of the cassette, nylon sliding block and cassette fixed connection.

2. The nylon slider centralizer of claim 1, wherein: the clamping seat comprises two clamping pieces with the same structure size, the two clamping pieces are symmetrically arranged and vertically welded on the surface of the centralizer body.

3. The nylon slider centralizer of claim 2, wherein: the card is isosceles trapezoid.

4. A nylon slide centralizer as claimed in claim 2 or 3, wherein: the fixing holes are correspondingly formed in the middle of the clamping pieces, the through holes are formed in the middle of the nylon sliding blocks, the through holes and the fixing holes are oppositely formed, and the nylon sliding blocks are fixedly connected with the two adjacent clamping pieces through bolt assemblies.

5. The nylon slider centralizer of claim 4, wherein: the nylon sliding block is ship-shaped, and the curved surface of the nylon sliding block is far away from the centralizer body.

6. The nylon slider centralizer of claim 5, wherein: the nylon slider internal surface is provided with a plurality of circular recesses, the circular recess internal fixation is provided with the spring, the spring offsets with the centralizer body.

7. The nylon slider centralizer of claim 6, wherein: two circular grooves are formed in the inner surface of the nylon sliding block.

8. The nylon slider centralizer of claim 7, wherein: the nylon sliding blocks are provided with 6 nylon sliding blocks.