CN210370536U

CN210370536U - Integral centralizer with anti-channeling function

Info

Publication number: CN210370536U
Application number: CN201921112773.3U
Authority: CN
Inventors: 田伟东
Original assignee: Chengdu Dewei Petroleum Technology Service Co ltd
Current assignee: Chengdu Dewei Petroleum Technology Service Co ltd
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-04-21
Anticipated expiration: 2029-07-16

Abstract

The utility model discloses an integral centralizer with prevent scurrying function, including two drums and righting strip, two the drum is the integrated into one piece structure with righting the strip, righting the strip and being provided with four altogether, and four angle distributions such as righting the strip between two drums. In the utility model, the cylinder and the righting strip are integrated into a whole, the righting strip is evenly distributed, the righting strip can realize the support of the maximum lateral force, and the righting function of the tubular column is really realized; the centralizer has the advantages of small starting force and strong elastic restoring force through the reducing well hole, stronger plastic deformation resistance and better support casing after passing through the reducing section.

Description

Integral centralizer with anti-channeling function

Technical Field

The utility model relates to a centralizer technical field especially relates to an integral centralizer with prevent scurrying function.

Background

The centralizer belongs to a well cementing tool, is simple to manufacture, attractive in structure, firm and durable, has large centralizing force, overcomes the defect that the conventional welding type centralizer is easy to be detached from welding, and can ensure the well drilling and cementing quality; the gauge size may be from 31/2in to 20 in; the material may be cast steel, cast aluminum, resin, etc.

The traditional centralizer has many shortcomings in the using process, for example, the shell of the traditional centralizer is usually of a split structure, is easy to scatter, weak in centralizing force and weak in point, and is easy to break and block when being put into a horizontal well section, and the traditional centralizer lacks a locking device, so that the centralizer can move up and down outside a casing, and the reliability is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems that the traditional centralizer is inconvenient to carry and moves up and down outside a casing, the integral centralizer with the anti-moving function is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an integral centralizer with prevent scurrying function, includes two drums and righting strip, two the drum is the integrated into one piece structure with righting strip, righting strip is provided with four altogether, and four righting strips equiangular distribution are between two drums.

As a further description of the above technical solution:

two the inner chamber of drum all is provided with the push pedal, on the interior table wall of drum, and the vertical both ends that are located the push pedal all are connected with the dwang through the pivot rotation.

As a further description of the above technical solution:

the push plate is elastically connected with the inner surface wall of the cylinder through a spring.

As a further description of the above technical solution:

the push plate is movably connected with the rotating rod through a connecting rod.

As a further description of the above technical solution:

a plurality of the end parts of the rotating rods are all connected with clamping plates through rotating shafts.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. in the utility model, the cylinder and the righting strip are integrated into a whole, the righting strip is evenly distributed, the righting strip can realize the support of the maximum lateral force, and the righting function of the tubular column is really realized; the centralizer has small starting force and strong elastic restoring force through the reducing well hole.

2. The utility model discloses in, through the setting of spring, can give thrust of push pedal, through the setting of connecting rod, can make the push pedal make splint step up the sleeve pipe through the dwang, can prevent that the drum from drunkenness about the outside of centralizer, improved stability.

Drawings

Fig. 1 is a schematic structural view of an integral centralizer with a channeling prevention function according to the present invention;

fig. 2 is a schematic structural view of an a-a structure of the integral centralizer with anti-channeling function according to the present invention.

Illustration of the drawings:

1. a cylinder; 2. a righting strip; 3. rotating the rod; 4. a spring; 5. pushing the plate; 6. a connecting rod; 7. and (4) clamping the plate.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, an integral centralizer with anti-channeling function comprises two cylinders 1 and a centralizing strip 2, wherein the two cylinders 1 and the centralizing strip 2 are of an integrally formed structure, the number of the centralizing strips 2 is four, the four centralizing strips 2 are distributed between the two cylinders 1 at equal angles, the plastic deformation resistance of the integrated design is stronger, and the support sleeve can better support after passing through a reducing section.

Specifically, as shown in fig. 2, the inner cavities of the two cylinders 1 are provided with push plates 5, the inner surface walls of the cylinders 1 are provided with rotating rods 3, the rotating rods 3 are rotatably connected to the vertical two ends of the push plates 5 through rotating shafts, and the rotating rods 3 can rotate relative to the inner surface walls of the cylinders 1.

Specifically, as shown in fig. 2, the push plate 5 is elastically connected to the inner surface wall of the cylinder 1 through a spring 4, a telescopic rod for preventing the spring 4 from deviating is arranged inside the spring 4, and the spring 4 gives the push plate 5 an elastic force approaching to the center of the cylinder 1.

Specifically, as shown in fig. 2, the push plate 5 is movably connected to the rotating rod 3 through a connecting rod 6, and the push plate 5 can rotate the rotating rod 3 through the connecting rod 6.

Specifically, as shown in fig. 2, the end portions of the plurality of rotating rods 3 are rotatably connected with a clamping plate 7 through a rotating shaft, and the clamping plate 7 is used for clamping and fixing the sleeve.

The working principle is as follows: the spring 4 gives the push plate 5 an elasticity that is close to the center of the cylinder 1, and the push plate 5 makes the clamping plate 7 clamp the sleeve through the connecting rod 6 and the rotating rod 3, so that the cylinder 1 can be prevented from moving up and down outside the sleeve, and the stability of the centralizer is improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an integral centralizer with prevent scurrying function, includes two drums (1) and rights strip (2), its characterized in that, two drum (1) is the integrated into one piece structure with right strip (2), right strip (2) are provided with four altogether, and four right strip (2) equiangular distribution between two drums (1).

2. The integral type centralizer with anti-channeling function according to claim 1, characterized in that the inner cavities of the two cylinders (1) are provided with push plates (5), and the rotating rods (3) are rotatably connected to the inner surface walls of the cylinders (1) and the two vertical ends of the push plates (5) through rotating shafts.

3. A tamper-proof unitary centralizer according to claim 2, characterised in that the push plate (5) is elastically connected to the inner surface wall of the cylinder (1) by means of a spring (4).

4. An integral centralizer with anti-channeling function according to claim 2, characterized in that the push plate (5) is movably connected with the rotating rod (3) through a connecting rod (6).

5. An integrated stabilizer having a tamper-proof function according to claim 4, wherein a clamp plate (7) is rotatably connected to each end of the plurality of rotating rods (3) through a rotating shaft.