CN205654309U

CN205654309U - Resistance to deformation spring -backed quill centralizer

Info

Publication number: CN205654309U
Application number: CN201620519321.7U
Authority: CN
Inventors: 王北兴; 张霖
Original assignee: SHAANXI NEWLAND INDUSTRIAL Corp Ltd
Current assignee: SHAANXI NEWLAND INDUSTRIAL Corp Ltd
Priority date: 2016-05-31
Filing date: 2016-05-31
Publication date: 2016-10-19
Anticipated expiration: 2026-05-31

Abstract

The utility model discloses a resistance to deformation spring -backed quill centralizer, including top ring, lower end links and connecting at top ring and many gussets of working between the end links down, the width of work gusset is 60mm~120mm, the work gusset is located to open along length direction's intermediate position has the crack. The utility model discloses simple structure, it is convenient to realize, and it is nimble convenient to use, has avoided the work gusset to warp, has increased the reset force of spring -backed quill centralizer, and the sleeve pipe is right effectually, and the cementing quality is high, and the practicality is strong, convenient to popularize and use.

Description

A kind of resistance to deformation spring-backed quill centralizer

Technical field

This utility model belongs to oil recovery cementing technology field, is specifically related to a kind of resistance to deformation spring-backed quill and holds up Positive device.

Background technology

Sleeve pipe centralizer in the wellbore is one of determiner of oil gas well cementing operation quality, and holds up Positive device is laid and is casing centralization whether basis, and centralizer is the righting for sleeve pipe, ensures sleeve pipe The parts of concentricity in the wellbore.The performance of dissimilar centralizer is to entering under sleeve pipe and final residence Moderate has different impacts, current centralizer easily to problem appear to is that work gusset is yielding, bullet Property casing stabbing board reset force inadequate, when causing well cementation, sleeve pipe is inadequate at well centralizer, and the fall end is solid Well quality, can cause when bias is the biggest cement the well unsuccessfully, the serious consequence such as well head subscription rate.

Utility model content

Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, it is provided that A kind of resistance to deformation spring-backed quill centralizer, its simple in construction, it is achieved convenient, flexible and convenient to use, it is to avoid The deformation of work gusset, increases the reset force of spring-backed quill centralizer, and casing centering is effective, well cementation Quality is high, practical, it is simple to promote the use of.

For solving above-mentioned technical problem, the technical solution adopted in the utility model is: a kind of resistance to deformation is elastic Casing stabbing board, including top ring, lower loop and be connected between top ring and lower loop a plurality of Work gusset, it is characterised in that: the width of described work gusset is 60mm～120mm, described work Gusset middle position along its length has crack.

Above-mentioned a kind of resistance to deformation spring-backed quill centralizer, it is characterised in that: described top ring, a plurality of Work muscle and lower loop are monolithic construction.

Above-mentioned a kind of resistance to deformation spring-backed quill centralizer, it is characterised in that: the top of described top ring Edge is provided with guiding tooth limit, and the lower limb of described lower loop is provided with lower guiding tooth limit.

Above-mentioned a kind of resistance to deformation spring-backed quill centralizer, it is characterised in that: the number of described work gusset Amount is 4～12.

Above-mentioned a kind of resistance to deformation spring-backed quill centralizer, it is characterised in that: the length in described crack with The length of work gusset is equal.

This utility model compared with prior art has the advantage that

1, simple in construction of the present utility model, novel in design reasonable, it is achieved convenient.

2, this utility model is compared with prior art, broadens the width of work gusset, and passes through Work gusset middle position slit along its length, it is to avoid work gusset deformation, greatly increases Having added the reset force of this resistance to deformation spring-backed quill centralizer, casing centering is effective, and cementing quality is high.

3, when this utility model uses, the width of work gusset can according to actually used demand, be adjusted Degree, changes the reset force size of this resistance to deformation spring-backed quill centralizer, flexible and convenient to use.

4, casing centering of the present utility model is effective, and cementing quality is high, it is possible to efficiently reduce solid The generation of the accidents such as well failure, well head subscription rate, practical, it is simple to promote the use of.

In sum, this utility model simple in construction, it is achieved convenient, flexible and convenient to use, it is to avoid Work gusset deformation, increases the reset force of spring-backed quill centralizer, and casing centering is effective, well cementation Quality is high, practical, it is simple to promote the use of.

Below by drawings and Examples, the technical solution of the utility model is done and further retouches in detail State.

Accompanying drawing explanation

Fig. 1 is the structural representation of this utility model embodiment 1.

Fig. 2 is the structural representation of this utility model embodiment 2.

Description of reference numerals:

1 top ring；2 work gussets；3 lower loops；

4 cracks；Tooth limit is guided on 5；Guide tooth limit 6 times.

Detailed description of the invention

Embodiment 1

As it is shown in figure 1, the resistance to deformation spring-backed quill centralizer of the present embodiment, including top ring 1, lower end Ring 3 and a plurality of work gusset 2 being connected between top ring 1 and lower loop 3, described work muscle The width of plate 2 is 60mm～120mm, and described work gusset 2 middle position along its length is opened There is crack 4.

As it is shown in figure 1, in the present embodiment, described top ring 1, a plurality of work muscle 2 and lower loop 3 For monolithic construction.

As it is shown in figure 1, in the present embodiment, the quantity of described work gusset 2 is 4～12, preferably It it is 8.

As it is shown in figure 1, in the present embodiment, the length phase of the length in described crack 4 and work gusset 2 Deng.

Embodiment 2

As in figure 2 it is shown, the present embodiment is as different from Example 1: the top edge of described top ring 1 Being provided with guiding tooth limit 5, the lower limb of described lower loop 3 is provided with lower guiding tooth limit 6.Remaining Structure is the most same as in Example 1.Upper guiding tooth limit 5 and the setting on lower guiding tooth limit 6, it is possible to make This resistance to deformation spring-backed quill centralizer more successfully moves upward or moves downward, and ensure that and hold up Plus effect.

When being embodied as, the width of work gusset 2 according to actually used demand, can be adjusted, change Become the reset force size of this resistance to deformation spring-backed quill centralizer.This utility model compared with prior art, Broaden the width of work gusset 2, and by work gusset 2 middle position along its length Slit 4, it is to avoid work gusset 2 deforms, and this resistance to deformation spring-backed quill centralizer be significantly greatly increased Reset force, casing centering is effective, and cementing quality is high, practical, it is simple to promote the use of.

The above, be only preferred embodiment of the present utility model, not makees this utility model any Limit, every according to this utility model technical spirit, above example is made any simple modification, Change and equivalent structure change, all still fall within the protection domain of technical solutions of the utility model.

Claims

1. a resistance to deformation spring-backed quill centralizer, including top ring (1), lower loop (3) and The a plurality of work gusset (2) being connected between top ring (1) and lower loop (3), its feature exists In: the width of described work gusset (2) is 60mm～120mm, and described work gusset (2) is along long The middle position in degree direction has crack (4).

2. according to a kind of resistance to deformation spring-backed quill centralizer described in claim 1, it is characterised in that: Described top ring (1), a plurality of work muscle (2) and lower loop (3) are monolithic construction.

3. according to a kind of resistance to deformation spring-backed quill centralizer described in claim 1, it is characterised in that: The top edge of described top ring (1) is provided with guiding tooth limit (5), described lower loop (3) Lower limb is provided with lower guiding tooth limit (6).

4., according to a kind of resistance to deformation spring-backed quill centralizer described in Claims 2 or 3, its feature exists In: the quantity of described work gusset (2) is 4～12.

5., according to a kind of resistance to deformation spring-backed quill centralizer described in Claims 2 or 3, its feature exists In: the length of described crack (4) is equal with the length of work gusset (2).