CN205654308U - Bow -shaped spring -backed quill centralizer - Google Patents
Bow -shaped spring -backed quill centralizer Download PDFInfo
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- CN205654308U CN205654308U CN201620519240.7U CN201620519240U CN205654308U CN 205654308 U CN205654308 U CN 205654308U CN 201620519240 U CN201620519240 U CN 201620519240U CN 205654308 U CN205654308 U CN 205654308U
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Abstract
The utility model discloses a bow -shaped 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 work gusset is made by the elastic steel sheet of arc, the quantity of work gusset be the even numbers strip, and central line that the arc peak of two adjacent work gussets used work gusset length direction is benchmark crisscross setting from top to bottom. The utility model discloses simple structure, it is convenient to realize, has reduced this bow -shaped spring -backed quill centralizer's entering power, 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
Technical field
This utility model belongs to oil recovery cementing technology field, is specifically related to a kind of arcuate resilient casing centering
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, and the entrance power of needs is big, again
Virial is inadequate, and when causing cementing the well, sleeve pipe is inadequate at well centralizer, drops end cementing quality, and bias is the biggest
Time can cause 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, to carry
For a kind of arcuate resilient casing stabbing board, its simple in construction, it is achieved convenient, reduce this arcuate resilient
The entrance power of casing stabbing board, increases the reset force of spring-backed quill centralizer, and casing centering is effective,
Cementing 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 arcuate resilient set
Pipe centralizer, including top ring, lower loop and a plurality of work being connected between top ring and lower loop
Making gusset, described work gusset is made up of the elastic steel sheet of circular arc, and the quantity of described work gusset is
Even numbers bar, the arc peak of adjacent two work gussets with the centrage of work gusset length direction is
Benchmark is crisscross arranged up and down.
Above-mentioned a kind of arcuate resilient casing stabbing board, it is characterised in that: described top ring, a plurality of work
Make muscle and lower loop is monolithic construction.
Above-mentioned a kind of arcuate resilient casing stabbing board, it is characterised in that: the top edge of described top ring
Being provided with guiding tooth limit, the lower limb of described lower loop is provided with lower guiding tooth limit.
Above-mentioned a kind of arcuate resilient casing stabbing board, it is characterised in that: in adjacent two work gussets
Wherein the arc peak of a work gusset is positioned at the top of centrage of work gusset length direction,
And and work gusset length direction centrage between distance be 50mm～100mm；Adjacent two works
Make the arc peak of another work gusset in gusset and be positioned at the centrage of work gusset length direction
Lower section, and and work gusset length direction centrage between distance be 50mm～100mm.
Above-mentioned a kind of arcuate resilient casing stabbing board, it is characterised in that: adjacent two work gussets
Distance between arc peak with the centrage of work gusset length direction is equal.
Above-mentioned a kind of arcuate resilient casing stabbing board, it is characterised in that: in adjacent two work gussets
The upper end that arc peak is positioned at the work gusset above the centrage of work gusset length direction is narrow, under
End width；Under in adjacent two work gussets, arc peak is positioned at the centrage of work gusset length direction
The upper end width of the work gusset of side, lower end is narrow.
Above-mentioned a kind of arcuate resilient casing stabbing board, it is characterised in that: the quantity of described work gusset
It it is 4～12.
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 by interlocking the arc peak of adjacent two work gussets one on the other
Arrange, it is possible to reducing the entrance power of this arcuate resilient casing stabbing board, casing centering is effective, well cementation
Quality is high.
3, this utility model narrows, away from arc by will be close to the work gusset of arc peak one end
The work gusset of shape peak one end broadens, it is possible to reduce this arcuate resilient casing stabbing board further
Entrance power, increases the reset force of this arcuate resilient casing stabbing board, and casing centering is effective, matter of cementing the well
Amount height.
4, this utility model can efficiently reduce cement the well unsuccessfully, the generation of the accident such as 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, reduces this arcuate resilient sleeve pipe
The entrance power of centralizer, increases the reset force of spring-backed quill centralizer, and casing centering is effective, Gu
Well 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.
Fig. 3 is the structural representation of this utility model embodiment 3.
Fig. 4 is the structural representation of this utility model embodiment 4.
Description of reference numerals:
1 top ring；2 work gussets；3 lower loops；
Guide tooth limit 4 times；Tooth limit is guided on 5.
Detailed description of the invention
Embodiment 1
As it is shown in figure 1, the arcuate resilient casing stabbing board of the present embodiment, including top ring 1, lower loop
3 and a plurality of work gusset 2 that is connected between top ring 1 and lower loop 3, described work gusset 2
Being made up of the elastic steel sheet of circular arc, the quantity of described work gusset 2 is even numbers bar, adjacent two works
Make that the arc peak of gusset 2 is staggered up and down on the basis of the centrage of work gusset 2 length direction to be set
Put.
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, a wherein work gusset in adjacent two work gussets 2
The arc peak of 2 is positioned at the top of the centrage of work gusset 2 length direction, and with work gusset
Distance between the centrage of 2 length directions is 50mm～100mm；In adjacent two work gussets 2
The arc peak of another work gusset 2 is positioned under the centrage of work gusset 2 length direction
Side, and and work gusset 2 length direction centrage between distance be 50mm～100mm.
As it is shown in figure 1, in the present embodiment, the arc peak of adjacent two work gussets 2 and work
Distance between the centrage of gusset 2 length direction is equal.
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.
By the arc peak of adjacent two work gussets 2 is crisscross arranged one on the other, it is possible to subtract
The entrance power of this arcuate resilient casing stabbing board little, casing centering is effective, and cementing quality is high, it is possible to
Efficiently reduce cement the well unsuccessfully, the generation of the accident such as well head subscription rate.
Embodiment 2
As in figure 2 it is shown, the present embodiment is as different from Example 1: arc in adjacent two work gussets 2
The upper end that peak is positioned at the work gusset 2 above the centrage of work gusset 2 length direction is narrow, lower end
Wide；Under in adjacent two work gussets 2, arc peak is positioned at the centrage of work gusset 2 length direction
The upper end width of the work gusset 2 of side, lower end is narrow.Remaining structure is the most same as in Example 1.By leaning on
The work gusset 2 of nearly arc peak one end narrows, and the work gusset 2 away from arc peak one end becomes
Wide, it is possible to reduce the entrance power of this arcuate resilient casing stabbing board further, increase this arcuate resilient set
The reset force of pipe centralizer, casing centering is effective, and cementing quality is high, it is possible to efficiently reduce well cementation
The generation of the accidents such as failure, well head subscription rate.
Embodiment 3
As it is shown on figure 3, the present embodiment is as different from Example 1: the top edge of described top ring 1
Being provided with guiding tooth limit 1, the lower limb of described lower loop 3 is provided with lower guiding tooth limit 4.Remaining
Structure is the most same as in Example 1.Upper guiding tooth limit 5 and the setting on lower guiding tooth limit 4, it is possible to make
This arcuate resilient casing stabbing board more successfully moves upward or moves downward, and ensure that righting
Effect.
By the arc peak of adjacent two work gussets 2 is crisscross arranged one on the other, it is possible to subtract
The entrance power of this arcuate resilient casing stabbing board little, casing centering is effective, and cementing quality is high, it is possible to
Efficiently reduce cement the well unsuccessfully, the generation of the accident such as well head subscription rate.
Embodiment 4
As shown in Figure 4, the present embodiment is as different from Example 3: arc in adjacent two work gussets 2
The upper end that peak is positioned at the work gusset 2 above the centrage of work gusset 2 length direction is narrow, lower end
Wide；Under in adjacent two work gussets 2, arc peak is positioned at the centrage of work gusset 2 length direction
The upper end width of the work gusset 2 of side, lower end is narrow.Remaining structure is the most same as in Example 3.By leaning on
The work gusset 2 of nearly arc peak one end narrows, and the work gusset 2 away from arc peak one end becomes
Wide, it is possible to reduce the entrance power of this arcuate resilient casing stabbing board further, increase this arcuate resilient set
The reset force of pipe centralizer, casing centering is effective, and cementing quality is high, it is possible to efficiently reduce well cementation
The generation of the accidents such as failure, well head subscription rate.
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 (7)
1. an arcuate resilient casing stabbing board, including top ring (1), lower loop (3) and company
The a plurality of work gusset (2) being connected between top ring (1) and lower loop (3), it is characterised in that:
Described work gusset (2) is made up of the elastic steel sheet of circular arc, the quantity of described work gusset (2)
For even numbers bar, the arc peak of adjacent two work gusset (2) is with gusset (2) the length side that works
To centrage on the basis of be crisscross arranged up and down.
2. according to a kind of arcuate resilient casing stabbing board described in claim 1, it is characterised in that: institute
Stating top ring (1), a plurality of work muscle (2) and lower loop (3) is monolithic construction.
3. according to a kind of arcuate resilient casing stabbing board described in claim 1, it is characterised in that: institute
The top edge stating top ring (1) is provided with guiding tooth limit (5), under described lower loop (3)
Edge is provided with lower guiding tooth limit (4).
4. according to a kind of arcuate resilient casing stabbing board described in Claims 2 or 3, it is characterised in that:
In adjacent two work gusset (2), wherein the arc peak of job gusset (2) is positioned at work
The top of the centrage of gusset (2) length direction, and with work gusset (2) length direction center
Distance between line is 50mm～100mm；Another work gusset in adjacent two work gusset (2)
(2) arc peak is positioned at the lower section of the centrage of work gusset (2) length direction, and and work
Making the distance between the centrage of gusset (2) length direction is 50mm～100mm.
5. according to a kind of arcuate resilient casing stabbing board described in claim 4, it is characterised in that: phase
The centrage of the arc peak of adjacent two work gussets (2) and work gusset (2) length direction it
Between distance equal.
6. according to a kind of arcuate resilient casing stabbing board described in claim 4, it is characterised in that: phase
In adjacent two work gusset (2), arc peak is positioned at the centrage of work gusset (2) length direction
The upper end of the work gusset (2) of top is narrow, lower end width；Arc in adjacent two work gusset (2)
Peak is positioned at the upper end of the work gusset (2) below the centrage of work gusset (2) length direction
Width, lower end is narrow.
7. according to a kind of arcuate resilient casing stabbing board described in Claims 2 or 3, it is characterised in that:
The quantity of described work gusset (2) is 4～12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620519240.7U CN205654308U (en) | 2016-05-31 | 2016-05-31 | Bow -shaped spring -backed quill centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620519240.7U CN205654308U (en) | 2016-05-31 | 2016-05-31 | Bow -shaped spring -backed quill centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205654308U true CN205654308U (en) | 2016-10-19 |
Family
ID=57404846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620519240.7U Active CN205654308U (en) | 2016-05-31 | 2016-05-31 | Bow -shaped spring -backed quill centralizer |
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| CN (1) | CN205654308U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252828A (en) * | 2017-07-13 | 2019-01-22 | 中国石油天然气股份有限公司 | Well cementation method for highly deviated well |
| CN110043199A (en) * | 2019-04-22 | 2019-07-23 | 陕西纽兰德实业有限公司 | A kind of centralizer |
| CN115427658A (en) * | 2021-03-24 | 2022-12-02 | 道恩浩尔产品有限公司 | Rigidity-variable centralizer |
-
2016
- 2016-05-31 CN CN201620519240.7U patent/CN205654308U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252828A (en) * | 2017-07-13 | 2019-01-22 | 中国石油天然气股份有限公司 | Well cementation method for highly deviated well |
| CN109252828B (en) * | 2017-07-13 | 2022-02-01 | 中国石油天然气股份有限公司 | Well cementation method for highly deviated well |
| CN110043199A (en) * | 2019-04-22 | 2019-07-23 | 陕西纽兰德实业有限公司 | A kind of centralizer |
| WO2020215534A1 (en) * | 2019-04-22 | 2020-10-29 | 陕西纽兰德实业有限公司 | Centralizer |
| CN115427658A (en) * | 2021-03-24 | 2022-12-02 | 道恩浩尔产品有限公司 | Rigidity-variable centralizer |
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| GR01 | Patent grant |