CN204552637U - A kind of spring-backed quill centralizer - Google Patents
A kind of spring-backed quill centralizer Download PDFInfo
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- CN204552637U CN204552637U CN201520243358.7U CN201520243358U CN204552637U CN 204552637 U CN204552637 U CN 204552637U CN 201520243358 U CN201520243358 U CN 201520243358U CN 204552637 U CN204552637 U CN 204552637U
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- gusset
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- backed quill
- centralizer
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Abstract
The utility model discloses a kind of spring-backed quill centralizer, described spring-backed quill centralizer comprises top ring, lower loop and is connected to many work gussets between top ring and lower loop, and the both sides of the gusset that works described in every bar are provided with at least one and the work gusset integrated gusset limit wing.The utility model structure is simple, and it is convenient to realize, and flexible and convenient to use, increase the reset force of spring-backed quill centralizer, casing centering is effective, and cementing quality is high, practical, is convenient to promote the use of.
Description
Technical field
The utility model belongs to oil recovery cementing technology field, is specifically related to a kind of spring-backed quill centralizer.
Background technology
Sleeve pipe centralizer is in the wellbore one of decisive factor of oil gas well cementing operation quality, and centralizer to lay be casing centralization whether basis, centralizer be for sleeve pipe righting, ensure the parts of set of tubes concentricity in the wellbore.The performance of dissimilar centralizer has different impacts on entering under sleeve pipe with final centralizer, the easy produced problem of current centralizer is that centralizer gusset support force is inadequate, when causing cementing the well, sleeve pipe is inadequate at well centralizer, end cementing quality falls, can cause when bias is too large 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, a kind of spring-backed quill centralizer is provided, its structure is simple, it is convenient, flexible and convenient to use to realize, and increases the reset force of spring-backed quill centralizer, casing centering is effective, cementing quality is high, practical, is convenient to promote the use of.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of spring-backed quill centralizer, described spring-backed quill centralizer comprises top ring, lower loop and is connected to many work gussets between top ring and lower loop, it is characterized in that: the both sides of the gusset that works described in every bar are provided with at least one and the work gusset integrated gusset limit wing.
Above-mentioned a kind of spring-backed quill centralizer, it is characterized in that: described top ring, many work muscle and lower loop are split-type structural, the upper through hole that the upper end described top ring being evenly provided with multiple confession many work muscle snaps in, the lower through-hole that the lower end described lower loop being evenly provided with multiple confession many work muscle snaps in.
Above-mentioned a kind of spring-backed quill centralizer, is characterized in that: described top ring, many work muscle and lower loop are monolithic construction.
Above-mentioned a kind of spring-backed quill centralizer, is characterized in that: the top edge of described top ring 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 spring-backed quill centralizer, is characterized in that: the shape of the described gusset limit wing is trapezoidal, rectangle or circular arc.
Above-mentioned a kind of spring-backed quill centralizer, is characterized in that: the quantity of the gusset limit wing of described work gusset side is 1 ~ 5.
The utility model compared with prior art has the following advantages:
1, the utility model structure is simple, rationally novel in design, and it is convenient to realize.
2, the utility model is by arranging the gusset limit wing in the both sides of work gusset, puts centralizer problem during well head into, improve cementing quality under efficiently solving sleeve pipe; And what reduce that sleeve pipe and spring-backed quill centralizer enter well head enters power, spring-backed quill centralizer enter well head make work gusset compressive deformation time, the gusset limit wing can be against on inner sleeve outer wall, the support force of work gusset is increased with this, increase the reset force of spring-backed quill centralizer, fixing firm.
3, when the utility model uses, can according to actual user demand, the quantity of the gusset limit wing of adjustment work gusset both sides, changes the reset force size of spring-backed quill centralizer, flexible and convenient to use.
4, casing centering of the present utility model is effective, and cementing quality is high, can effectively reduce cement the well unsuccessfully, the generation of the accident such as well head subscription rate, practical, be convenient to promote the use of.
In sum, the utility model structure is simple, and it is convenient to realize, and flexible and convenient to use, increase the reset force of spring-backed quill centralizer, casing centering is effective, and cementing quality is high, practical, is convenient to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the structural representation of the utility model embodiment 2.
Fig. 3 is the structural representation of the utility model embodiment 3.
Fig. 4 is the structural representation of the utility model embodiment 4.
Fig. 5 is the structural representation of the utility model embodiment 5.
Fig. 6 is the structural representation of the utility model embodiment 6.
Fig. 7 is the structural representation of the utility model embodiment 7.
Description of reference numerals:
1-top ring; 2-work gusset; 3-lower loop;
4-gusset limit wing; 5-upper through hole; 6-lower through-hole;
7-tooth limit of above leading; 8-lower guiding tooth limit.
Detailed description of the invention
Embodiment 1
As shown in Figure 1, spring-backed quill centralizer of the present utility model, described spring-backed quill centralizer comprises top ring 1, lower loop 3 and is connected to many work gussets 2 between top ring 1 and lower loop 3, and the both sides of the gusset 2 that works described in every bar are provided with at least one and the work gusset 2 integrated gusset limit wing 4.
As shown in Figure 1, in the present embodiment, described top ring 1, many work muscle 2 and lower loop 3 are split-type structural, the upper through hole 5 that the upper end described top ring 1 being evenly provided with multiple confession many work muscle 2 snaps in, the lower through-hole 6 that the lower end described lower loop 3 being evenly provided with multiple confession many work muscle 2 snaps in.
As shown in Figure 1, in the present embodiment, the shape of the described gusset limit wing 4 is trapezoidal.The quantity of the gusset limit wing 4 of both sides of gusset 2 of working described in every bar is 1.The gusset limit wing 4 of gusset 2 both sides of working described in every bar is all symmetrical arranged.
Embodiment 2
As shown in Figure 2, the present embodiment as different from Example 1: described top ring 1, many work muscle 2 and lower loop 3 are monolithic construction.All the other structures are all identical with embodiment 1.The spring-backed quill centralizer of this kind of monolithic construction, bulk strength and performance are greatly improved than embodiment 1.
Embodiment 3
As shown in Figure 3, the present embodiment as different from Example 2: the top edge of described top ring 1 is provided with guiding tooth limit 7, and the lower limb of described lower loop 3 is provided with lower guiding tooth limit 8.All the other structures are all identical with embodiment 2.The setting on upper guiding tooth limit 7 and lower guiding tooth limit 8, can make spring-backed quill centralizer more successfully move upward or move downward, and can ensure righting effect.
Embodiment 4
As shown in Figure 4, the present embodiment as different from Example 3: the shape of the described gusset limit wing 4 is circular arc.All the other structures are all identical with embodiment 3.
Embodiment 5
As shown in Figure 5, the present embodiment as different from Example 3: the quantity of the gusset limit wing 4 of described work gusset 2 side is 2 or 3.All the other structures are all identical with embodiment 3.
Embodiment 6
As shown in Figure 6, the present embodiment as different from Example 5: the asymmetric setting of the gusset limit wing 4 of gusset 2 both sides that work described in every bar.All the other structures are all identical with embodiment 5.
Embodiment 7
As shown in Figure 7, the present embodiment as different from Example 3: the shape of the described gusset limit wing 4 is rectangle.The quantity of the gusset limit wing 4 of gusset 2 both sides of working described in every bar is 5.All the other structures are all identical with embodiment 3.
During concrete enforcement, can according to actual user demand, the quantity of the gusset limit wing 4 of adjustment work gusset 2 both sides, changes the reset force size of spring-backed quill centralizer.By arranging the gusset limit wing 4 in the both sides of work gusset 2, putting centralizer problem during well head under efficiently solving sleeve pipe into, improve cementing quality; And what reduce that sleeve pipe and spring-backed quill centralizer enter well head enters power, spring-backed quill centralizer enter well head make work gusset 2 compressive deformation time, the gusset limit wing 4 can be against on inner sleeve outer wall, the support force of work gusset 2 is increased with this, increase the reset force of spring-backed quill centralizer, fixing firm, and the sleeve pipe adapted to is wider general.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solutions of the utility model.
Claims (6)
1. a spring-backed quill centralizer, described spring-backed quill centralizer comprises top ring (1), lower loop (3) and is connected to many work gusset (2) between top ring (1) and lower loop (3), it is characterized in that: the both sides of the gusset (2) that works described in every bar are provided with at least one and work gusset (2) the integrated gusset limit wing (4).
2. according to a kind of spring-backed quill centralizer according to claim 1, it is characterized in that: described top ring (1), many work muscle (2) and lower loop (3) are split-type structural, the upper through hole (5) that the upper end described top ring (1) being evenly provided with multiple confession many work muscle (2) snaps in, the lower through-hole (6) that the lower end described lower loop (3) being evenly provided with multiple confession many work muscle (2) snaps in.
3. according to a kind of spring-backed quill centralizer according to claim 1, it is characterized in that: described top ring (1), many work muscle (2) and lower loop (3) are monolithic construction.
4. according to a kind of spring-backed quill centralizer according to claim 3, it is characterized in that: the top edge of described top ring (1) is provided with guiding tooth limit (7), the lower limb of described lower loop (3) is provided with lower guiding tooth limit (8).
5. according to a kind of spring-backed quill centralizer described in claim 2,3 or 4, it is characterized in that: the shape of the described gusset limit wing (4) is trapezoidal, rectangle or circular arc.
6. according to a kind of spring-backed quill centralizer described in claim 2,3 or 4, it is characterized in that: the quantity on the gusset limit wing (4) of described work gusset (2) side is 1 ~ 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520243358.7U CN204552637U (en) | 2015-04-21 | 2015-04-21 | A kind of spring-backed quill centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520243358.7U CN204552637U (en) | 2015-04-21 | 2015-04-21 | A kind of spring-backed quill centralizer |
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| Publication Number | Publication Date |
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| CN204552637U true CN204552637U (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520243358.7U Active CN204552637U (en) | 2015-04-21 | 2015-04-21 | A kind of spring-backed quill centralizer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043199A (en) * | 2019-04-22 | 2019-07-23 | 陕西纽兰德实业有限公司 | A kind of centralizer |
| WO2020095050A1 (en) * | 2018-11-08 | 2020-05-14 | Vulcan Completion Products Uk Limited | Centraliser |
-
2015
- 2015-04-21 CN CN201520243358.7U patent/CN204552637U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020095050A1 (en) * | 2018-11-08 | 2020-05-14 | Vulcan Completion Products Uk Limited | Centraliser |
| GB2578774A (en) * | 2018-11-08 | 2020-05-27 | Vulcan Completion Products Uk Ltd | Centraliser |
| CN113286931A (en) * | 2018-11-08 | 2021-08-20 | 伏尔甘完全产品英国有限公司 | Centering guide |
| US11555357B2 (en) | 2018-11-08 | 2023-01-17 | Vulcan Completion Products Uk Limited | Centraliser |
| GB2578774B (en) * | 2018-11-08 | 2023-05-10 | Vulcan Completion Products Uk Ltd | Centraliser |
| CN110043199A (en) * | 2019-04-22 | 2019-07-23 | 陕西纽兰德实业有限公司 | A kind of centralizer |
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