CN203188935U - Casing centralizer of resistance-reduction spring - Google Patents
Casing centralizer of resistance-reduction spring Download PDFInfo
- Publication number
- CN203188935U CN203188935U CN 201320160987 CN201320160987U CN203188935U CN 203188935 U CN203188935 U CN 203188935U CN 201320160987 CN201320160987 CN 201320160987 CN 201320160987 U CN201320160987 U CN 201320160987U CN 203188935 U CN203188935 U CN 203188935U
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- Prior art keywords
- spring leaf
- spring
- gland
- casing
- roller
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Abstract
The utility model discloses a casing centralizer of a resistance-reduction spring. The casing centralizer of the resistance-reduction spring comprises a spring leaf gland (1), spring leaves (2), rollers (3) and a roller gland (4), the two ends of each spring leaf (2) are fixedly connected with the spring leaf gland (1) in an integrated mode, the rollers (3) which can rotate around the axes are mounted on the spring leaves (2), the roller gland (4) is connected with the spring leaves (2) through welding, the spring leaves (2) are distributed on the spring leaf gland (1) in the circumferential direction at equal intervals, the spring leaf gland (1) is of a circular ring shape, an arc-shaped protrusion is arranged on the middle portion of each spring leaf (2), the two ends of each spring leaf (2) are of the line shapes, and the junctions of the middle portion and the two ends of each spring leaf (2) are of circular arc transition. The rollers which can rotate with the rollers as the axes are mounted on the spring leaves, when the a casing is run into the spring, the friction mode is converted from a sliding friction mode into a rolling friction mode, the friction resistance when the casing is lifted or put down is reduced greatly, and the passing ability and working efficiency of a casing string are improved. Meanwhile, due to the fact that the abrasion of the spring leafs is reduced, the centralizer force to the casing changes little, the centralizer of the casing can be improved, and the well cementation quality of the casing is improved.
Description
Technical field
The utility model relates to a kind of pipe of setting upright, and relates in particular to a kind of drag reduction pogo barrel and sets upright pipe.
Background technology
Existing pogo barrel centralizer, its spring is set upright and is not done any processing on the rib, when entering well sections such as high angle hole, horizontal well, the frictional resistance that is subjected to is bigger, the sleeve pipe that causes cementing the well puts in place under being difficult for, and spring leaf is under the situation of long-term fretting wear, cause easily tear, phenomenon such as fracture, significantly reduce its application life.
The utility model content
The purpose of this utility model is to provide a kind of power of can reducing friction, and improves the drag reduction pogo barrel centralizer in application life, solves the shortcoming that prior art exists.
The utility model adopts following technical scheme to realize:
A kind of drag reduction pogo barrel centralizer comprises spring leaf gland 1, spring leaf 2, roller 3, roller gland 4, fixedlys connected with spring leaf gland 1 one in described spring leaf 2 two ends, it is characterized in that, being equipped with on the described spring leaf 2 can be from the roller 3 of axle rotation.
Further, described roller gland 4 links together with spring leaf 2 by welding, and spring leaf 2 equidistantly distributes along the circumferencial direction of spring leaf gland 1.
Further, described spring leaf gland 1 is circular, and described spring leaf 2 middle parts have circular-arc projection, and the two ends of spring leaf 2 are straight line, the junction arc transition at middle part and two ends.
Further, the quantity of described spring leaf 2 is six.
Further, apply on the described roller 3 and be welded with wear-resisting hard coat.
Further, described spring leaf 2 is connected with spring leaf gland 1 chamfering.
The useful technique effect that the utility model possesses is: being equipped with at spring leaf can be from the roller of axle rotation, be lowered in the process at sleeve pipe, make its friction mode change rolling friction into by sliding friction, thereby significantly reduce and put the frictional resistance of putting on the sleeve pipe, be conducive to improve trafficability characteristic and the operating efficiency of bunch tube by complicated well section.Simultaneously, because the wearing and tearing of spring leaf reduce, the uprighting force of sleeve pipe is changed little, can improve the centralizer of sleeve pipe, improve the casing cementing quality, apply the application life that the carbide alloy wear-resistant coating of weldering has improved this centralizer greatly on the roller.
Description of drawings
Fig. 1 is the stereogram of the utility model drag reduction pogo barrel centralizer.
Fig. 2 is the elevation of the utility model drag reduction pogo barrel centralizer.
The specific embodiment
By following description to embodiment; to help public understanding the utility model more; but can't the specific embodiment that the applicant is given be considered as the restriction to technical solutions of the utility model, any definition to parts or technical characterictic change and/or to overall structure do form but not the conversion of essence all should be considered as the protection domain that the technical solution of the utility model limits.
Drag reduction pogo barrel centralizer of the present utility model comprises spring leaf gland 1, spring leaf 2, roller 3, roller gland 4 as depicted in figs. 1 and 2, fixedlys connected with spring leaf gland 1 one in spring leaf 2 two ends, and being equipped with on the spring leaf 2 can be from the roller 3 of axle rotation.Roller gland 4 links together with spring leaf 2 by welding, spring leaf 2 equidistantly distributes along the circumferencial direction of spring leaf gland 1, spring leaf gland 1 is circular, spring leaf 2 middle parts have circular-arc projection, the two ends of spring leaf 2 are straight line, and the junction arc transition at middle part and two ends, the quantity of spring leaf 2 are six, apply on the roller 3 and be welded with wear-resisting hard coat, spring leaf 2 is connected with spring leaf gland 1 chamfering.Being equipped with at spring leaf can be from the roller of axle rotation, be lowered in the process at sleeve pipe, make its friction mode change rolling friction into by sliding friction, put the frictional resistance of putting on the sleeve pipe thereby significantly reduce, be conducive to improve trafficability characteristic and the operating efficiency of bunch tube by complicated well section.Simultaneously, because the wearing and tearing of spring leaf reduce, the uprighting force of sleeve pipe is changed little, can improve the centralizer of sleeve pipe, improve the casing cementing quality, apply the application life that the carbide alloy wear-resistant coating of weldering has improved this centralizer greatly on the roller.The utility model can also have other alternate embodiments, and as can between adjacent spring leaf 2 strengthening rib strip being set, strengthening rib strip is welded on inboard and/or the outside of spring leaf 2, can further strengthen the overall construction intensity of drag reduction pogo barrel centralizer.
Certainly; the utility model can also have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (6)
1. drag reduction pogo barrel centralizer, comprise spring leaf gland (1), spring leaf (2), roller (3), roller gland (4), fixedly connected with spring leaf gland (1) one in described spring leaf (2) two ends, it is characterized in that being equipped with on the described spring leaf (2) can be from the roller (3) of axle rotation.
2. drag reduction pogo barrel centralizer according to claim 1 is characterized in that, described roller gland (4) links together by the same spring leaf of welding (2), and spring leaf (2) equidistantly distributes along the circumferencial direction of spring leaf gland (1).
3. drag reduction pogo barrel centralizer according to claim 1 and 2, it is characterized in that described spring leaf gland (1) is circular, described spring leaf (2) middle part has circular-arc projection, the two ends of spring leaf (2) are straight line, the junction arc transition at middle part and two ends.
4. drag reduction pogo barrel centralizer according to claim 1 and 2 is characterized in that, the quantity of described spring leaf (2) is six.
5. drag reduction pogo barrel centralizer according to claim 1 and 2 is characterized in that, described roller (3) is gone up to apply and is welded with wear-resisting hard coat.
6. drag reduction pogo barrel centralizer according to claim 1 and 2 is characterized in that, described spring leaf (2) is connected with spring leaf gland (1) chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320160987 CN203188935U (en) | 2013-04-02 | 2013-04-02 | Casing centralizer of resistance-reduction spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320160987 CN203188935U (en) | 2013-04-02 | 2013-04-02 | Casing centralizer of resistance-reduction spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203188935U true CN203188935U (en) | 2013-09-11 |
Family
ID=49105801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320160987 Expired - Fee Related CN203188935U (en) | 2013-04-02 | 2013-04-02 | Casing centralizer of resistance-reduction spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203188935U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107083935A (en) * | 2017-06-30 | 2017-08-22 | 长江大学 | A kind of electric drive spiral batch-type downhole tractor |
| CN109506554A (en) * | 2018-09-26 | 2019-03-22 | 天津建岩岩土工程有限公司 | Prefabricated hollow shell pill verticality measurement device and its measurement method |
| CN111441731A (en) * | 2020-04-17 | 2020-07-24 | 四川省科学城久利电子有限责任公司 | Multi-wheel centralizer |
| RU2731723C1 (en) * | 2020-05-28 | 2020-09-08 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Casing string centralizer for its rotation during cementing |
| CN116624109A (en) * | 2023-07-25 | 2023-08-22 | 成都阿斯贝瑞科技有限公司 | Multi-pitching variable-diameter hydraulic centralizer |
-
2013
- 2013-04-02 CN CN 201320160987 patent/CN203188935U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107083935A (en) * | 2017-06-30 | 2017-08-22 | 长江大学 | A kind of electric drive spiral batch-type downhole tractor |
| CN107083935B (en) * | 2017-06-30 | 2022-12-13 | 国网湖北省电力有限公司荆州供电公司 | Electrically-driven spiral intermittent underground tractor |
| CN109506554A (en) * | 2018-09-26 | 2019-03-22 | 天津建岩岩土工程有限公司 | Prefabricated hollow shell pill verticality measurement device and its measurement method |
| CN111441731A (en) * | 2020-04-17 | 2020-07-24 | 四川省科学城久利电子有限责任公司 | Multi-wheel centralizer |
| RU2731723C1 (en) * | 2020-05-28 | 2020-09-08 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Casing string centralizer for its rotation during cementing |
| CN116624109A (en) * | 2023-07-25 | 2023-08-22 | 成都阿斯贝瑞科技有限公司 | Multi-pitching variable-diameter hydraulic centralizer |
| CN116624109B (en) * | 2023-07-25 | 2023-09-19 | 成都阿斯贝瑞科技有限公司 | Multi-pitching variable-diameter hydraulic centralizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610031 Sichuan city of Chengdu province Chenghua District Bay, No. 66 Patentee after: CHENGDU EN-SHAIN TECHNOLOGY Inc. Address before: 610031 Sichuan city of Chengdu province Chenghua District Bay, No. 66 Patentee before: CHENGDU EN-SHINE OIL & GAS Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |