CA2315730A1 - Centralizer for sucker rod strings - Google Patents
Centralizer for sucker rod strings Download PDFInfo
- Publication number
- CA2315730A1 CA2315730A1 CA 2315730 CA2315730A CA2315730A1 CA 2315730 A1 CA2315730 A1 CA 2315730A1 CA 2315730 CA2315730 CA 2315730 CA 2315730 A CA2315730 A CA 2315730A CA 2315730 A1 CA2315730 A1 CA 2315730A1
- Authority
- CA
- Canada
- Prior art keywords
- centralizer
- sleeve
- sucker rod
- single piece
- sucker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Earth Drilling (AREA)
Abstract
A centralizer for sucker rod strings is disclosed. The invention has particular use for centralizing sucker rods in a tubing string in connection with a downhole rotary pump driven by a rotating rod string. The single piece, double box centralizer has internally threaded ends for attachment to the threaded pin ends of sucker rod string components. A central shaft portion of the centralizer has a reduced diameter over which a centralizer sleeve is placed. The sleeve is kept in place by shoulders of the larger diameter ends of the centralizer. The centralizer sleeve may be a single piece snap-on type made of a flexible material, or the sleeve can be made up of two or more pieces which snap together.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US36970499A | 1999-08-06 | 1999-08-06 | |
US09/369,704 | 1999-08-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2315730A1 true CA2315730A1 (en) | 2001-02-06 |
CA2315730C CA2315730C (en) | 2006-10-31 |
Family
ID=23456559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2315730 Expired - Lifetime CA2315730C (en) | 1999-08-06 | 2000-08-04 | Centralizer for sucker rod strings |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2315730C (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102031933B (en) * | 2009-09-24 | 2013-03-13 | 江苏宏泰石化机械有限公司 | Serial anti-fall centralizer |
CN103334705A (en) * | 2013-08-01 | 2013-10-02 | 南通奥里斯特机械有限公司 | Novel sucker rod centering device |
CN107630665A (en) * | 2017-06-22 | 2018-01-26 | 泰州市时代科研设备仪器有限公司 | A kind of abrasion-resistant alloy protective pipe connector of oil-pumping rod with guide function |
CN107642339A (en) * | 2017-06-22 | 2018-01-30 | 泰州市时代科研设备仪器有限公司 | Multifunctional pumping rod abrasion-resistant alloy protective pipe connector |
CN108843256A (en) * | 2018-08-14 | 2018-11-20 | 河南福侨石油装备有限公司 | A kind of fixing sucker rod centralizer and preparation method thereof |
WO2021148076A1 (en) * | 2020-01-21 | 2021-07-29 | MTU Aero Engines AG | Method for repairing a sealing-air seal apparatus for a turbomachine |
CN113982502A (en) * | 2021-09-29 | 2022-01-28 | 天津市金升石油机械设备有限公司 | Screw pump wear preventer and manufacturing method thereof |
CN114718509A (en) * | 2021-01-05 | 2022-07-08 | 中国石油天然气股份有限公司 | Wax-proof and scale-proof device for oil well |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010025491A1 (en) | 2010-06-29 | 2011-12-29 | Netzsch-Mohnopumpen Gmbh | Retention device for preventing sedimentation in boreholes |
-
2000
- 2000-08-04 CA CA 2315730 patent/CA2315730C/en not_active Expired - Lifetime
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102031933B (en) * | 2009-09-24 | 2013-03-13 | 江苏宏泰石化机械有限公司 | Serial anti-fall centralizer |
CN103334705A (en) * | 2013-08-01 | 2013-10-02 | 南通奥里斯特机械有限公司 | Novel sucker rod centering device |
CN107630665A (en) * | 2017-06-22 | 2018-01-26 | 泰州市时代科研设备仪器有限公司 | A kind of abrasion-resistant alloy protective pipe connector of oil-pumping rod with guide function |
CN107642339A (en) * | 2017-06-22 | 2018-01-30 | 泰州市时代科研设备仪器有限公司 | Multifunctional pumping rod abrasion-resistant alloy protective pipe connector |
CN108843256A (en) * | 2018-08-14 | 2018-11-20 | 河南福侨石油装备有限公司 | A kind of fixing sucker rod centralizer and preparation method thereof |
WO2021148076A1 (en) * | 2020-01-21 | 2021-07-29 | MTU Aero Engines AG | Method for repairing a sealing-air seal apparatus for a turbomachine |
CN114718509A (en) * | 2021-01-05 | 2022-07-08 | 中国石油天然气股份有限公司 | Wax-proof and scale-proof device for oil well |
CN114718509B (en) * | 2021-01-05 | 2023-11-28 | 中国石油天然气股份有限公司 | Wax-proof and scale-proof device for oil well |
CN113982502A (en) * | 2021-09-29 | 2022-01-28 | 天津市金升石油机械设备有限公司 | Screw pump wear preventer and manufacturing method thereof |
CN113982502B (en) * | 2021-09-29 | 2024-03-29 | 天津市金升石油机械设备有限公司 | Screw pump wear-proof device and manufacturing method thereof |
Also Published As
Publication number | Publication date |
---|---|
CA2315730C (en) | 2006-10-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20200804 |