CN207315251U - 一种大过流面积防磨扶正器 - Google Patents
一种大过流面积防磨扶正器 Download PDFInfo
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- CN207315251U CN207315251U CN201721352180.5U CN201721352180U CN207315251U CN 207315251 U CN207315251 U CN 207315251U CN 201721352180 U CN201721352180 U CN 201721352180U CN 207315251 U CN207315251 U CN 207315251U
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- 238000005520 cutting process Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 6
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 4
- 239000010432 diamond Substances 0.000 claims abstract description 4
- 239000004677 Nylon Substances 0.000 abstract description 6
- 229920001778 nylon Polymers 0.000 abstract description 6
- 239000003245 coal Substances 0.000 description 8
- 238000005553 drilling Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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Abstract
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Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201721352180.5U CN207315251U (zh) | 2017-10-19 | 2017-10-19 | 一种大过流面积防磨扶正器 |
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CN201721352180.5U CN207315251U (zh) | 2017-10-19 | 2017-10-19 | 一种大过流面积防磨扶正器 |
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CN207315251U true CN207315251U (zh) | 2018-05-04 |
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CN201721352180.5U Expired - Fee Related CN207315251U (zh) | 2017-10-19 | 2017-10-19 | 一种大过流面积防磨扶正器 |
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CN (1) | CN207315251U (zh) |
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2017
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20211116 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: China Petroleum Tianjin building Bohai Drilling Engineering Co., Ltd., No. 83, Second Street, economic and Technological Development Zone, Binhai New Area, Tianjin, 300457 Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180504 |