CN203925290U - 具有球面冠部轮廓的双心扩眼钻头 - Google Patents
具有球面冠部轮廓的双心扩眼钻头 Download PDFInfo
- Publication number
- CN203925290U CN203925290U CN201420075509.8U CN201420075509U CN203925290U CN 203925290 U CN203925290 U CN 203925290U CN 201420075509 U CN201420075509 U CN 201420075509U CN 203925290 U CN203925290 U CN 203925290U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- crown profile
- sphere
- neck eye
- diplocardia
- 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.)
- Expired - Lifetime
Links
- 241001468684 Diplocardia Species 0.000 title claims abstract description 31
- 238000005553 drilling Methods 0.000 claims abstract description 15
- 230000036346 tooth eruption Effects 0.000 abstract description 21
- 239000011435 rock Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 239000004744 fabric Substances 0.000 description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
Description
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420075509.8U CN203925290U (zh) | 2014-02-21 | 2014-02-21 | 具有球面冠部轮廓的双心扩眼钻头 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420075509.8U CN203925290U (zh) | 2014-02-21 | 2014-02-21 | 具有球面冠部轮廓的双心扩眼钻头 |
Publications (1)
Publication Number | Publication Date |
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CN203925290U true CN203925290U (zh) | 2014-11-05 |
Family
ID=51821119
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201420075509.8U Expired - Lifetime CN203925290U (zh) | 2014-02-21 | 2014-02-21 | 具有球面冠部轮廓的双心扩眼钻头 |
Country Status (1)
Country | Link |
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CN (1) | CN203925290U (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106812469A (zh) * | 2015-11-27 | 2017-06-09 | 成都百施特金刚石钻头有限公司 | 双心井下扩眼工具体 |
-
2014
- 2014-02-21 CN CN201420075509.8U patent/CN203925290U/zh not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106812469A (zh) * | 2015-11-27 | 2017-06-09 | 成都百施特金刚石钻头有限公司 | 双心井下扩眼工具体 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SICHUAN CHUANSHI CHRIDA DIAMOND BIT CO.,LTD. Assignor: Southwest Petroleum University Contract record no.: 2015510000082 Denomination of utility model: Double-core reaming drill bit with spherical crown part contour Granted publication date: 20141105 License type: Exclusive License Record date: 20150625 |
|
LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20230922 Address after: 610500, Xindu Avenue, Xindu District, Sichuan, Chengdu, 8 Patentee after: SOUTHWEST PETROLEUM University Patentee after: Chengdu Tianrui Canyon Energy Technology Co.,Ltd. Address before: 610500, Xindu Avenue, Xindu District, Sichuan, Chengdu, 8 Patentee before: SOUTHWEST PETROLEUM University Patentee before: SICHUAN CHUANSHI CHRIDA DIAMOND BIT CO.,LTD. |
|
TR01 | Transfer of patent right | ||
CX01 | Expiry of patent term |
Granted publication date: 20141105 |
|
CX01 | Expiry of patent term |