CN101520119B - 同心双层油管 - Google Patents
同心双层油管 Download PDFInfo
- Publication number
- CN101520119B CN101520119B CN2009100204934A CN200910020493A CN101520119B CN 101520119 B CN101520119 B CN 101520119B CN 2009100204934 A CN2009100204934 A CN 2009100204934A CN 200910020493 A CN200910020493 A CN 200910020493A CN 101520119 B CN101520119 B CN 101520119B
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- CN
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- Prior art keywords
- oil pipe
- box cupling
- oil
- layer oil
- cover
- 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.)
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Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009100204934A CN101520119B (zh) | 2009-04-10 | 2009-04-10 | 同心双层油管 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009100204934A CN101520119B (zh) | 2009-04-10 | 2009-04-10 | 同心双层油管 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101520119A CN101520119A (zh) | 2009-09-02 |
CN101520119B true CN101520119B (zh) | 2011-02-16 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2009100204934A Expired - Fee Related CN101520119B (zh) | 2009-04-10 | 2009-04-10 | 同心双层油管 |
Country Status (1)
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CN (1) | CN101520119B (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102338247A (zh) * | 2011-09-02 | 2012-02-01 | 杭州前进齿轮箱集团股份有限公司 | 一种可调桨内油管连接与支撑组合装置 |
US9254470B1 (en) * | 2014-10-10 | 2016-02-09 | Rec Silicon Inc | Segmented liner and transition support ring for use in a fluidized bed reactor |
CN104832110B (zh) * | 2015-05-15 | 2017-03-01 | 中国石油集团渤海钻探工程有限公司 | 双层连续油管的分流连接器 |
CN105114048B (zh) * | 2015-08-17 | 2017-10-13 | 中国石油大学(华东) | 一种水平井分段压裂同井注采采油方法 |
CN106321009B (zh) * | 2016-09-14 | 2019-02-15 | 中国石油天然气股份有限公司 | 一种用于同心双层油管分注的双通道封隔器 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4063757A (en) * | 1975-09-12 | 1977-12-20 | Kabel-Und Metallwerke Gutehoffnungshutte Ag | Fitting for conduits with corrugated tubes and hoses |
WO1998044285A1 (en) * | 1997-04-01 | 1998-10-08 | Perfection Corporation | Gas riser with free rotating plastic riser casing |
EP1312849A2 (en) * | 2001-11-19 | 2003-05-21 | RE-FLEX S.r.l. | Tube for coupling linen washing and dish washing machines to a central water system |
CN201074707Y (zh) * | 2007-01-08 | 2008-06-18 | 张征年 | 多壁层间中空塑料保温、保冷管道 |
CN201259067Y (zh) * | 2007-12-28 | 2009-06-17 | 胜利油田利威石油技术有限公司 | 内加厚隔热油管 |
-
2009
- 2009-04-10 CN CN2009100204934A patent/CN101520119B/zh not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4063757A (en) * | 1975-09-12 | 1977-12-20 | Kabel-Und Metallwerke Gutehoffnungshutte Ag | Fitting for conduits with corrugated tubes and hoses |
WO1998044285A1 (en) * | 1997-04-01 | 1998-10-08 | Perfection Corporation | Gas riser with free rotating plastic riser casing |
EP1312849A2 (en) * | 2001-11-19 | 2003-05-21 | RE-FLEX S.r.l. | Tube for coupling linen washing and dish washing machines to a central water system |
CN201074707Y (zh) * | 2007-01-08 | 2008-06-18 | 张征年 | 多壁层间中空塑料保温、保冷管道 |
CN201259067Y (zh) * | 2007-12-28 | 2009-06-17 | 胜利油田利威石油技术有限公司 | 内加厚隔热油管 |
Also Published As
Publication number | Publication date |
---|---|
CN101520119A (zh) | 2009-09-02 |
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Legal Events
Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C53 | Correction of patent for invention or patent application | ||
CB03 | Change of inventor or designer information |
Inventor after: Li Hengqing Inventor after: Li Zhaomin Inventor after: Yang Shaochun Inventor after: Zhang Zonglin Inventor after: Dong Fusheng Inventor before: Li Hengqing Inventor before: Li Zhaomin Inventor before: Dong Fusheng |
|
COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LI HENGQING LI ZHAOMIN DONG FUSHENG TO: LI HENGQING LI ZHAOMIN YANG SHAOCHUN ZHANG ZONGLIN DONG FUSHENG |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA) Free format text: FORMER OWNER: LI HENGQING Effective date: 20110314 Free format text: FORMER OWNER: LI ZHAOMIN |
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C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 257022 YUJING GARDEN, HUANGHE ROAD, DONGYING DISTRICT, DONGYING CITY, SHANDONG PROVINCE TO: 257061 NO. 271, BEIER ROAD, DONGYING CITY, SHANDONG PROVINCE |
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TR01 | Transfer of patent right |
Effective date of registration: 20110314 Address after: Two Shandong Province, Dongying City Road 257061 No. 271 Patentee after: China Petroleum University (East China) Address before: The Yellow River road race 257022 in Shandong province Dongying City Garden District of Dongying Co-patentee before: Li Zhaomin Patentee before: Li Hengqing |
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C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20130410 |