CN201835812U - 用于采油的井下液柱高度无线检测器 - Google Patents
用于采油的井下液柱高度无线检测器 Download PDFInfo
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- CN201835812U CN201835812U CN2010205522382U CN201020552238U CN201835812U CN 201835812 U CN201835812 U CN 201835812U CN 2010205522382 U CN2010205522382 U CN 2010205522382U CN 201020552238 U CN201020552238 U CN 201020552238U CN 201835812 U CN201835812 U CN 201835812U
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- pressure transmitter
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- liquid
- column height
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CN2010205522382U CN201835812U (zh) | 2010-10-08 | 2010-10-08 | 用于采油的井下液柱高度无线检测器 |
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CN2010205522382U CN201835812U (zh) | 2010-10-08 | 2010-10-08 | 用于采油的井下液柱高度无线检测器 |
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CN201835812U true CN201835812U (zh) | 2011-05-18 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013063809A1 (zh) * | 2011-11-05 | 2013-05-10 | 大庆北研石油设备制造有限公司 | 卷扬式提拉采油系统及其抽油绳的制造方法 |
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- 2010-10-08 CN CN2010205522382U patent/CN201835812U/zh not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013063809A1 (zh) * | 2011-11-05 | 2013-05-10 | 大庆北研石油设备制造有限公司 | 卷扬式提拉采油系统及其抽油绳的制造方法 |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Wireless underground fluid column height detector for oil production Effective date of registration: 20130108 Granted publication date: 20110518 Pledgee: Keli technology investment Company limited by guarantee in Heilongjiang Province Pledgor: Daqing Beiyan Petroleum Equipment Manufacturing Co.,Ltd. Registration number: 2012230000031 |
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PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20131120 Granted publication date: 20110518 Pledgee: Keli technology investment Company limited by guarantee in Heilongjiang Province Pledgor: Daqing Beiyan Petroleum Equipment Manufacturing Co.,Ltd. Registration number: 2012230000031 |
|
PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20151008 |
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EXPY | Termination of patent right or utility model |