CN209293790U - 一种取心器控制电路及旋转式井壁取心器 - Google Patents
一种取心器控制电路及旋转式井壁取心器 Download PDFInfo
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Effective date of registration: 20220225 Address after: 100028 Chaoyang District, Beijing Hui Xin Street 6, Twelfth level. Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: Sinopec Jingwei Co.,Ltd. Patentee after: SINOPEC ZHONGYUAN PETROLEUM ENGINEERING Co.,Ltd. Patentee after: Zhongyuan measurement and control company of Sinopec Jingwei Co.,Ltd. Address before: 100028 Chaoyang District, Beijing Hui Xin Street 6, Twelfth level. Patentee before: SINOPEC OILFIELD SERVICE Corp. Patentee before: SINOPEC ZHONGYUAN PETROLEUM ENGINEERING Co.,Ltd. Patentee before: PHYSICAL GEOGRAPHY LOGGING COMPANY OF SINOPEC ZHONGYUAN PETROLEUM ENGINEERING CO.,LTD. |