The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 14, 2026
Filed:
Oct. 15, 2021
China Petroleum & Chemical Corporation, Beijing, CN;
Sinopec Petroleum Engineering Technology Service Co., Ltd, Beijing, CN;
Sinopec Shengli Petroleum Engineering Co., Ltd, Dongying, CN;
Sinopec Matrix Corporation, Qingdao, CN;
Geosteering & Logging Research Institute, Sinopec Matrix Corporation, Qingdao, CN;
Luyang Ding, Dongying, CN;
Ningning Yang, Dongying, CN;
Haiquan Tang, Dongying, CN;
Xizhou Wang, Dongying, CN;
Zhen Yang, Dongying, CN;
Nan Lin, Dongying, CN;
Mingquan Huang, Dongying, CN;
Qinglong Liu, Dongying, CN;
Quanjin Yang, Dongying, CN;
Xiaolin Zhang, Dongying, CN;
Zhiyong Zhang, Dongying, CN;
Chuntian Han, Dongying, CN;
Hai MA, Dongying, CN;
Xiaohui Cui, Dongying, CN;
Chao Lu, Dongying, CN;
Xin Cheng, Dongying, CN;
CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing, CN;
SINOPEC PETROLEUM ENGINEERING TECHNOLOGY SERVICE CO., LTD, Beijing, CN;
SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD, Dongying, CN;
SINOPEC MATRIX CORPORATION, Qingdao, CN;
GEOSTEERING & LOGGING RESEARCH INSTITUTE, SINOPEC MATRIX CORPORATION, Qingdao, CN;
Abstract
A multi-sector data correction method for gamma imaging while drilling includes the steps of: (a) dividing each gamma imaging sector into a plurality of counting zones; (b) counting a number of valid counting pulses for each counting zone at a predetermined time interval during MWD; (c) constructing a plurality of measurement vectors based on a value of recording times of each counting zone; (d) establishing a correction matrix with a conditional number less than a set value through an optimization algorithm; and (e) calculating a gamma intensity of each measured sector with the plurality of measurement vectors and the correction matrix as constructed, so as to complete the correction on the measurement data of each measured sector for each predetermined time interval. This method eliminate problems such as rotational measurement distortion of the gamma imaging while drilling tool and improve the accuracy of calculating the formation dip angle.