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:
Jun. 14, 2022
Filed:
Aug. 02, 2019
China University of Petroleum (Beijing), Beijing, CN;
Yunhu Lu, Beijing, CN;
Yan Jin, Beijing, CN;
Mian Chen, Beijing, CN;
Zejun Li, Beijing, CN;
Hanqing Wang, Beijing, CN;
Yang Xia, Beijing, CN;
Zhou Zhou, Beijing, CN;
Bing Hou, Beijing, CN;
Botao Lin, Beijing, CN;
Xuyang Guo, Beijing, CN;
China University of Petroleum (Beijing), Beijing, CN;
Abstract
A modeling method is provided. The modeling method includes: extracting multiple pieces of logging data corresponding to a plurality of logging characteristic parameters at different drilling depths of a sample well, based on a logging information of the sample well; marking the different drilling depths based on a lost circulation information of the sample well to distinguish lost circulation points and non-lost circulation points; and classifying the lost circulation points and the non-lost circulation points by adopting a random forest algorithm, based on the plurality of logging characteristic parameters and the multiple pieces of marked logging data at the different drilling depths, to establish a plurality of corresponding relations between the logging characteristic parameters and a lost circulation or non-lost circulation result, so as to obtain a diagnosis model.