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:
Nov. 25, 2025
Filed:
Apr. 22, 2025
China University of Petroleum (East China), Qingdao, CN;
Beijing University of Chemical Technology, Beijing, CN;
Jianbo Zhang, Qingdao, CN;
Yang Yang, Qingdao, CN;
Hui Liu, Beijing, CN;
Xiaoao Liu, Beijing, CN;
Jintang Wang, Qingdao, CN;
Bo Zhang, Beijing, CN;
Zhiyuan Wang, Qingdao, CN;
Xiaohui Sun, Qingdao, CN;
Jie Zhong, Qingdao, CN;
Bangtang Yin, Qingdao, CN;
Xuerui Wang, Qingdao, CN;
Baojiang Sun, Qingdao, CN;
CHINA UNIVERSITY OF PETROLEUM (EAST CHINA), Qingdao, CN;
BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY, Beijing, CN;
Abstract
Disclosed are a device and method for rapidly regulating downhole pressure after a kick in deepwater shallow open-circuit drilling. The device includes a real-time monitoring device and a real-time regulation device. Aiming at deepwater shallow open-circuit drilling characteristics, the present disclosure proposes that a drilling fluid return condition at a seabed is monitored through a subsea remote operated vehicle (ROV); based on this data, whether gas influx occurs in a downhole or not and changes of the gas influx rate and the formation pressure after the gas influx are analyzed in real time, and then real-time guidance is provided for the design of key parameters such as well killing fluid displacement and density, and the well killing fluid displacement and density are regulated in real time, to achieve rapid regulation of the downhole pressure after gas influx of deepwater shallow open-circuit drilling.