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. 16, 2026
Filed:
Jul. 18, 2023
China Petroleum & Chemical Corporation, Beijing, CN;
Sinopec Petroleum Engineering Technology Research Institute Co., Ltd., Beijing, CN;
CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing, CN;
SINOPEC PETROLEUM ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD., Beijing, CN;
Abstract
The present invention proposes a packer, comprising a central tube (), an outer surface of which is provided with a first prefabricated groove (); a rubber cylinder unit (), comprising a rubber cylinder assembly (), an upper rubber cylinder seat () and a lower rubber cylinder seat (), a slot () being formed in an inner wall surface of the upper rubber cylinder seat; an upper anchoring unit () and a lower anchoring unit () arranged at both ends of the rubber cylinder unit, respectively, the upper anchoring unit comprising an upper cone () and an upper slip (), and the lower anchoring unit comprising a lower cone () and a lower slip (); and an unsetting mechanism (), comprising a connecting sleeve (), wherein through grooves () are arranged on the connecting sleeve, and one unsetting block () is arranged in each through groove.