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. 02, 2026
Filed:
Jun. 16, 2025
China University of Petroleum-beijing, Beijing, CN;
CHINA UNIVERSITY OF PETROLEUM—BEIJING, Beijing, CN;
Abstract
A highly-sealed retrievable anchoring packer, includes a hollow tube, a blocking member, an expansion sleeve, a drive sleeve, and at least one slip assembly, and an outer side of the hollow tube is provided with a first retaining ring and a second retaining ring. By blocking an opening of the hollow tube close to the first retaining ring with the blocking member and injecting liquid into the hollow tube through another opening of the hollow tube, part of the liquid enters a cavity formed by enclosing of the drive sleeve, the first retaining ring and the hollow tube, to move the drive sleeve. Under the action of the drive sleeve, an inclined body squeezes the expansion sleeve, the expansion sleeve expands radially, and the slip member is unfolded along the inclined body, realizing the setting of the packer.