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:
May. 31, 2022
Filed:
Dec. 26, 2018
Kureha Corporation, Tokyo, JP;
Shinya Takahashi, Tokyo, JP;
Aki Shitsukawa, Tokyo, JP;
Kureha Corporation, Toko, JP;
Abstract
A downhole plug for well completion is provided, which rapidly degrades after hydraulic fracturing, so that the flow path is recovered in a short time. A downhole plug () is provided, which includes: a mandrel () made of a degradable material; and a plurality of peripheral members () made of a degradable material and disposed on an outer peripheral surface of the mandrel (), where at least one of the plurality of peripheral members () includes: a hollow portion () through which a fluid flowing along an axial direction of the mandrel () can pass; or a groove in at least a portion of, a surface serving as an outer surface of the downhole plug (), or a surface in contact with the mandrel ().