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:
Sep. 17, 2019
Filed:
Dec. 22, 2016
Cnpc Usa Corp., Houston, TX (US);
Jianpeng Yue, Sugar Land, TX (US);
Marvin Allen Gregory, Spring, TX (US);
Xiangtong Yang, Xinjiang, CN;
Hongtao Liu, Xinjiang, CN;
CNPC USA CORPORATION, Houston, TX (US);
Abstract
A millable bridge plug system includes a mandrel having an upper portion and a lower portion with an interlock, a shearing member attached at the upper portion, a sealing member, ring members, cone assemblies, slip devices, and an interlocking drill member at a lower portion of the mandrel. The interlock of the mandrel and the interlocking drill member are modular so that one bridge plug interchangeably connects to another bridge plug. The interlocks are compatible with interlocking drill members of other bridge plugs and vice versa. The interlocking drill member has rotatable cutting blades to drill through sand and other debris between the interlocking drill member and the next bridge plug to be removed. A milling unit can drive rotation of the interlocking drill member to reach the next bridge plug for removal, until the interlocking drill member engages the adjacent interlock of the next bridge plug to be removed.