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. 24, 2016
Filed:
Oct. 18, 2013
China Petroleum & Chemical Corporation, Beijing, CN;
Drilling Technology Research Institute of Sinopec Oilfield Service Shengli Corporation, Dongying, CN;
Zuohui Li, Dongying, CN;
Ming Tang, Dongying, CN;
Liugen Wu, Dongying, CN;
Jianzhong Ma, Dongying, CN;
Peng Cai, Dongying, CN;
Zhigang Peng, Dongying, CN;
Wansheng Zhu, Dongying, CN;
Chenglei Tang, Dongying, CN;
Zhaozheng Teng, Dongying, CN;
Xuetao Ning, Dongying, CN;
Haibo Zhu, Dongying, CN;
Xuexiang Shen, Dongying, CN;
Abstract
A downhole casing expansion tool and a method of expanding casings using the same. The expansion tool includes an expansion module for expanding casings and a drive module for driving the expansion module. The diameter of the openhole can be kept consistent by the expansion tool, so that monohole well drilling and completion operations can be carried out. The expansion tool is particularly suitable for constructions in deep, ultra-deep and complex wells.