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:
Jan. 29, 2008
Filed:
Nov. 21, 2003
Changming Su, Beijing, CN;
Rushan Liu, Beijing, CN;
Weiping Xu, Beijing, CN;
Zengchen Guan, Dougying, CN;
Peizhi Yu, Beijing, CN;
Xiushan Liu, Beijing, CN;
Jiafen LI, Beijing, CN;
Baoyu Guo, Dongying, CN;
Yingchun Cui, Beijing, CN;
Caixuan Guo, Dezhou, CN;
Jing LI, Beijing, CN;
Changming Su, Beijing, CN;
Rushan Liu, Beijing, CN;
Weiping Xu, Beijing, CN;
Zengchen Guan, Dougying, CN;
Peizhi Yu, Beijing, CN;
Xiushan Liu, Beijing, CN;
Jiafen Li, Beijing, CN;
Baoyu Guo, Dongying, CN;
Yingchun Cui, Beijing, CN;
Caixuan Guo, Dezhou, CN;
Jing Li, Beijing, CN;
China Petroleum & Chemical Corporation, Beijing, CN;
Exploration & Production Research Insitute, SINOPEC, Beijing, CN;
China Petro-Chemical Corporation Shengli Petroleum Administrative Bureau, Dongying, CN;
Abstract
An electropositive and water-based production well treating fluid system exhibits electropositivity by using a cationic viscosifier meanwhile matched with a cationic fluid loss additive and, optionally, contains a mud-building agent, an electrical stabilizing agent, a colloid-stabilizing agent, lubricant, an oil layer protective agent and/or a weighting agent. The electropositive production well treating fluid can beffer solve the contradiction of technical requirements between 'treating fluid stability' and 'bore hole stability', and features a strong ability to inhibit the dispersion of clay, a good effect of protecting oil-gas reservoirs, fast drilling speeds, regular shape of bore holes and good resistance to salt.