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:
Apr. 13, 2021
Filed:
Jul. 13, 2018
Southwest Petroleum University, Chengdu, CN;
Xiaowei Cheng, Chengdu, CN;
Dan Long, Chengdu, CN;
Kaiyuan Mei, Chengdu, CN;
Kaiqiang Liu, Chengdu, CN;
Gaoyin Zhang, Chengdu, CN;
Dan Qin, Chengdu, CN;
Xianshu Gao, Chengdu, CN;
Jianzhou Jin, Chengdu, CN;
Zhaijun Wen, Chengdu, CN;
Yongjin Yu, Chengdu, CN;
Chunmei Zhang, Chengdu, CN;
Zaoyuan Li, Chengdu, CN;
Xingguo Zhang, Chengdu, CN;
Xiaoyang Guo, Chengdu, CN;
SouthWest Petroleum University, Chengdu, CN;
China Academy of Building Research, Beijing, CN;
CNPC Engineering Technology R&D Company Limited, Beijing, CN;
Abstract
A well cementation working solution prepared from red mud, slag and waste drilling fluids. The working solution is prepared from the following components in parts by weight: 100 parts of waste drilling fluids, 50-100 parts of slag, 5-50 parts of red mud, 4-7 parts of a suspension stabilizer, 1-7 parts of an activating aid, 0.5-5 parts of an anti-pollution agent and 0.4-3.5 parts of a diluent. The waste drilling fluids are waste waterborne drilling fluids. The slag is blast furnace slag or vanadium-titanium slag. The suspension stabilizer is sodium bentonite, carboxymethyl cellulose or a mixture of sodium bentonite and carboxymethyl cellulose. The activating aid is sodium metasilicate nonahydrate, sodium carbonate or a mixture of sodium metasilicate nonahydrate and sodium carbonate. The anti-pollution agent is sodium salicylate, potassium citrate or a mixture of sodium salicylate and potassium citrate. The diluent is sodium lignin sulfonate.