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. 23, 2019
Filed:
Sep. 13, 2018
China University of Petroleum (Beijing), Beijing, CN;
Guancheng Jiang, Beijing, CN;
Deli Gao, Beijing, CN;
Shuo Zhang, Beijing, CN;
Yong Wang, Beijing, CN;
Xianzhu Wu, Chengdu, CN;
Liexiang Han, Beijing, CN;
Xiangzeng Wang, Beijing, CN;
Chunyao Peng, Beijing, CN;
Yinbo He, Beijing, CN;
Fan Liu, Beijing, CN;
Hongguo Zuo, Beijing, CN;
Yongqing Zhang, Beijing, CN;
Lili Yang, Beijing, CN;
Zhong Li, Beijing, CN;
Yanjun Li, Beijing, CN;
Abstract
The present invention relates to well drilling field in the petroleum industry, particularly to accelerator used for drilling fluids, water-based drilling fluid and usage thereof. The accelerator contains: sulfonated polyglycerol long-chain fatty acid ester, fatty alcohol polyoxyethylene ether, alcohol ether carboxylate, glycidyl ether, and polyoxyethylene alkylphenol ether; wherein, the weight ratio of the sulfonated polyglycerol long-chain fatty acid ester:the fatty alcohol polyoxyethylene ether:the alcohol ether carboxylate:the glycidyl ether:the polyoxyethylene alkylphenol ether is 100:1-10:0.5-10:1-10:1-10. The accelerator provided in the present invention can lubricate the drill bit and drilling tool, prevent accumulation of drill cuttings, reduce friction, and improve rate of penetrate.