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:
Jul. 01, 2025
Filed:
Oct. 23, 2020
China Petroleum & Chemical Corporation, Beijing, CN;
Shanghai Research Institute of Petrochemical Technology, Sinopec, Shanghai, CN;
Yong Meng, Shanghai, CN;
Yingcheng Li, Shanghai, CN;
Weidong Zhang, Shanghai, CN;
Ou Sha, Shanghai, CN;
Xinning Bao, Shanghai, CN;
Jun Jin, Shanghai, CN;
Xinyue Wu, Shanghai, CN;
China Petroleum & Chemical Corporation, Beijing, CN;
Shanghai Research Institute of Petrochemical Technology, Sinopec, Shanghai, CN;
Abstract
The present invention relates to a biological and chemical composite blockage removing agent and preparation process and use thereof, and mainly solves the problems that the existing blockage removing agents have poor blockage removal effect on organic blockages, cause damage to formations and oil-wells, produce serious environmental pollution, and corrode the equipment, pipelines, and the like. The problems can be well solved by using a technical solution of a biological and chemical composite blockage removing agent, which contains the following components in parts by mass: A. 10-50 parts of a biosurfactant; B. 5-20 parts of a chemical surfactant; wherein the chemical surfactant is an anionic-nonionic surfactant, and said technical solution can be used in the industrial production for removing the blockage in the oilfield, and reducing the injection pressure and increasing the injection.