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:
Oct. 13, 2020
Filed:
Dec. 13, 2018
China University of Petroleum-beijing, Beijing, CN;
Kms Oil Field Chemicals & Technical Services Ltd. Beijing, Beijing, CN;
Zhong Shi Da Engineering Research Center Co. Ltd., Beijing, CN;
Petrochina Company Limited, Beijing, CN;
Fujian Zhou, Beijing, CN;
Erdong Yao, Beijing, CN;
Jiangwen Xu, Beijing, CN;
Zhao Luo, Beijing, CN;
Yuan Li, Beijing, CN;
Xiuhui Li, Beijing, CN;
Jiaxin Sun, Beijing, CN;
Xiongfei Liu, Beijing, CN;
Jie Zuo, Beijing, CN;
Xugang Wang, Beijing, CN;
Cuihong Zhou, Beijing, CN;
China University of Petroleum-Beijing, Beijing, CN;
KMS OIL FIELD CHEMICALS & TECHNICAL SERVICES LTD., Beijing, CN;
Zhong Shi Da Engineering Research Center Co. Ltd., Beijing, CN;
PetroChina Company Limited, Beijing, CN;
Abstract
A nano-emulsion composition having a small particle size and ultra-low concentration and a preparation method thereof is disclosed. The raw materials of the composition comprise, in terms of percentage by weight, 0.002% to 0.2% of a polymer-containing homogeneous microemulsion, water, and 99.998% to 99.8% of an organic salt solution or inorganic salt solution. The composition is prepared by diluting a polymer-containing homogeneous microemulsion with water or a salt solution. The polymer-containing homogeneous microemulsion is formed by mixing the following raw materials, in terms of percentage by weight: 8% to 40% of a surfactant, 0.5% to 10% of a polymer, 10% to 30% of an alcohol, 3% to 30% of an oil, 0% to 20% of a salt, and balance of water. The composition of the invention is low in concentration, low in cost, narrow in particle size distribution, good in stability, simple in preparation, and convenient for storage and use.