Yangtze University

Gaoming Yu

Fan Zhang

Yang Li

Fei Li

Zhi Zhang

Yuehui She

Hao Dong

Yangyang Feng

Shaojin Yi

Puyong Yao

Shanshan Sun

Linqi Hu

Anying Zheng

Wenda Zhang

The present disclosure relates to the technical field of application of bioengineering technology in microbial oil recovery, and discloses astrain and preparation thereof and a method for preparing surfactant, and use thereof. Thestrain is deposited in the China General Microbiological Culture Collection Center under the accession number CGMCC No. 9983. Theand its preparation may effectively enhance the crude oil recovery; the method for preparing the surfactant allow the lipopeptide biosurfactant to have good physical properties, effectively reduce the surface tension, and have good emulsifying performance for petroleum, various hydrocarbons and lipids.

, preparation thereof, method for preparing surfactant and use thereof

A biochemical viscosity reducer for heavy oil and a preparation method thereof. The viscosity reducer includes:-fermented mixed lipopeptide solution: 30 to 60 parts; compound biological enzyme: 15 to 30 parts; plant-based nonionic surfactant: 10 to 20 parts; antibacterial agent: 1 to 5 parts; stabilizer: 1 to 5 parts; and alcohol solvent: 10 to 20 parts; where, the above components are measured by mass. The preparation method includes: step 1: adding 30 to 60 parts of a-fermented mixed lipopeptide solution, 15 to 30 parts of a compound biological enzyme, 10 to 20 parts of a plant-based nonionic surfactant, and 1 to 5 parts of a stabilizer to a reactor; and step 2: adding 1 to 5 parts of an antibacterial agent and an alcohol solvent to the reactor, and stirring a resulting mixture for 60 min to 120 min.

Biochemical viscosity reducer for heavy oil and preparation method thereof

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Wuhan, China

Gaoming Yu