Shengli Oilfield biosurfactant achieves large-scale application

Accumulated oil increase of 268,000 tons

After nearly 10 years of research and development, Shengli Oilfield has broken through the core technology bottleneck, developed a complete set of 10,000-ton biosurfactant production technology, and launched a large-scale application on site
.
So far, Shengli Oilfield's cumulative oil increase has reached 268,000 tons

Surfactant as the main oil-displacing agent plays a vital role in the process of improving oilfield recovery.
As a type of surfactant produced by microbial fermentation, biosurfactant is green, low-cost, and temperature-resistant.
The advantages of salt, etc.
, have been increasingly used in oilfields, but at the same time, it has exposed many technical problems such as low fermentation yield, lack of continuous production technology, and inapplicability to different reservoir types of flooding systems
.

In 2011, the Shengli Oilfield Petroleum Engineering Technology Research Institute united with the Research Institute of Petrochemical Sciences, Tsinghua University, Shandong University and other units to form a research team to carry out biosurfactant research
.
The newly developed biosurfactant by the research team is based on synthetic biotechnology and constructed multiple genetically engineered strains.

In view of the contradictions in the development of water drive reservoirs, medium-low permeability reservoirs and heavy oil reservoirs, researchers have also constructed lipopeptide ultra-low interfacial tension, rhamnolipid moisturizing drag reduction, and modified sophorolipid emulsification to reduce viscosity.