BERO™ biosurfactant is currently the world-leading product used for MEOR (microbial enhanced oil recovery) and it is a kind of non-active enzyme preparation using microorganism as matrix. It utilizes modern bioengineering technologies such as genetic engineering, cell engineering and enzyme engineering and can efficiently release hydrocarbon (oil) on the surfaces of solid particles. After being injected into a well, BERO™ biosurfactant can rapidly strip wax and asphalt crystallized and accumulated on rock particles in the area of a reservoir close to well and part of BERO™ biosurfactant adheres to rock surface to make the wettability of the rock become water-wetting, lower the flowing resistance of crude oil in formation voids, thus releasing crude oil from rock particle surface and being separated out from micropores. BERO molecules entering into water can be transported to the area further than the surrounding area of sandstone formation and form new oil outlet passages in sandstone formation so as to clean production well in oil reservoir, plugging removal and injection reduction of water injection well, plugging removal and stimulation, displacement and improving oil recovery rate.
Laboratory experiment shows that BERO™ biosurfactant can reduce the oil content of mud to about 0.20% within 60 seconds. Different from fracturing, chemical and endogenous (heterologous) biotechnologies conventionally used in the market, BERO™ biosurfactant allows clean treatment harmless to oil reservoir; it is a safe, nontoxic, pollution-free, inflammable, non-explosive and environmentally friendly high-tech product since it directly acts on pollutants of oil reservoir and will not change the properties of crude oil and can clean oil reservoir and allow plugging removal and rejection reduction of water injection wells, oil displacement of the block and stimulation of production wells; in addition, it will not be affected by shear degradation, temperature, pressure, acid, alkali and water salinity or bring secondary pollution and new plugging to oil reservoir, can effectively prolong the development life of oilfields and has great adaptability and vast application prospect. Our company has extensively cooperated with Daqing Oilfield, Jilin Oilfield, Karamay Oilfield, Nanyang Oilfield, Zhongyuan Oilfield, Qinghai Oilfield, Yanchang Oilfield and the like of China in technical experiments and construction, gained obvious economic and social benefits and been widely recognized and well received by customers.
