Recently, a reporter from the Science and Technology Daily went into the microbial oil production technology laboratory of the Experimental Center of the Exploration and Development Institute of Daqing Oilfield and saw a bottle of "oil baby" filled with black liquid arranged neatly in a warm "cradle" shaking at a uniform speed. It turned out that this laboratory is conducting research on the use of microorganisms to degrade crude oil to produce natural gas.
It is understood that Daqing Oilfield, China's largest oilfield, has experienced 60 years of high-speed development from water flooding, polymer flooding, and compound flooding. The oil content of underground reservoirs has decreased year by year, and it has become increasingly difficult to effectively use them. Microbial oil recovery technology is to convert about 30% of the crude oil that remains in the stone cracks under the ground after the third and fourth oil recovery, using existing technology, into natural gas, and develop the depleted oil field into a gas field for full utilization. The purpose of petroleum resources.
According to Wang Rui, senior engineer of the second room of recovery research of Daqing Exploration and Development Research Institute, microbial oil recovery technology is the use of microbial metabolites (mainly biosurfactants, organic solvents, biopolymers, gases, etc.) and the activities of microbes ( The role of cell bodies, biodegradation and other characteristics) to increase production or increase the recovery rate of a four-time oil recovery technology. This technology has no pollution to the environment and is truly green and environmentally friendly oil recovery technology. The conversion of carbon sources from carbohydrates to hydrocarbons not only enhances the adaptability of the reservoir, but also greatly reduces costs, breaks through the traditional judgments of the world's microbial oil recovery community, determines the process of microbial degradation of crude oil, and adopts technology The method controls the degree of degradation and improves the effect of microbial oil recovery to a large extent. (Reporter Li Liyun correspondent Du Zhiqing Ran Meng)
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