Abstract
Oil is a kind of non-renewable energy. Our demand for oil is on the increase. With the continuous exploitation of oil resources, China’s oil reserves gradually decrease. As a result, China imports a lot of crude oil every year. With the exploitation of oil, China’s large oil fields will gradually dry up, which requires China to develop medium and low permeability reservoirs. However, there are many difficulties in the development of medium and low permeability reservoirs, such as dense matrix, complex fracture system and low permeability, which will lead to low recovery. With the development of science and technology and the combination of computer technology, eor technology has gradually matured and can be used in low and medium permeability reservoirs. In this paper, the technology of eor is analyzed firstly. Then, according to the characteristics of low and medium permeability reservoirs shown by the computer, the fracturing, percolation, enhanced oil recovery technology and microbial oil displacement technology are analyzed to better develop low and medium permeability reservoirs.
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