Geothermal production potential of low permeability clastic sandstone reservoir:a case study of Jilin Oilfield
Oil and gas sedimentary basins possess abundant geothermal resources.Due to the tight energy supply and demand in China,the development of geothermal resources in oilfields is increasingly emphasized.To meet the energy consumption of crude oil heating and transportation in A1 site of Jilin Oilfield,the low-porosity and low-permeability clastic sandstone of the third member of Qingshankou Formation in A1 block is taken as the target geothermal reservoir.By using the combination of field test and numerical simulation,the formation physical prop-erties and parameters are identified,the key engineering parameters such as extraction rate are optimized,and the sustainable development potential of geothermal resources is analyzed.The results indicate that two injection and two production wells should be designed to meet the heat requirements in A1 site of Jilin Oilfield.The extraction rate can reach 1 400 m3/d,and the extraction temperature is kept above 67 ℃ over a 10-year period.
oil well reutilizationgeothermal energy in oilfieldsgeothermal exploitationnumerical simula-tioncarbon emission reduction
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维普
