Assessment and Development of Geothermal Resources in Jizhong Depression

Abstract

Abstract: Jizhong Depression is very rich in geothermal resources, and a large number of wells have been drilled in geothermal reservoir. Geothermal fields are mainly controlled by geologic structures in the Depression. The geothermal field is affected by formation lithology, cover thickness, water exchange, fracture conductivity, and depth of geothermal reservoir, etc. Three big geothermal aquifer systems developed in the Depress, i.e. the weak alternation zone between Proterozoic and Lower Paleozoic, the Upper Paleozoic-Paleogene alternation blocking zone, and the strong alternation zone of Neogene. There are three types of geothermal reservoir, i.e. porous-type geothermal reservoir, fracture-type geothermal reservoir, and fracture-cave-type geothermal reservoir, among which the base rock fractured reservoir has high temperature and high geothermal energy. Experiment on the utilization of geothermal energy is conducted by use of abandoned wells in Liubei geothermal field.

Key words: geothermal resource, geothermal field, geothermal reservoir, resources, Jizhong Depression

CLC Number:

P314

Liang Hongbin, Qian Zheng, Xin Shouliang, Zhao Kejing and Zhu Lianru. Assessment and Development of Geothermal Resources in Jizhong Depression[J]. China Petroleum Exploration, 2010, 15(5): 63-68,86.

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Assessment and Development of Geothermal Resources in Jizhong Depression

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