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Exploitation and Utilization of Oilfield Geothermal Resources in China
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Energies 2016, 9(10), 731; doi:10.3390/en9100731

Estimate of Hot Dry Rock Geothermal Resource in Daqing Oilfield, Northeast China

1
State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
2
University of Chinese Academy of Sciences, Beijing 100101, China
3
School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Kewen Li
Received: 30 July 2016 / Revised: 29 August 2016 / Accepted: 31 August 2016 / Published: 1 October 2016
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Abstract

Development and utilization of deep geothermal resources, especially a hot dry rock (HDR) geothermal resource, is beneficial for both economic and environmental consideration in oilfields. This study used data from multiple sources to assess the geothermal energy resource in the Daqing Oilfield. The temperature logs in boreholes (both shallow water wells and deep boreholes) and the drilling stem test temperature were used to create isothermal maps in depths. Upon the temperature field and thermophysical parameters of strata, the heat content was calculated by 1 km × 1 km × 0.1 km cells. The result shows that in the southeastern part of Daqing Oilfield, the temperature can reach 150 °C at a depth of 3 km. The heat content within 3–5 km is 24.28 × 1021 J, wherein 68.2% exceeded 150 °C. If the recovery factor was given by 2% and the lower limit of temperature was set to be 150 °C, the most conservative estimate for recoverable HDR geothermal resource was 0.33 × 1021 J. The uncertainties of the estimation are mainly contributed to by the temperature extrapolation and the physical parameter selections. View Full-Text
Keywords: hot dry rock; temperature; resource base; Daqing Oilfield hot dry rock; temperature; resource base; Daqing Oilfield
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Jiang, G.; Wang, Y.; Shi, Y.; Zhang, C.; Tang, X.; Hu, S. Estimate of Hot Dry Rock Geothermal Resource in Daqing Oilfield, Northeast China. Energies 2016, 9, 731.

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