Journal of Jilin University(Earth Science Edition) ›› 2015, Vol. 45 ›› Issue (4): 1189-1197.doi: 10.13278/j.cnki.jjuese.201504205

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Prediction of Hydrothermal Production from Hot Dry Rock Development in Northern Songliao Basin

Li Zhengwei1, Zhang Yanjun1,2, Guo Liangliang1, Jin Xianpeng3   

  1. 1. School of Construction Engineering, Jilin University, Changchun 130026, China;
    2. Key Lab of Groundwater Resources and Environment of Ministry of Education, Jilin Univesity, Changchun 130021, China;
    3. Downhole Operation Company of Daqing Oilfield, Daqing 163453, Heilongjiang, China
  • Received:2014-10-14 Published:2015-07-26

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Abstract:

Hot dry rock (HDR) is a kind of clean energy with wide distribution and huge resource reserves. At the early stages of HDR development, to predict the hydrothermal production of the site is of great significance. The authors conducted, fracturing simulation,using FRACPRO software based on the geological data of Yingshen-1 well in northern Songliao basin. The geometric features and the conductivity capacity of the resulting hydraulic fractures were imported into a 3-D geological model established with TOUGH2; then the heat transfer process was simulated. The simulation results show that the maximum production rate of the resulting fracture in this area is approximately 8 kg/s. The flow impedance increases from 0.74 MPa/(kg·s) to 2.72 MPa/(kg·s) during 10 years operation. The production temperature dropped 5.5 ℃ after 10 years operation. The calculated average heat production capacity is 2 930 kJ/s. The simulation results indicate that reservoir permeability is enhanced by artificial stimulation, the heat production is stable during the production process. It proves that the stimulation method is reasonable. The methods used to improve the hydrothermal production need further study.

Key words: hot dry rock, hydraulic fracturing, hydrothermal coupling, numerical simulation, heat production power, Songliao basin

CLC Number: 

  • TK521

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