EVALUATION ON APPLICATION EFFECT OF DIRECT HEAT EXCHANGE TECHNOLOGY IN ABANDONED OIL WELLS

HU Xia; LYU Jian-cai; ZHANG Xin-cheng

doi:10.13686/j.cnki.dzyzy.2020.05.013

2020 Vol. 29, No. 5

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Article navigation > Geology and Resources > 2020 > 29(5): 497-502

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HU Xia, LYU Jian-cai, ZHANG Xin-cheng. EVALUATION ON APPLICATION EFFECT OF DIRECT HEAT EXCHANGE TECHNOLOGY IN ABANDONED OIL WELLS[J]. Geology and Resources, 2020, 29(5): 497-502. doi: 10.13686/j.cnki.dzyzy.2020.05.013

Citation:

HU Xia, LYU Jian-cai, ZHANG Xin-cheng. EVALUATION ON APPLICATION EFFECT OF DIRECT HEAT EXCHANGE TECHNOLOGY IN ABANDONED OIL WELLS[J]. Geology and Resources, 2020, 29(5): 497-502. doi: 10.13686/j.cnki.dzyzy.2020.05.013

EVALUATION ON APPLICATION EFFECT OF DIRECT HEAT EXCHANGE TECHNOLOGY IN ABANDONED OIL WELLS

1.
Exploration and Development Research Institute of Daqing Oilfield Co., Ltd., Daqing 163712, Heilongjiang Province, China
2.
Daqing Oilfield Water Supply Co., Ltd., Daqing 163453, Heilongjiang Province, China

Received Date: 23 March 2020

Revised Date: 15 April 2020

Publish Date: 25 October 2020

Abstract

Abstract

Based on the subsurface geological characteristics of Hulun Buir area, the abandoned oil wells with suitable depth, well structure and casing program are selected in the work area. According to the "Criteria for Exploration and Evaluation of Shallow Geothermal Energy", the bottom perforation layers are sealed and transformed to achieve the superconductive liquid closed circulation and direct heat exchange in deep wells. Through the direct heat exchange test of ZK1 oil well, a good application effect of single well heat transfer power about 162 kWh and heat transfer energy of 90 W/m are obtained by stability test. The successful result of ZK1 oil well indicates that the direct heat exchange transformation of abandoned oil wells is feasible. Moreover, it summarizes a set of transformation process and heat utilization scheme, which provides experience for similar projects and opens up a new way for utilization of clean geothermal energy.
- abandoned oil well /
- geothermal energy /
- heat exchange technology /
- thermal conductivity of rock /
- geothermal gradient

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