废弃油井直接换热技术及应用效果评价

doi:10.13686/j.cnki.dzyzy.2020.05.013

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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.

Key words： abandoned oil well geothermal energy heat exchange technology thermal conductivity of rock geothermal gradient

Received: 23 March 2020

PACS:

P314

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	Articles by authors
	HU Xia
	LYU Jian-cai
	ZHANG Xin-cheng

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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.

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http://manu25.magtech.com.cn/Jweb_dzyzy/EN/10.13686/j.cnki.dzyzy.2020.05.013 OR http://manu25.magtech.com.cn/Jweb_dzyzy/EN/Y2020/V29/I5/497

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