Analysis and countermeasures on influencing factors of geothermal well reinjection in Lankao， Henan province

doi:10.12143/j.ztgc.2022.06.020

Home > Archive>Volume 49, Issue 6, 2022 >146-152. DOI:10.12143/j.ztgc.2022.06.020

Analysis and countermeasures on influencing factors of geothermal well reinjection in Lankao， Henan province
DOI:
                        10.12143/j.ztgc.2022.06.020
                    
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Author:
                        CHEN Ying1CHEN Ying
Henan Engineering Research Center of Deep Exploration, Zhengzhou Henan 450053, China
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WANG Panke2WANG Panke
No.2 Institute of Geo-Environment Survey of Henan, Zhengzhou Henan 450053, China
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WU Ye3WU Ye
Henan University of Engineering, Zhengzhou Henan 451191, China
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MA Qingpo4MA Qingpo
Geological Vocational School of Henan Province, Zhengzhou Henan 450053, China
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YU Li2YU Li
No.2 Institute of Geo-Environment Survey of Henan, Zhengzhou Henan 450053, China
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SHANGGUAN Rui1SHANGGUAN Rui
Henan Engineering Research Center of Deep Exploration, Zhengzhou Henan 450053, China
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Affiliation:1.Henan Engineering Research Center of Deep Exploration, Zhengzhou Henan 450053, China;2.No.2 Institute of Geo-Environment Survey of Henan, Zhengzhou Henan 450053, China;3.Henan University of Engineering, Zhengzhou Henan 451191, China;4.Geological Vocational School of Henan Province, Zhengzhou Henan 450053, China
Clc Number:P634;TE249
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Abstract:

Geothermal well reinjection is one of the key steps to ensure the sustainable development and utilization of geothermal resources. This paper， in reference to the geological conditions of thermal reservoir， water quality characteristics and geothermal well pipe material in Lankao， Henan province， presents the indoor corrosion observation experiment and PHREEQC geochemical simulation software. The influencing factors of reinjection effect are analyzed from the aspects of chemical precipitation trend， corrosiveness of geothermal water， drilling and well completion technology. Suggestions are put forward to improve geothermal reinjection effect in terms of geothermal water quality treatment， geothermal well pipe material selection， drilling and well completion technology optimization， reinjection temperature， site selection.

Key words:geothermal resources;Guantao formation;geothermal well;reinjection;Lankao region

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Received:September 26,2021
Revised:April 22,2022
Adopted:May 05,2022
Online: December 05,2022
Published: November 10,2022

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