ESTIMATION OF DEEP GEOTHERMAL RESERVOIR TEMPERATURE IN QABQA AREA, QINGHAI PROVINCE

LI Yong-ge; LIN Wen-jing; XING Lin-xiao; WANG Gui-ling; LIU Zhi-ming

doi:10.13686/j.cnki.dzyzy.2021.04.010

2021 Vol. 30, No. 4

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Article navigation > Geology and Resources > 2021 > 30(4): 479-484, 511

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LI Yong-ge, LIN Wen-jing, XING Lin-xiao, WANG Gui-ling, LIU Zhi-ming. ESTIMATION OF DEEP GEOTHERMAL RESERVOIR TEMPERATURE IN QABQA AREA, QINGHAI PROVINCE[J]. Geology and Resources, 2021, 30(4): 479-484, 511. doi: 10.13686/j.cnki.dzyzy.2021.04.010

Citation:

LI Yong-ge, LIN Wen-jing, XING Lin-xiao, WANG Gui-ling, LIU Zhi-ming. ESTIMATION OF DEEP GEOTHERMAL RESERVOIR TEMPERATURE IN QABQA AREA, QINGHAI PROVINCE[J]. Geology and Resources, 2021, 30(4): 479-484, 511. doi: 10.13686/j.cnki.dzyzy.2021.04.010

ESTIMATION OF DEEP GEOTHERMAL RESERVOIR TEMPERATURE IN QABQA AREA, QINGHAI PROVINCE

1.
Puyang Hydrology and Water Resources Survey Bureau, Puyang 457000, Henan Province, China
2.
Institute of Hydrogeology and Environmental Geology, CAGS, Shijiazhuang 050000, China

Received Date: 14 December 2020

Revised Date: 09 February 2021

Publish Date: 25 August 2021

Abstract

Abstract

The determination of geothermal reservoir temperature can provide significant parameters for evaluating geothermal resource potential. Qabqa area of Qinghai Province is enriched in geothermal resources, but it is difficult to determine the deep geothermal reservoir temperature. Based on the two hot water wells in Qabqa area, combined with their hydrochemical characteristics, various methods are used to estimate the deep geothermal reservoir temperature. The results show that the temperature scale of SiO₂ is the most indicative. The correction of mixing of cold water and degassing by PHREEQC software makes the calculation results relatively accurate and reliable. Through mutual verification of several methods, it is finally determined that the Neogene geothermal reservoir temperature in Qabqa area is 86-107℃, with the geothermal gradient about 6℃/100 m.
- thermal reservoir temperature /
- geothermometer /
- PHREEQC /
- Qabqa area /
- Qinghai Province

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References

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