Geochemical and Isotopic Characteristics of Two Geothermal Systems at the Nanpu Sag, Northern Bohai Bay Basin
文献类型:期刊论文
作者 | Wang, Ke1,2,3; Hua, Cong4; Ren, Lu5; Kong, Yanlong1,2,3; Sun, Wenjie6; Pan, Sheng7; Cheng, Yuanzhi1,2,3; Huang, Yonghui1,2,3; Tian, Fei1,2,3; Zhang, Weizun1,6 |
刊名 | FRONTIERS IN EARTH SCIENCE |
出版日期 | 2022-03-22 |
卷号 | 10页码:13 |
关键词 | hydrothermal energy geochemical characteristic isotopic characteristic two geothermal systems conceptual model nanpu sag |
DOI | 10.3389/feart.2022.844605 |
英文摘要 | The utilization of geothermal energy has gradually increased in northern China because of its unique advantages as a heating supply. However, the sustainable exploitation of geothermal energy usually requires a comprehensive investigation of the geothermal water circulation pattern prevailing at a proposed site. During the exploitation of geothermal energy resources at Nanpu Sag in northern China, thermal anomalies were found to exist in two adjacent regions: the Caofeidian and the Matouying. To reconcile the anomalies and to examine both the source of recharge water and the geothermal systems' circulation dynamics, a comprehensive investigation was performed using multiple chemical and isotopic tracers (delta H-2, delta O-18, Sr-87/Sr-86, delta C-13, and C-14). The total dissolved solids (TDS) of the geothermal water are approximately 750 mg/L and 1,250 mg/L, respectively. The geothermal water isotopes at the two sites are also different, with average values of -9.3 parts per thousand and -8.2 parts per thousand for delta O-18 and -73.4 parts per thousand and -71 parts per thousand for delta H-2, respectively. Moreover, the Sr-87/Sr-86 ratio of geothermal water at Matouying is 0.7185, which is much greater than that of Caofeidian, with an average value of 0.7088. All the results confirm the difference between the two geothermal systems and may explain the two circulation patterns of deep groundwater at Caofeidian and Matouying. The reservoir temperature obtained from theoretical chemical geothermometers is estimated to be 83-92 degrees C at the Caofeidian and 107-137 degrees C at the Matouying, respectively. The corrected C-14 age implies a low circulation rate that would allow sufficient time to heat the water at Caofeidian. In addition, we propose a geothermal conceptual model in our study area. This model could provide key information regarding the geothermal sustainable exploitation and the effective management of geothermal resources. |
WOS关键词 | HEAT-FLOW ; STRONTIUM ISOTOPES ; CHINA ; SUSTAINABILITY ; WATERS ; ENERGY ; AREA ; HYDROGEOCHEMISTRY ; CIRCULATION ; RESERVOIRS |
WOS研究方向 | Geology |
语种 | 英语 |
出版者 | FRONTIERS MEDIA SA |
WOS记录号 | WOS:000779408500001 |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/105112] |
专题 | 地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室 |
通讯作者 | Kong, Yanlong; Sun, Wenjie |
作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing, Peoples R China 2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China 4.Jilin Univ, Coll Environm & Resources, Key Lab Groundwater Resources & Environm, Minist Educ, Changchun, Peoples R China 5.Jidong Oilfield Co PetroChina, Tangshan, Peoples R China 6.China Univ Min & Technol Beijing, Coll Geosci & Surveying Engn, Beijing, Peoples R China 7.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Continental Collis & Plateau Uplift, Beijing, Peoples R China 8.Chinese Acad Geol Sci, Inst Hydrogeol & Environm Geol, Shijiazhuang, Peoples R China 9.Minist Nat Resources, Technol Innovat Ctr Geothermal & Hot Dry Rock Exp, Shijiazhuang, Peoples R China 10.China Natl Petr Corp, Advisory Ctr, Shijiazhuang, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Ke,Hua, Cong,Ren, Lu,et al. Geochemical and Isotopic Characteristics of Two Geothermal Systems at the Nanpu Sag, Northern Bohai Bay Basin[J]. FRONTIERS IN EARTH SCIENCE,2022,10:13. |
APA | Wang, Ke.,Hua, Cong.,Ren, Lu.,Kong, Yanlong.,Sun, Wenjie.,...&Dong, Yuexia.(2022).Geochemical and Isotopic Characteristics of Two Geothermal Systems at the Nanpu Sag, Northern Bohai Bay Basin.FRONTIERS IN EARTH SCIENCE,10,13. |
MLA | Wang, Ke,et al."Geochemical and Isotopic Characteristics of Two Geothermal Systems at the Nanpu Sag, Northern Bohai Bay Basin".FRONTIERS IN EARTH SCIENCE 10(2022):13. |
入库方式: OAI收割
来源:地质与地球物理研究所
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