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Ion and Stable Isotope Geochemistry of Produced Water in Coalbed Methane Wells in the Tiefa Basin
[Image: see text] The potential geochemical information in the produced water of coalbed methane (CBM) wells is conducive to the exploration and development of CBM in the case that the produced water is primitive formation water. A total of 58 produced water samples collected from 13 CBM wells in th...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10601432/ https://www.ncbi.nlm.nih.gov/pubmed/37901504 http://dx.doi.org/10.1021/acsomega.3c06340 |
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author | Huang, Huazhou Tong, Chuanxia Wu, Zhengqing Ding, Junjie Huang, Zaixing He, Huan Zhang, Jinbo |
author_facet | Huang, Huazhou Tong, Chuanxia Wu, Zhengqing Ding, Junjie Huang, Zaixing He, Huan Zhang, Jinbo |
author_sort | Huang, Huazhou |
collection | PubMed |
description | [Image: see text] The potential geochemical information in the produced water of coalbed methane (CBM) wells is conducive to the exploration and development of CBM in the case that the produced water is primitive formation water. A total of 58 produced water samples collected from 13 CBM wells in the Daxing Mine, Tiefa Basin, were investigated. Ionic composition tests and stable isotope analysis were conducted to explore the geochemical characteristics and sources of produced water as well as the method for determining whether the produced water is primitive formation water. The results suggest that the fracking fluid for CBM stimulations is the main factor affecting the ion change of the produced water in the initial stage of drainage. The concentrations of Cl(–) and Ca(2+) + Mg(2+) could be taken as the indices to identify whether the produced water is primitive formation water. When the Cl(–) concentration is lower than 20 mEq/L and the Ca(2+) + Mg(2+) concentration is lower than 1 mEq/L, the produced water is close to the pristine formation water. Biogenic methanogenic activity may result in a high δ(13)C(DIC) and high concentrations of HCO(3)(–) in the pristine formation water in the Tiefa Basin. The data of δD and δ(18)O in the study area suggest that the formation water might come from atmospheric precipitation, which is later affected by evaporation and the water–rock reaction. The hydrogen isotope values in the produced water derived from the lower coal group display a substantial elevation compared to those from the upper coal group. This disparity in the hydrogen isotope composition presents an opportunity to utilize δD in produced water as a tool for distinguishing the formation water between these two groups. |
format | Online Article Text |
id | pubmed-10601432 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-106014322023-10-27 Ion and Stable Isotope Geochemistry of Produced Water in Coalbed Methane Wells in the Tiefa Basin Huang, Huazhou Tong, Chuanxia Wu, Zhengqing Ding, Junjie Huang, Zaixing He, Huan Zhang, Jinbo ACS Omega [Image: see text] The potential geochemical information in the produced water of coalbed methane (CBM) wells is conducive to the exploration and development of CBM in the case that the produced water is primitive formation water. A total of 58 produced water samples collected from 13 CBM wells in the Daxing Mine, Tiefa Basin, were investigated. Ionic composition tests and stable isotope analysis were conducted to explore the geochemical characteristics and sources of produced water as well as the method for determining whether the produced water is primitive formation water. The results suggest that the fracking fluid for CBM stimulations is the main factor affecting the ion change of the produced water in the initial stage of drainage. The concentrations of Cl(–) and Ca(2+) + Mg(2+) could be taken as the indices to identify whether the produced water is primitive formation water. When the Cl(–) concentration is lower than 20 mEq/L and the Ca(2+) + Mg(2+) concentration is lower than 1 mEq/L, the produced water is close to the pristine formation water. Biogenic methanogenic activity may result in a high δ(13)C(DIC) and high concentrations of HCO(3)(–) in the pristine formation water in the Tiefa Basin. The data of δD and δ(18)O in the study area suggest that the formation water might come from atmospheric precipitation, which is later affected by evaporation and the water–rock reaction. The hydrogen isotope values in the produced water derived from the lower coal group display a substantial elevation compared to those from the upper coal group. This disparity in the hydrogen isotope composition presents an opportunity to utilize δD in produced water as a tool for distinguishing the formation water between these two groups. American Chemical Society 2023-10-13 /pmc/articles/PMC10601432/ /pubmed/37901504 http://dx.doi.org/10.1021/acsomega.3c06340 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Huang, Huazhou Tong, Chuanxia Wu, Zhengqing Ding, Junjie Huang, Zaixing He, Huan Zhang, Jinbo Ion and Stable Isotope Geochemistry of Produced Water in Coalbed Methane Wells in the Tiefa Basin |
title | Ion and Stable Isotope Geochemistry of Produced Water
in Coalbed Methane Wells in the Tiefa Basin |
title_full | Ion and Stable Isotope Geochemistry of Produced Water
in Coalbed Methane Wells in the Tiefa Basin |
title_fullStr | Ion and Stable Isotope Geochemistry of Produced Water
in Coalbed Methane Wells in the Tiefa Basin |
title_full_unstemmed | Ion and Stable Isotope Geochemistry of Produced Water
in Coalbed Methane Wells in the Tiefa Basin |
title_short | Ion and Stable Isotope Geochemistry of Produced Water
in Coalbed Methane Wells in the Tiefa Basin |
title_sort | ion and stable isotope geochemistry of produced water
in coalbed methane wells in the tiefa basin |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10601432/ https://www.ncbi.nlm.nih.gov/pubmed/37901504 http://dx.doi.org/10.1021/acsomega.3c06340 |
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