Water geochemistry in the Bozhi-Dabei area, Tarim Basin and its implications for natural gas accumulation in deep basin
文献类型：期刊论文
| 作者 | Chen, Jian4; Fan, Yukun3; Jia, Wanglu4; Zhang, Haizu2; Xu, Jie1,4; Chen, Ning3; Mo, Tao2; Hou, Xiaolin3; Wang, Yunpeng1,4; Peng, Ping'an1,4 |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2026-02-25 |
| 卷号 | 16期号:1页码:16 |
| 关键词 | Gasfield water Iodine-129 Oil-water relationship Tarim Basin Gas accumulation |
| ISSN号 | 2045-2322 |
| DOI | 10.1038/s41598-026-38393-y |
| 通讯作者 | Chen, Jian(chenjian@gig.ac.cn) |
| 英文摘要 | Recently, numerous gas fields have been discovered in deep basins worldwide. However, the geochemistry of the produced water has been poorly studied. Here, we present the chemical and isotopic compositions of water produced from the deep (4-7 km) Bozhi-Dabei (BD) gas field, Tarim Basin, China. The data indicate that the produced water is a mixture of formation water and water condensed from gas. The latter of which has contents of lower total dissolved solids (TDS), different ionic compositions and more negative delta D and delta O-18 values than that of formation water. The formation water in the Lower Cretaceous sandstone reservoirs consists mainly of meteoric water that was strongly affected by the dissolution of Paleogene halite, forming a regional seal. Meteoric water infiltrated the Kumugeliemu halite during the Kangcun-Kuqa stage (16.3-1.64 Ma, Middle Miocene-Late Pliocene interval). A smaller portion of the formation water consists of iodine-rich evaporated seawater that migrated together with gas from transgression-influenced layers in Triassic-Jurassic source rocks. Using the I-129 dating model, different episodes of this migration in the Dabei (DB) East District were recognized, although the dating results were not precise. This study enhances our understanding of the migration and accumulation processes of formation water and natural gas in deep basins and suggests that the chemical and isotopic composition of formation water can be used together with that of gas to constrain the sources and accumulation processes of deeply buried gas. |
| WOS关键词 | OIL-FIELD WATERS ; KUQA FORELAND ; HYDROCARBON ACCUMULATIONS ; BASHIJIQIKE FORMATION ; SANDSTONE RESERVOIRS ; TRACE-ELEMENTS ; I-129 ; ORIGIN ; BRINES ; EVOLUTION |
| 资助项目 | National Natural Science Foundation of China[42573026] ; National Natural Science Foundation of China[42125304] ; State Key Laboratory of Organic Geochemistry[SKLOG2024-03] ; Theory of hydrocarbon enrichment under multisphere interactions of the Earth[THEMSIE04010104] |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:001732298500012 |
| 出版者 | NATURE PORTFOLIO |
| 资助机构 | National Natural Science Foundation of China ; State Key Laboratory of Organic Geochemistry ; Theory of hydrocarbon enrichment under multisphere interactions of the Earth |
| 源URL | [http://ir.ieecas.cn/handle/361006/17821]  |
| 专题 | 地球环境研究所_加速器质谱中心 |
| 通讯作者 | Chen, Jian |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.PetroChina Tarim Oilfield Co, Res Inst Petr Explorat & Dev, Korla 841000, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, Shaanxi Key Lab Accelerator Mass Spectrometry, State Key Lab Loess Sci,Xian AMS Ctr, Xian 710061, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Deep Earth Proc & Resources, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Jian,Fan, Yukun,Jia, Wanglu,et al. Water geochemistry in the Bozhi-Dabei area, Tarim Basin and its implications for natural gas accumulation in deep basin[J]. SCIENTIFIC REPORTS,2026,16(1):16. |
| APA | Chen, Jian.,Fan, Yukun.,Jia, Wanglu.,Zhang, Haizu.,Xu, Jie.,...&Peng, Ping'an.(2026).Water geochemistry in the Bozhi-Dabei area, Tarim Basin and its implications for natural gas accumulation in deep basin.SCIENTIFIC REPORTS,16(1),16. |
| MLA | Chen, Jian,et al."Water geochemistry in the Bozhi-Dabei area, Tarim Basin and its implications for natural gas accumulation in deep basin".SCIENTIFIC REPORTS 16.1(2026):16. |
入库方式： OAI收割
来源：地球环境研究所
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