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Origin and evolution of oilfield waters in the Tazhong oilfield, Tarim Basin, China, and their relationship to multiple hydrocarbon charging events

文献类型：期刊论文

作者Chen, Jian2; Liu, Dayong2; Hou, Xiaolin4; Fan, Yukun4; Jia, Wanglu2; Peng, Ping'an1,2; Zhang, Baoshou3; Xiao, Zhongyao3
刊名MARINE AND PETROLEUM GEOLOGY
出版日期2018-12-01
卷号98页码:554-568
关键词Oilfield waters Tarim basin Hydrocarbon migration Iodine-129 Gas invasion
ISSN号0264-8172
DOI10.1016/j.marpetgeo.2018.09.018
通讯作者Chen, Jian(chenjian@gig.ac.cn)
英文摘要We conducted a chemical and isotopic study of oilfield waters from Ordovician limestone reservoirs in the Tazhong oilfield (Tarim Basin, China) to trace the origin and evolution of the waters, and to demonstrate their possible relationship with hydrocarbon charging. The elemental chemistry (Cl, Br, SO4, I, K, Na, Ca, Mg, and Sr) and multiple isotopic compositions (delta D, delta O-18, Sr-87/Sr-86, and 129 I/I) of the oilfield waters were determined. The results show that these oilfield waters contain basinal brines that infiltrated in three stages, along with a lesser contribution from meteoric water. The meteoric water appears to have infiltrated downwards during the late Silurian and Carboniferous. The earliest brine had very low I contents (< 5.65 mg/L) and migrated upwards from organic-poor Cambrian to Lower Ordovician dolostones during the Late Ordovician. The second brine had high I contents (> 50 mg/L), was derived from Cambrian argillaceous source rocks, and migrated upwards into Ordovician reservoirs. This stage was related to the main period of migration of crude oils out of the source rocks into reservoirs during the Silurian and Devonian. Both of these brines incorporated constant levels of fissiogenic I-129 from the limestone reservoir rocks (11.8-47.0 atom/mu L). Finally, brine with very low I contents, but higher I-129 (106-491 atom/mu L), began to migrate upwards and infiltrate reservoirs. Given the relatively high fissiogenic I-129, this stage may have occurred during the late Cenozoic, and was associated with migration of dry gas from the same source rocks. Our results, combined with those of a previous study of other oilfields in the basin, suggest that the evolutionary of oilfield waters can be used to constrain hydrocarbon accumulation events, and both of which were ultimately controlled by regional tectonism and local geological factors.
WOS关键词THERMOCHEMICAL SULFATE REDUCTION ; ORDOVICIAN CARBONATES ; SOURCE AGES ; ISOTOPIC COMPOSITION ; RESIDENCE TIMES ; ILLINOIS BASIN ; TRACE-ELEMENTS ; CRUSTAL FLUIDS ; NATURAL I-129 ; SEA-WATER
资助项目Natural Science Foundation of China[41503051] ; National Petroleum Project[2017ZX05008-003] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA14010102]
WOS研究方向Geology
语种英语
WOS记录号WOS:000451360000036
出版者ELSEVIER SCI LTD
资助机构Natural Science Foundation of China ; National Petroleum Project ; Strategic Priority Research Program of the Chinese Academy of Sciences
源URL[http://ir.ieecas.cn/handle/361006/14543]  
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.Chinese Acad Sci, Guangzhou Inst Ire Geochem, SKLOG, 511 Kehua St, Guangzhou 510640, Guangdong, Peoples R China
3.PetroChina, Tarim Oilfield Co, Kuerle 841000, Peoples R China
4.Chinese Acad Sci, Inst Earth Environm, Shaanxi Key Lab Accelerator Mass Spectrometry Tec, Xian AMS Ctr,SKLLQG, 97 Yanxiang St, Xian 710061, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Jian,Liu, Dayong,Hou, Xiaolin,et al. Origin and evolution of oilfield waters in the Tazhong oilfield, Tarim Basin, China, and their relationship to multiple hydrocarbon charging events[J]. MARINE AND PETROLEUM GEOLOGY,2018,98:554-568.
APA Chen, Jian.,Liu, Dayong.,Hou, Xiaolin.,Fan, Yukun.,Jia, Wanglu.,...&Xiao, Zhongyao.(2018).Origin and evolution of oilfield waters in the Tazhong oilfield, Tarim Basin, China, and their relationship to multiple hydrocarbon charging events.MARINE AND PETROLEUM GEOLOGY,98,554-568.
MLA Chen, Jian,et al."Origin and evolution of oilfield waters in the Tazhong oilfield, Tarim Basin, China, and their relationship to multiple hydrocarbon charging events".MARINE AND PETROLEUM GEOLOGY 98(2018):554-568.

入库方式： OAI收割

来源：地球环境研究所

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