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Pore Structure Characterization of Clay Minerals in the Lower Karamay Formation Conglomerate Reservoir in the Junggar Basin and its Impact on Hydrocarbon Storage and Seepage

文献类型：期刊论文

作者Abitkazy, Taskyn2,3; Du SH(杜书恒)1; Xu, Feng2; Shi, Yongmin3
刊名ACTA GEOLOGICA SINICA-ENGLISH EDITION
出版日期2021-04-01
卷号95期号:2页码:558-569
ISSN号1000-9515
关键词oil conglomerate clay minerals micro-nano pore reservoir characterization Triassic Xinjiang
DOI10.1111/1755-6724.13887
通讯作者Du, Shuheng(dushuheng@imech.ac.cn)
英文摘要The micro-nano pore structure of conglomerate in the Lower Karamay Formation of the Xinjiang Oilfield, Junggar Basin, northern China is characterized to predict its impact on fluid reserves and seepage. Authigenic clay minerals are mainly kaolinite (67%), followed by an illite/smectite mixed layer (18%), illite (10%), and chlorite (5%). For kaolinite, pore throats between 0-200 nm are dominant, accounting for 90% of the total pore throats. For illite/smectite mixed layer, pore throats also between 0-200 nm account for nearly 80%, while pore throats between 200-500 nm only account for 15%. For illite, pore throats below 100 nm account for about 80%, while pore throats in the range of 100-500 nm only account for 20%. For chlorite, most throats are below 200 nm. The pore roundness of illite is the highest, while the pore roundness of chlorite is relatively lower. The lower limits of the dynamic and static pore throat radii are 42.128 nm and 72.42 nm, respectively. The theoretical contribution rates of the illite/smectite mixed layer, kaolinite, illite and chlorite to storage/seepage are 60%/45.86%, 52.72%/38.18%, 37.07%/28.78% and 32.97%/26.3%, respectively. Therefore, the contribution rates of clay minerals in the study area are as follows: illite/smectite mixed layer, kaolinite, illite and chlorite.
分类号Q3
WOS关键词MOLECULAR-DYNAMICS ; QUALITY EVOLUTION ; WATER SENSITIVITY ; CARDIUM FORMATION ; FORMATION DAMAGE ; SANDSTONES ; DIAGENESIS ; SHALE ; POROSITY ; THROAT
资助项目PetroChina Innovation Foundation[2019D-5007-0214] ; National Mega Project of Oil and Gas[2017ZX05013005-009]
WOS研究方向Geology
语种英语
WOS记录号WOS:000653317300016
资助机构PetroChina Innovation Foundation ; National Mega Project of Oil and Gas
其他责任者Du, Shuheng
源URL[http://dspace.imech.ac.cn/handle/311007/86910]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
2.CNPC, Res Inst Petr Explorat & Dev Co Ltd, Beijing 100083, Peoples R China;
3.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China;
推荐引用方式
GB/T 7714		 Abitkazy, Taskyn,Du SH,Xu, Feng,et al. Pore Structure Characterization of Clay Minerals in the Lower Karamay Formation Conglomerate Reservoir in the Junggar Basin and its Impact on Hydrocarbon Storage and Seepage[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2021,95(2):558-569.
APA Abitkazy, Taskyn,杜书恒,Xu, Feng,&Shi, Yongmin.(2021).Pore Structure Characterization of Clay Minerals in the Lower Karamay Formation Conglomerate Reservoir in the Junggar Basin and its Impact on Hydrocarbon Storage and Seepage.ACTA GEOLOGICA SINICA-ENGLISH EDITION,95(2),558-569.
MLA Abitkazy, Taskyn,et al."Pore Structure Characterization of Clay Minerals in the Lower Karamay Formation Conglomerate Reservoir in the Junggar Basin and its Impact on Hydrocarbon Storage and Seepage".ACTA GEOLOGICA SINICA-ENGLISH EDITION 95.2(2021):558-569.

入库方式： OAI收割

来源：力学研究所

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