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Rapid Determination of Complete Distribution of Pore and Throat in Tight Oil Sandstone of Triassic Yanchang Formation in Ordos Basin, China

文献类型：期刊论文

作者Du SH(杜书恒)2; Shi YM1
刊名ACTA GEOLOGICA SINICA-ENGLISH EDITION
出版日期2020-06-01
卷号94期号:3页码:822-830
关键词complete distribution tight oil reservoir multi-precision imaging mathematical statistics
ISSN号1000-9515
DOI10.1111/1755-6724.13881
英文摘要This study aimed to investigate the complete distribution of reservoir space in tight oil sandstone combining casting slices, field emission scanning electron microscopy (FE-SEM), the pore-throat theory model, high-resolution image processing, mathematical statistics, and other technical means. Results of reservoir samples from the Xin'anbian area of Ordos Basin showed that the total pore radius curve of the tight oil sandstone reservoir exhibited a multi-peak distribution, and the peaks appeared to be more focused on the ends of the range. This proved that pores with a radius of 1-50,000 nm provided the most significant storage space for tight oil, indicating that special attention should be paid to this range of the pore size distribution. Meanwhile, the complete throat radius curve of the tight oil sandstone reservoir exhibited a multi-peak distribution. However, the peak values were distributed throughout the scales. This confirmed that the throat radius in the tight oil sandstone reservoir was not only in the range of hundreds of nanometers but was also widely distributed in the scale approximately equal to the pore size. The new rapid determination method could provide a precise theoretical basis for the comprehensive evaluation, exploration, and development of a tight oil sandstone reservoir.
分类号Q3
WOS关键词POROUS-MEDIA ; NATURAL-GAS ; HETEROGENEITY ; MIDDLE ; MODEL ; SCALE ; SIZE ; FLOW
WOS研究方向Geology
语种英语
WOS记录号WOS:000544351300023
资助机构National Natural Science Foundation of China[41902132] ; National Natural Science Foundation of China[11872363] ; National Natural Science Foundation of China[51861145314] ; PetroChina Innovation Foundation[2019D-5007-0214] ; Chinese Academy of Sciences (CAS) through the CAS Key Research Program of Frontier Sciences[QYZDJ-SSW-JSC019] ; CAS Strategic Priority Research Program[XDB22040401] ; National Science and Technology Mega Project of China[2017ZX05013005-009]
其他责任者Du Shuheng
源URL[http://dspace.imech.ac.cn/handle/311007/84777]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.Peking Univ, Oil & Gas Inst, Beijing 100871, Peoples R China
2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China;
推荐引用方式
GB/T 7714		 Du SH,Shi YM. Rapid Determination of Complete Distribution of Pore and Throat in Tight Oil Sandstone of Triassic Yanchang Formation in Ordos Basin, China[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2020,94(3):822-830.
APA 杜书恒,&Shi YM.(2020).Rapid Determination of Complete Distribution of Pore and Throat in Tight Oil Sandstone of Triassic Yanchang Formation in Ordos Basin, China.ACTA GEOLOGICA SINICA-ENGLISH EDITION,94(3),822-830.
MLA 杜书恒,et al."Rapid Determination of Complete Distribution of Pore and Throat in Tight Oil Sandstone of Triassic Yanchang Formation in Ordos Basin, China".ACTA GEOLOGICA SINICA-ENGLISH EDITION 94.3(2020):822-830.

入库方式： OAI收割

来源：力学研究所

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