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  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院页岩气与地质工程重点实验室
3D rock minerals by correlating XRM and automated mineralogy and its application to digital rock physics for elastic properties

文献类型：期刊论文

作者Hao, Jin2,3; Li, Guoliang2,3; Su, Jiao2,3; Yuan, Yuan2,3; Du, Zhongming2,3; Niu, Suyun2,3; Yang, Jijin1,2,3
刊名GEOPHYSICS
出版日期2021-07-01
卷号86期号:4页码:MR211-MR222
ISSN号0016-8033
DOI10.1190/GEO2020-0329.1
英文摘要Digital rock physics (DRP) is an emerging technique that has rapidly become an indispensable tool to estimate elastic properties. The success of DRP mainly depends on three factors: acquiring a 3D rock structure image, accurately identifying 3D minerals, and using a proper numerical simulation method. Shales present a substantial challenge for DRP owing to their heterogeneous structure, composition, and properties from micron to centimeter scale. To obtain a sufficiently large field-of view (FOV) image of a sample that reflects the detailed and representative internal structure and composition, we have developed a new DRP workflow to obtain large-FOV high resolution digital rocks with 3D mineralogical information. Using the "divide-and-stitch" technique, a long shale sample is divided into several subunits, imaged separately by high resolution X-ray microscopy (XRM), and then stitched to obtain a large-FOV 3D digital rock. An FOV of a rock cylinder (736 mu m in diameter, 2358 mu m in height, and 1 mu m resolution) is used as an example. By correlating XRM and automated mineralogy, a large-FOV 3D mineral digital rock is obtained from a shale sample. Six mineral phases are identified and verified by automated mineralogy, and four laminae are detected according to the grain size, which offer a new perspective to study sedimentary processes and heterogeneities at the millimeter scale. The finite-difference method is used to compute the elastic properties of the large-FOV 3D mineral digital rock, and the results of Young's modulus are within the limit of the Voigt/ Reuss bounds. It also reveals that there is a difference in simulated elastic properties in the four laminae. The large-FOV 3D mineral digital rock offers the potential to explore the relationship between elastic properties and mineral phases, as well as the heterogeneities of elastic properties at the millimeter scale.
WOS关键词SILURIAN LONGMAXI FORMATION ; RAY COMPUTED-TOMOGRAPHY ; SHALE-GAS-RESERVOIR ; SICHUAN BASIN ; MECHANICAL-PROPERTIES ; PORE-SCALE ; NANO-CT ; MODULI ; COMPACTION ; COMPUTATION
资助项目National Science and Technology Major Project[2016ZX05034-003] ; National Science and Technology Major Project[2017ZX05035-002] ; Key Research Program of the Institute of Geology and Geophysics, CAS[IGGCAS201903]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000685095300006
出版者SOC EXPLORATION GEOPHYSICISTS
资助机构National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS
源URL[http://ir.iggcas.ac.cn/handle/132A11/101876]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Yang, Jijin
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Hao, Jin,Li, Guoliang,Su, Jiao,et al. 3D rock minerals by correlating XRM and automated mineralogy and its application to digital rock physics for elastic properties[J]. GEOPHYSICS,2021,86(4):MR211-MR222.
APA Hao, Jin.,Li, Guoliang.,Su, Jiao.,Yuan, Yuan.,Du, Zhongming.,...&Yang, Jijin.(2021).3D rock minerals by correlating XRM and automated mineralogy and its application to digital rock physics for elastic properties.GEOPHYSICS,86(4),MR211-MR222.
MLA Hao, Jin,et al."3D rock minerals by correlating XRM and automated mineralogy and its application to digital rock physics for elastic properties".GEOPHYSICS 86.4(2021):MR211-MR222.

入库方式： OAI收割

来源：地质与地球物理研究所

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