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Pore Structure Alteration Characteristics of Different Mineralogical Composition Shale during Shale-Fracturing Fluid Physical-Chemical Interactions

文献类型：期刊论文

作者Sun, Zepeng3; Wang, Yongli1; Wei, Zhifu2; Ni, Yue3; Wu, Baoxiang2; Li, Jing2; Fan, Wenhua3; Wang, Gailing3; Li, Yunxiao3
刊名GEOFLUIDS
出版日期2019-11-15
卷号2019页码:13
ISSN号1468-8115
DOI10.1155/2019/5047643
英文摘要Hydraulic fracturing is widely applied to economic gas production from shale reservoirs, but the effect of the shale mineral composition on the physical-chemical reactions during hydraulic fracturing is still poorly understood. To develop a foundational understanding of chemical interactions occurring on shale with different mineralogical compositions, two different types of mineral composition marine shale (carbonate-poor and carbonate-rich) from the Niutitang Formation were reacted with slick water fracturing fluid in a laboratory reactor at 100 degrees C and 50 MPa for three days. To identify the changes of the pore structure characteristics during hydraulic fracturing, the field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), low-temperature nitrogen adsorption, and porosity measurement were performed on the original and treated shale samples. After the slick water treatment, the dissolution of pyrite in carbonate-poor shale (obtained from Youyang County, labeled as YY) was observed by FE-SEM and XRD analyses, while in carbonate-rich shale (obtained from Guzhang County, labeled as GZ), the carbonate dissolution was observed. Results from the low-temperature N-2 adsorption and porosity measurement demonstrated that the variation trend of pore structure characteristics for the YY and GZ shale samples was quite different after reacting with slick water fracturing fluid. For YY shale, the specific surface area, total pore volume, and porosity increased after the reaction, whereas an opposite trend was observed in the GZ shale. Moreover, the fractal dimension analysis illustrated that the pore surface became less rough and the pore structure became more complex in the YY shale, whereas the degree of pore surface roughness and pore structure complexity of the GZ shale was reduced. The results demonstrated that the initial mineralogical composition of shale played an important role in pore structure alteration during hydraulic fracturing.
WOS关键词SILURIAN LONGMAXI SHALES ; ORGANIC-RICH SHALES ; FRACTAL CHARACTERISTICS ; GEOCHEMICAL CHARACTERISTICS ; SPONTANEOUS IMBIBITION ; GAS-ADSORPTION ; ORDOS BASIN ; WATER ; EVOLUTION ; MARINE
资助项目National Natural Science Foundation of China[41831176] ; Excellent Doctors Come to Shanxi to Reward Scientific Research Projects[SXYBKY2018027] ; Chinese Academy of Sciences Key Project[XDB26020302] ; National Key R&D Program of China[2017YFA0604803]
WOS研究方向Geochemistry & Geophysics ; Geology
语种英语
WOS记录号WOS:000500809500002
出版者WILEY-HINDAWI
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Excellent Doctors Come to Shanxi to Reward Scientific Research Projects ; Excellent Doctors Come to Shanxi to Reward Scientific Research Projects ; Excellent Doctors Come to Shanxi to Reward Scientific Research Projects ; Excellent Doctors Come to Shanxi to Reward Scientific Research Projects ; Chinese Academy of Sciences Key Project ; Chinese Academy of Sciences Key Project ; Chinese Academy of Sciences Key Project ; Chinese Academy of Sciences Key Project ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Excellent Doctors Come to Shanxi to Reward Scientific Research Projects ; Excellent Doctors Come to Shanxi to Reward Scientific Research Projects ; Excellent Doctors Come to Shanxi to Reward Scientific Research Projects ; Excellent Doctors Come to Shanxi to Reward Scientific Research Projects ; Chinese Academy of Sciences Key Project ; Chinese Academy of Sciences Key Project ; Chinese Academy of Sciences Key Project ; Chinese Academy of Sciences Key Project ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Excellent Doctors Come to Shanxi to Reward Scientific Research Projects ; Excellent Doctors Come to Shanxi to Reward Scientific Research Projects ; Excellent Doctors Come to Shanxi to Reward Scientific Research Projects ; Excellent Doctors Come to Shanxi to Reward Scientific Research Projects ; Chinese Academy of Sciences Key Project ; Chinese Academy of Sciences Key Project ; Chinese Academy of Sciences Key Project ; Chinese Academy of Sciences Key Project ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Excellent Doctors Come to Shanxi to Reward Scientific Research Projects ; Excellent Doctors Come to Shanxi to Reward Scientific Research Projects ; Excellent Doctors Come to Shanxi to Reward Scientific Research Projects ; Excellent Doctors Come to Shanxi to Reward Scientific Research Projects ; Chinese Academy of Sciences Key Project ; Chinese Academy of Sciences Key Project ; Chinese Academy of Sciences Key Project ; Chinese Academy of Sciences Key Project ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/95809]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
地质与地球物理研究所_兰州油气中心
通讯作者Wang, Yongli; Wei, Zhifu
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, CAS Ctr Excellence Life & Paleoenvironm, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Petr Resources Res, Lanzhou 730000, Gansu, Peoples R China
3.Shanxi Agr Univ, Coll Resource & Environm, Taigu 030801, Peoples R China
推荐引用方式
GB/T 7714		 Sun, Zepeng,Wang, Yongli,Wei, Zhifu,et al. Pore Structure Alteration Characteristics of Different Mineralogical Composition Shale during Shale-Fracturing Fluid Physical-Chemical Interactions[J]. GEOFLUIDS,2019,2019:13.
APA Sun, Zepeng.,Wang, Yongli.,Wei, Zhifu.,Ni, Yue.,Wu, Baoxiang.,...&Li, Yunxiao.(2019).Pore Structure Alteration Characteristics of Different Mineralogical Composition Shale during Shale-Fracturing Fluid Physical-Chemical Interactions.GEOFLUIDS,2019,13.
MLA Sun, Zepeng,et al."Pore Structure Alteration Characteristics of Different Mineralogical Composition Shale during Shale-Fracturing Fluid Physical-Chemical Interactions".GEOFLUIDS 2019(2019):13.

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来源：地质与地球物理研究所

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