The dominant mineralogical triggers hindering the efficient development of the world's largest conglomerate oilfield

doi:10.1016/j.ijhydene.2024.02.061

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	The dominant mineralogical triggers hindering the efficient development of the world's largest conglomerate oilfield
	Du, Shuheng 3,4; Zhao, Anbang 2; Wei, Yun 1
刊名	INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
	2024-03-22
卷号	60 页码:688-701
关键词	Tight conglomerate Clay minerals TIMA Reservoir damage Hydrocarbon exploitation
ISSN号	0360-3199
DOI	10.1016/j.ijhydene.2024.02.061
通讯作者	Du, Shuheng(dushuheng@imech.ac.cn)
英文摘要	In the complex fluid environment of subterranean rocks, some mineral components are easily hydrated, which hinders the accumulation and utilization of hydrocarbon. However, the nature and distribution of these key substances remain unclear. This study aims to provide a fresh perspective on the substances that impede the storage and extraction of hydrocarbon of the world's largest conglomerate oilfield. Using a variety of qualitative, semi-quantitative, and quantitative methods, including X-ray diffraction, secondary electron imaging, elemental spectroscopy, and Tescan-Integration-Mineral-Analyzer (TIMA), our experimental results show: (1) For the first time, water-sensitive clay minerals on the surfaces of gravel particles in tight conglomerates in China have been identified. Although the matrix composition contains less than 4.2% clay minerals on average, certain gravels contain over 72.7% clay minerals. These clay minerals are primarily composed of smectite, which is highly water sensitive, followed by chlorite, which poses significant challenges to hydrocarbon extraction; (2) The distribution of clay minerals on a single gravel surface is relatively uniform, enabling their interaction with fracturing fluid and exacerbating reservoir degradation. The total content of the illite-smectite mixture in the conglomerate can reach approximately 12%, with skeleton particles (gravel) containing more than 30% of this mixture. There are significant differences in the degree of clayiness among different types of gravel, which can be classified as high clayey, medium clayey, or low clayey. The evenly distributed illite-smectite mixed layer on the gravel surface allows complete contact with the fracturing fluid, resulting in severe reservoir damage; (3) Gravel particles with a size range of 8.88 mu m-10.73 mu m contain the highest concentration of illite-smectite mixture, which is identified as a major factor contributing to reservoir damage.
资助项目	Youth Innovation Promotion Association CAS[2023021] ; Young Elite Scientists Sponsorship Program by CAST[YESS20220094] ; Young Elite Scientists Sponsorship Program by BAST[BYESS2023182] ; Beijing Natural Science Foundation[8232054] ; National Natural Science Foundation of China[41902132]
WOS关键词	SHALE ; PERMEABILITY ; MICROFRACTURES ; NANOPARTICLES ; SANDSTONE ; MECHANISM ; BASIN
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels
语种	英语
WOS记录号	WOS:001193993400001
资助机构	Youth Innovation Promotion Association CAS ; Young Elite Scientists Sponsorship Program by CAST ; Young Elite Scientists Sponsorship Program by BAST ; Beijing Natural Science Foundation ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/94914]
专题	力学研究所_非线性力学国家重点实验室
通讯作者	Du, Shuheng
作者单位	1.Xinjiang Oilfield Co, Res Inst Expt & Detect, Karamay 834000, Peoples R China 2.China Univ Geosci Beijing, Sch Energy, Beijing 100083, Peoples R China 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 4.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, Shuheng,Zhao, Anbang,Wei, Yun. The dominant mineralogical triggers hindering the efficient development of the world's largest conglomerate oilfield[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2024,60:688-701.
APA	Du, Shuheng,Zhao, Anbang,&Wei, Yun.(2024).The dominant mineralogical triggers hindering the efficient development of the world's largest conglomerate oilfield.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,60,688-701.
MLA	Du, Shuheng,et al."The dominant mineralogical triggers hindering the efficient development of the world's largest conglomerate oilfield".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 60(2024):688-701.