A New Gas-Content-Evaluation Method for Organic-Rich Shale Using the Fractionation of Carbon Isotopes of Methane

IMECH-IR > 流固耦合系统力学重点实验室

	A New Gas-Content-Evaluation Method for Organic-Rich Shale Using the Fractionation of Carbon Isotopes of Methane
	Cao GH(曹高辉)1,2 ; Zhang HX 3,4; Jiang WB(江文滨)1 ; Wu S5 ; Zhu D 6; Lin M(林缅)1,2
通讯作者	Zhu, Di(zhud@sderi.cn) ; Lin, Mian(linmian@imech.ac.cn)
发表期刊	SPE JOURNAL
	2019-12-01
卷号	24 期号:6 页码:2574-2589
ISSN	1086-055X
摘要	Gas content is a key parameter for the determination of the gas resources in unconventional reservoirs. In this study, we propose a novel method to evaluate the gas content of shale through a new perspective: fractionation of carbon isotopes of methane. At first, a bicomponent gas-convection/diffusion/adsorption model (BG-CDAM) is successfully built with consideration of the flow and adsorption difference between (CH4)-C-13 and (CH4)-C-12 in the nanoporous shale. A detailed understanding of the mechanism of fractionation of the isotopes is obtained for the first time and the Knudsen-diffusivity difference is identified as the dominant factor for fractionation according to the different molecular weights of the isotopes. Then, the simulated results of BG-CDAM and the measured data from an isotope-logging test are combined to determine the unknown parameters for gas-content calculation. The proposed method for organic shale is valid and useful to obtain the quantitative component proportion in gas content, such as lost gas, degassing gas and residual gas, or free gas and adsorption gas. Thus, this method could provide a promising means for the identification of sweet spots in shale-gas reservoirs. Moreover, the method might have the potential to economically and rapidly evaluate the remaining resources in producing wells in future applications.
收录类别	SCI
语种	英语
WOS记录号	WOS:000576053900009
关键词[WOS]	COUPLED MODEL ; DIFFUSION ; FLOW ; PERMEABILITY ; ADSORPTION ; TRANSPORT ; ROCKS ; COALS
WOS研究方向	Engineering
WOS类目	Engineering, Petroleum
资助项目	National Natural Science Foundation of China[41690132] ; National Natural Science Foundation of China[41574129] ; Chinese Academy of Sciences[XDA14010101] ; Major National Science and Technology Special Program of China[2017ZX05037-001] ; Sinopec Oilfield Service Corporation[SG15-28K]
项目资助者	National Natural Science Foundation of China ; Chinese Academy of Sciences ; Major National Science and Technology Special Program of China ; Sinopec Oilfield Service Corporation
论文分区	一类
力学所作者排名	1
RpAuthor	Zhu, Di ; Lin, Mian
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/85346
专题	流固耦合系统力学重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, Beijing, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China; 3.Peking Univ, Coll Engn, Beijing, Peoples R China; 4.Shandong Univ Sci & Technol, Shandong Prov Key Lab Deposit Mineralizat & Sedim, Qingdao, Shandong, Peoples R China; 5.Power Environm Energy Res Inst, Covina, CA USA; 6.Qilu Univ Technol, Energy Res Inst, Shandong Acad Sci, Jinan, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Cao GH,Zhang HX,Jiang WB,et al. A New Gas-Content-Evaluation Method for Organic-Rich Shale Using the Fractionation of Carbon Isotopes of Methane[J]. SPE JOURNAL,2019,24,6,:2574-2589.
APA	曹高辉,Zhang HX,江文滨,Wu S,Zhu D,&林缅.(2019).A New Gas-Content-Evaluation Method for Organic-Rich Shale Using the Fractionation of Carbon Isotopes of Methane.SPE JOURNAL,24(6),2574-2589.
MLA	曹高辉,et al."A New Gas-Content-Evaluation Method for Organic-Rich Shale Using the Fractionation of Carbon Isotopes of Methane".SPE JOURNAL 24.6(2019):2574-2589.

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