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

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	A New Gas-Content-Evaluation Method for Organic-Rich Shale Using the Fractionation of Carbon Isotopes of Methane
	Cao GH(曹高辉)5,6; Zhang HX 3,4; Jiang WB(江文滨)6; Wu S 2; Zhu D 1; Lin M(林缅)5,6
刊名	SPE JOURNAL
	2019-12-01
卷号	24 期号:6 页码:2574-2589
ISSN号	1086-055X
通讯作者	Zhu, Di(zhud@sderi.cn) ; Lin, Mian(linmian@imech.ac.cn)
英文摘要	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.
分类号	一类
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]
WOS关键词	COUPLED MODEL ; DIFFUSION ; FLOW ; PERMEABILITY ; ADSORPTION ; TRANSPORT ; ROCKS ; COALS
WOS研究方向	Engineering
语种	英语
WOS记录号	WOS:000576053900009
资助机构	National Natural Science Foundation of China ; Chinese Academy of Sciences ; Major National Science and Technology Special Program of China ; Sinopec Oilfield Service Corporation
其他责任者	Zhu, Di ; Lin, Mian
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/85345]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位	1.Qilu Univ Technol, Energy Res Inst, Shandong Acad Sci, Jinan, Shandong, Peoples R China 2.Power Environm Energy Res Inst, Covina, CA USA; 3.Shandong Univ Sci & Technol, Shandong Prov Key Lab Deposit Mineralizat & Sedim, Qingdao, Shandong, Peoples R China; 4.Peking Univ, Coll Engn, Beijing, Peoples R China; 5.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China; 6.Chinese Acad Sci, Inst Mech, Beijing, 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.