Molecular and carbon isotopic variation in 3.5 years shale gas production from Longmaxi Formation in Sichuan Basin, China

doi:10.1016/j.marpetgeo.2017.01.023

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 兰州油气中心

	Molecular and carbon isotopic variation in 3.5 years shale gas production from Longmaxi Formation in Sichuan Basin, China
	Zhang, Mingjie 1; Tang, Qingyan 1; Cao, Chunhui 1,2; Lv, Zonggang 3; Zhang, Tongwei 1; Zhang, Dekuan 3; Li, Zhongping 1,2; Du, Li 2
刊名	MARINE AND PETROLEUM GEOLOGY
	2018
卷号	89 页码:27-37
关键词	Molecular Composition Carbon Isotope Shale Gas Longmaxi Formation Sichuan BasIn In chIna
ISSN号	0264-8172
DOI	10.1016/j.marpetgeo.2017.01.023
文献子类	Article
英文摘要	A time series of produced shale gas samples from Lower Silurian Longmaxi Formation (Fm.) were collected from six production wells during 3.5 years production period from the Weiyuan and Changning shale gas pilots in Sichuan basin, China. The molecular compositions and carbon isotopes of CH4, C2H6, C3H8 and CO2, and the hydrogen isotope of methane were analyzed for these samples by an integrated method of gas chromatography combined with mass spectrometry. The results showed that the produced shale gases are dominated by CH4 (90.1-99.3%) with minor C2H6 (0.3-0.8%) and non-hydrocarbon gases, and have low wetness (0.3-0.8%). The non-hydrocarbon gases are mainly CO2 and N-2, and trace amount of He. The Longmaxi shale gases display completed reversal pattern of carbon isotopic compositions with carbon number (i.e., delta C-13(1) > delta C-13(2) > delta C-13(3)) except for Wells W201 and W201-H1 with normal patterns between C2H6 and C3H8 (i.e., delta C-13(2) < delta C-13(3)), and it is a mixture of oil cracking gas and kerogen cracking gas at high-over level of thermal maturity. Some CO2 (delta C-13(co2) ranging from-2.5 to-6.0%o) is mainly derived from the decomposition of carbonate minerals.
WOS关键词	ORGANIC-MATTER ACCUMULATION ; LARGE IGNEOUS PROVINCE ; SOUTHERN SICHUAN ; GEOCHEMICAL CHARACTERISTICS ; MISSISSIPPIAN BARNETT ; ULTRAMAFIC INTRUSION ; METHANE ADSORPTION ; MASS-SPECTROMETRY ; THERMAL MATURITY ; MARINE SHALE
WOS研究方向	Geology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000418976800004
资助机构	National 973 Program of China(2012CB214701) ; National 973 Program of China(2012CB214701) ; Public Interest Special Fund of China MLR(201511020) ; Public Interest Special Fund of China MLR(201511020) ; NSF of China(41502143 ; NSF of China(41502143 ; Key project of China MOE(311010) ; Key project of China MOE(311010) ; Research Fund for the Doctoral Program of Higher Education of China(20120211110023) ; Research Fund for the Doctoral Program of Higher Education of China(20120211110023) ; 41572136 ; 41572136 ; 41472070 ; 41472070 ; 41372095) ; 41372095) ; National 973 Program of China(2012CB214701) ; National 973 Program of China(2012CB214701) ; Public Interest Special Fund of China MLR(201511020) ; Public Interest Special Fund of China MLR(201511020) ; NSF of China(41502143 ; NSF of China(41502143 ; Key project of China MOE(311010) ; Key project of China MOE(311010) ; Research Fund for the Doctoral Program of Higher Education of China(20120211110023) ; Research Fund for the Doctoral Program of Higher Education of China(20120211110023) ; 41572136 ; 41572136 ; 41472070 ; 41472070 ; 41372095) ; 41372095) ; National 973 Program of China(2012CB214701) ; National 973 Program of China(2012CB214701) ; Public Interest Special Fund of China MLR(201511020) ; Public Interest Special Fund of China MLR(201511020) ; NSF of China(41502143 ; NSF of China(41502143 ; Key project of China MOE(311010) ; Key project of China MOE(311010) ; Research Fund for the Doctoral Program of Higher Education of China(20120211110023) ; Research Fund for the Doctoral Program of Higher Education of China(20120211110023) ; 41572136 ; 41572136 ; 41472070 ; 41472070 ; 41372095) ; 41372095) ; National 973 Program of China(2012CB214701) ; National 973 Program of China(2012CB214701) ; Public Interest Special Fund of China MLR(201511020) ; Public Interest Special Fund of China MLR(201511020) ; NSF of China(41502143 ; NSF of China(41502143 ; Key project of China MOE(311010) ; Key project of China MOE(311010) ; Research Fund for the Doctoral Program of Higher Education of China(20120211110023) ; Research Fund for the Doctoral Program of Higher Education of China(20120211110023) ; 41572136 ; 41572136 ; 41472070 ; 41472070 ; 41372095) ; 41372095)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/93155]
专题	地质与地球物理研究所_兰州油气中心
通讯作者	Zhang, Mingjie; Tang, Qingyan
作者单位	1.Lanzhou Univ, Sch Earth Sci, Key Lab Mineral Resources Western China Gansu, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Gansu Prov Key Lab Petr Resources Res, Key Lab Petr Resources, Lanzhou 730000, Gansu, Peoples R China 3.PetroChina Southwest Oil & Gas Field Co, Chengdu 646000, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Mingjie,Tang, Qingyan,Cao, Chunhui,et al. Molecular and carbon isotopic variation in 3.5 years shale gas production from Longmaxi Formation in Sichuan Basin, China[J]. MARINE AND PETROLEUM GEOLOGY,2018,89:27-37.
APA	Zhang, Mingjie.,Tang, Qingyan.,Cao, Chunhui.,Lv, Zonggang.,Zhang, Tongwei.,...&Du, Li.(2018).Molecular and carbon isotopic variation in 3.5 years shale gas production from Longmaxi Formation in Sichuan Basin, China.MARINE AND PETROLEUM GEOLOGY,89,27-37.
MLA	Zhang, Mingjie,et al."Molecular and carbon isotopic variation in 3.5 years shale gas production from Longmaxi Formation in Sichuan Basin, China".MARINE AND PETROLEUM GEOLOGY 89(2018):27-37.