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Molecular and carbon isotopic variation in 3.5 years shale gas production from Longmaxi Formation in Sichuan Basin, China
Zhang, Mingjie1; Tang, Qingyan1; Cao, Chunhui1,2; Lv, Zonggang3; Zhang, Tongwei1; Zhang, Dekuan3; Li, Zhongping1,2; Du, Li2
2018
Source PublicationMARINE AND PETROLEUM GEOLOGY
ISSN0264-8172
Volume89Pages:27-37
SubtypeArticle
AbstractA 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.
KeywordMolecular Composition Carbon Isotope Shale Gas Longmaxi Formation Sichuan BasIn In chIna
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.marpetgeo.2017.01.023
Funding OrganizationNational 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)
WOS KeywordORGANIC-MATTER ACCUMULATION ; LARGE IGNEOUS PROVINCE ; SOUTHERN SICHUAN ; GEOCHEMICAL CHARACTERISTICS ; MISSISSIPPIAN BARNETT ; ULTRAMAFIC INTRUSION ; METHANE ADSORPTION ; MASS-SPECTROMETRY ; THERMAL MATURITY ; MARINE SHALE
Indexed BySCI
Language英语
Funding OrganizationNational 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)
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000418976800004
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/93155
Collection兰州油气中心
Corresponding AuthorZhang, Mingjie; Tang, Qingyan
Affiliation1.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
Recommended Citation
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.
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