The characteristics of low permeability reservoirs, gas origin, generation and charge in the central and western Xihu depression, East China Sea Basin
文献类型:期刊论文
作者 | Su, Ao1; Chen, Honghan1; Chen, Xu2; He, Cong3,4; Liu, Hongping1; Li, Qian5; Wang, Cunwu6 |
刊名 | JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
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出版日期 | 2018-05-01 |
卷号 | 53页码:94-109 |
关键词 | Low permeability reservoir Gas origin Gas maturity Gas charge East China Sea Basin |
ISSN号 | 1875-5100 |
DOI | 10.1016/j.jngse.2018.01.034 |
文献子类 | Article |
英文摘要 | Apart from conventional gas in the middle-shallow formation in the Xihu depression in the East China Sea Basin, low permeability gas sandstone layers in the middle-deep formation have recently been discovered. On the basis of integrated analysis of reservoir petrology and diagenesis, geochemistry of gas and source rocks, basin numerical modeling, gold-tube pyrolysis experiment of rocks and fluid inclusion, a comprehensive investigation of the characteristics of low-permeability reservoirs, gas origin, generation and charge in the sub-structural belts (West Slope Belt and West Sub Sag) has been performed. Strong mechanical compaction, filar authigenic illite, siliceous and carbonate cements are key factors for the formation of low permeability reservoirs. The comprehensive analysis of molecular components, stable carbon isotope compositions of gases and light hydrocarbons indicated that the low permeability gases in the WSB are mainly coal-derived and can be divided into two types: (1) mature gases sourced from local coal-measure rocks in the Pinghu Formation, (2) exogenous highly mature gases sourced from the coal-measure rocks in the Pinghu Formation in the WSS. Mature gases were injected into the low permeability reservoirs in the middle-lower Pinghu Formation at approximately 2.8Ma similar to 0Ma. In the meantime, partial highly mature gases generated from source rocks in the WSS also migrated to the WSB. On the whole, the gas charge in the WSB is characterized by dual-sourcing and late-stage. The low permeability gases in the WSS almost are highly mature and composed of most coal-derived gases generated from local coal-measure rocks in the Pinghu Formation and a small amount of oil-derived gases generated from local dark mudstones containing sapropelic-type organic matters in the Pinghu Formation. In addition, mature coal-derived gases generated from source rocks in the lower Huagang Formation are also present but very limited. The charge of highly mature gases in the low permeability reservoirs in the lower Huagang Formation in the WSS occurred at approximately 3.9Ma similar to 0Ma. |
WOS关键词 | NATURAL GASES ; SHELF BASIN ; RESOURCE-ASSESSMENT ; CONTINENTAL-SHELF ; ISOTOPE RATIOS ; CARBON ; OIL ; HYDROCARBONS ; HYDROGEN ; IDENTIFICATION |
WOS研究方向 | Energy & Fuels ; Engineering |
语种 | 英语 |
WOS记录号 | WOS:000432088700010 |
出版者 | ELSEVIER SCI LTD |
资助机构 | Technology Major Project of China(2011ZX05023-004-010) ; Technology Major Project of China(2011ZX05023-004-010) ; Technology Major Project of China(2011ZX05023-004-010) ; Technology Major Project of China(2011ZX05023-004-010) ; Technology Major Project of China(2011ZX05023-004-010) ; Technology Major Project of China(2011ZX05023-004-010) ; Technology Major Project of China(2011ZX05023-004-010) ; Technology Major Project of China(2011ZX05023-004-010) |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/88276] ![]() |
专题 | 地质与地球物理研究所_兰州油气中心 |
通讯作者 | Chen, Honghan; Chen, Xu |
作者单位 | 1.China Univ Geosci, Key Lab Tecton & Petr Resource, Educ Minist, Wuhan 430074, Hubei, Peoples R China 2.Yangtze Univ, Wuhan 430100, Hubei, Peoples R China 3.Chinese Acad Sci, Key Lab Petr Resources Gansu Prov, Lanzhou 730000, Gansu, Peoples R China 4.Chinese Acad Sci, Key Lab Petr Resources Res, Lanzhou 730000, Gansu, Peoples R China 5.Offshore Oil & Gas Co, Inst SINOPEC, Shanghai SHANGHAI200, Peoples R China 6.CNOOC Res Inst, Beijing 100027, Peoples R China |
推荐引用方式 GB/T 7714 | Su, Ao,Chen, Honghan,Chen, Xu,et al. The characteristics of low permeability reservoirs, gas origin, generation and charge in the central and western Xihu depression, East China Sea Basin[J]. JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,2018,53:94-109. |
APA | Su, Ao.,Chen, Honghan.,Chen, Xu.,He, Cong.,Liu, Hongping.,...&Wang, Cunwu.(2018).The characteristics of low permeability reservoirs, gas origin, generation and charge in the central and western Xihu depression, East China Sea Basin.JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,53,94-109. |
MLA | Su, Ao,et al."The characteristics of low permeability reservoirs, gas origin, generation and charge in the central and western Xihu depression, East China Sea Basin".JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING 53(2018):94-109. |
入库方式: OAI收割
来源:地质与地球物理研究所
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