Seepage system of oil-gas and its exploration in Yinggehai Basin located at northwest of South China Sea
Seepage systems of oil-gas in Yinggehai Basin are divided into two types, namely: “micro-seepage”, which is presented by gas chimneys and pockmarks; and “macro-seepage”, which is also called oil-gas outflow; and, in addition, the combination of the two basic types. Among the oil seepage systems, the...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2017-02-01
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| Series: | Journal of Natural Gas Geoscience |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468256X17300019 |
| _version_ | 1797761975093035008 |
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| author | Jiaxiong He Wei Zhang Zhenquan Lu |
| author_facet | Jiaxiong He Wei Zhang Zhenquan Lu |
| author_sort | Jiaxiong He |
| collection | DOAJ |
| description | Seepage systems of oil-gas in Yinggehai Basin are divided into two types, namely: “micro-seepage”, which is presented by gas chimneys and pockmarks; and “macro-seepage”, which is also called oil-gas outflow; and, in addition, the combination of the two basic types. Among the oil seepage systems, the combined seepage system at Yingdong Slope of Yinggehai Basin is the most eye-catching, and gas chimneys and pockmarks micro-leakage systems in mud diapir zones in the central part of the basin are very common. Both the indications of large-scale oil-gas outflow at Yingdong Slope, which have been booming for a hundred years; and the occurrence of pockmarks at the central mud diapir belt, along with the chaotic seismic reflection of widely-distributed shallow gas chimneys—have shown that hydrocarbon in this area is sufficient and oil-gas is now in dynamic equilibrium of the processes of accumulation, migration, gathering and dispersing. It builds up good conditions for the accumulation, migration, gathering and reserving of oil and gas. However, it must be noted that the results of oil-gas exploration at Yingdong Slope didn't turn out to be satisfactory, despite the presence of oil-gas outflow and gas chimney combined seepage systems. So, strengthen synthesized analysis and study on oil-gas seepage systems and on the conditions for accumulation, migration, gathering and dispersing; the forecasting and evaluation to the advantageous conditions for enriched oil and gas zones; and trap preservation in accordance with the dynamic balance theories; are of significant importance for purposes of exploration. |
| first_indexed | 2024-03-12T19:21:44Z |
| format | Article |
| id | doaj.art-47772c1c98ff4dc98f0056f59c62fced |
| institution | Directory Open Access Journal |
| issn | 2468-256X |
| language | English |
| last_indexed | 2024-03-12T19:21:44Z |
| publishDate | 2017-02-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Natural Gas Geoscience |
| spelling | doaj.art-47772c1c98ff4dc98f0056f59c62fced2023-08-02T05:07:28ZengKeAi Communications Co., Ltd.Journal of Natural Gas Geoscience2468-256X2017-02-0121294110.1016/j.jnggs.2017.01.001Seepage system of oil-gas and its exploration in Yinggehai Basin located at northwest of South China SeaJiaxiong He0Wei Zhang1Zhenquan Lu2Key Laboratory of Marginal Sea Geology, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, ChinaKey Laboratory of Marginal Sea Geology, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, ChinaOil & Gas Survey, China Geological Survey, Beijing 100029, ChinaSeepage systems of oil-gas in Yinggehai Basin are divided into two types, namely: “micro-seepage”, which is presented by gas chimneys and pockmarks; and “macro-seepage”, which is also called oil-gas outflow; and, in addition, the combination of the two basic types. Among the oil seepage systems, the combined seepage system at Yingdong Slope of Yinggehai Basin is the most eye-catching, and gas chimneys and pockmarks micro-leakage systems in mud diapir zones in the central part of the basin are very common. Both the indications of large-scale oil-gas outflow at Yingdong Slope, which have been booming for a hundred years; and the occurrence of pockmarks at the central mud diapir belt, along with the chaotic seismic reflection of widely-distributed shallow gas chimneys—have shown that hydrocarbon in this area is sufficient and oil-gas is now in dynamic equilibrium of the processes of accumulation, migration, gathering and dispersing. It builds up good conditions for the accumulation, migration, gathering and reserving of oil and gas. However, it must be noted that the results of oil-gas exploration at Yingdong Slope didn't turn out to be satisfactory, despite the presence of oil-gas outflow and gas chimney combined seepage systems. So, strengthen synthesized analysis and study on oil-gas seepage systems and on the conditions for accumulation, migration, gathering and dispersing; the forecasting and evaluation to the advantageous conditions for enriched oil and gas zones; and trap preservation in accordance with the dynamic balance theories; are of significant importance for purposes of exploration.http://www.sciencedirect.com/science/article/pii/S2468256X17300019Oil-gas seepage systemOutflow of oil-gas/gas chimneyMacro-seepage/micro-seepageTrap conditionsYinggehai BasinSouth China Sea |
| spellingShingle | Jiaxiong He Wei Zhang Zhenquan Lu Seepage system of oil-gas and its exploration in Yinggehai Basin located at northwest of South China Sea Journal of Natural Gas Geoscience Oil-gas seepage system Outflow of oil-gas/gas chimney Macro-seepage/micro-seepage Trap conditions Yinggehai Basin South China Sea |
| title | Seepage system of oil-gas and its exploration in Yinggehai Basin located at northwest of South China Sea |
| title_full | Seepage system of oil-gas and its exploration in Yinggehai Basin located at northwest of South China Sea |
| title_fullStr | Seepage system of oil-gas and its exploration in Yinggehai Basin located at northwest of South China Sea |
| title_full_unstemmed | Seepage system of oil-gas and its exploration in Yinggehai Basin located at northwest of South China Sea |
| title_short | Seepage system of oil-gas and its exploration in Yinggehai Basin located at northwest of South China Sea |
| title_sort | seepage system of oil gas and its exploration in yinggehai basin located at northwest of south china sea |
| topic | Oil-gas seepage system Outflow of oil-gas/gas chimney Macro-seepage/micro-seepage Trap conditions Yinggehai Basin South China Sea |
| url | http://www.sciencedirect.com/science/article/pii/S2468256X17300019 |
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