Yinggehai Basin Gas Exploration： Comparison with Jiyang Depression

• Published in: Journal of earth science (Wuhan, China) Vol. 23; no. 3; pp. 359 - 372
• Main Author: 万志峰 夏斌 吕宝凤 蔡周荣 刘维亮
• Format: Journal Article
• Language: English
• Published: China University of Geosciences China University of Geosciences 01.06.2012; Springer Nature B.V
• Subjects: Basins; Biogeosciences; Deposition; Depression; Diapirs; Earth and Environmental Science; Earth science; Earth Sciences; Gas exploration; Geochemistry; Geologic depressions; Geological time; Geology; Geotechnical Engineering & Applied Earth Sciences; High pressure; Natural gas exploration; Natural gas reserves; Oil and gas exploration; Overpressure; Plate tectonics; Sand; Strikes; 天然气储量; 天然气勘探; 异常地层压力; 沉积旋回; 沉积系统; 济阳坳陷; 莺歌海盆地; 隐蔽油气藏; ISEW, South China Sea, Yinggehai Basin; Jiyang depression; natural gas exploration; Yinggehai basin; subtle reservoir
• ISSN: 1674-487X; 1867-111X
• DOI: 10.1007/s12583-012-0256-3

Yinggehai（莺歌海） basin and Jiyang（济阳） depression experienced similar tectonic evo-lution,which is mainly controlled by the strike-slip faults.The strike pull-apart basins are characteris-tic by multiple deposition cycles,migration of deposition and subsidence center,and diversity deposi-tional systems.Furthermore,both basins show abnormal formation pressure.Compared with the oil and gas-rich Jiyang depression,Yinggehai basin developed the similar geological background that is favorable to the formation of funnel-shaped meshwork-carpet subtle reservoirs.Overpressure diapir body is the core of hydrocarbon accumulation in central diaper zone of Yinggehai basin.Driven by high pressure,oil and gas migrate along the funnel-shaped passage system into the overlying low-potential zone formed.The overlying sand bodies of overpressure diapirs are the favorable gas exploration zone.