【摘要】：探討南海北部興寧凹陷古近紀(jì)沉積充填特征,為超深水油氣勘探提供基礎(chǔ)地質(zhì)依據(jù)。結(jié)合鄰區(qū)研究成果,通過(guò)系統(tǒng)的地震層序地層學(xué)和地震相等綜合分析,表明興寧凹陷古近系文昌組、恩平組和珠海組之間均為不整合接觸;古近系共識(shí)別出12個(gè)Ⅲ級(jí)層序。文昌組、恩平組為陸相湖盆沉積,具有緩坡帶三角洲發(fā)育、緩坡淺水區(qū)濱淺湖發(fā)育、陡坡帶扇三角洲發(fā)育及凹陷中心部位半深湖-深湖發(fā)育的特點(diǎn);珠海組則為淺海三角洲沉積�？傮w的海侵沉積過(guò)程形成了恩平組湖相泥巖烴源巖與文昌組和珠海組砂巖儲(chǔ)層的時(shí)空組合,指示研究區(qū)具有一定的油氣勘探潛力。
[Abstract]:This paper discusses the characteristics of Paleogene sedimentary filling in Xingning Sag, northern South China Sea, and provides the basic geological basis for oil and gas exploration in ultra deep water. Combined with the research results of adjacent areas, through systematic seismic sequence stratigraphy and seismic equivalent comprehensive analysis, it is shown that there are unconformity contacts between Wenchang formation, Enping formation and Zhuhai formation of Paleogene in Xingning Sag, and 12 鈪，

本文編號(hào)：2334019