断裂是形成油气藏的一个主要因素，冲积扇、扇三角洲、生物礁、生物滩等岩性体是油气藏的主要储集体。
Fault is a chief factor for affecting oil-gas reservoir formation . The lithologic bodies such as alluvial fan , fan-delta , reef and bio-bank are the main oil-gas reservoir bodies .
三角礁