摘要
焉耆盆地侏罗系三工河组广泛发育由辫状河进积到湖泊中形成的辫状河三角洲。这种三角洲特征显著不同于其它三角洲,其主体是辫状分流河道和水下分流河道。宝浪油田含油层段主体为辫状分流河道,以心滩发育为主要特征,是典型的浅水缓坡粗粒辫状河三角洲沉积。
Braided river deltas,formed during progradation from braided rivers to lakes,are extensively developed in the Sangonghe Formation of Jurassic in Yanqi basin.This type of delta is markedly different with other types and its prin-ciple parts are braided distributary channel and under wa-ter distributary channel.The main oil-bearing intervals in Baolang oilfield are braided distributary channel sand with highly-developed river islands as its leading features,and are typical shallow ramp coarse deposits in braided river delta environment.
出处
《河南石油》
2002年第6期4-6,共3页
Henan Petroleum
