松辽盆地南部中央断隆带油气勘探前景分析

Hydrocarbon potential analysis in central fault-uplift zone of southern Song-Liao basin

中国新星石油公司华东石油局,南京 210011

East China Burean of Petroleum Geology, China Natioal Star Petroleum Corporation, Nanjin 210011

松辽盆地南部自中生代侏罗纪以来.经历了两个大的构造发展阶段,即侏罗纪—早日垩世营城期的断陷活动期和早日垩世登娄库期至晚白垩世明水期的大型坳陷盆地发育期。中央断隆带作为断陷期分割东西断陷区的构造高带,在坳陷期又被坳陷层所覆盖,并且仍然表现为构造高带,具有较有利的油气成藏条件,是今后油气勘探的主要前景区。

Since Jura,the south part of Song-Liao Basin has involoved two large structural dcvelopment phases,that is,thc fault activity phase from Jurassic to carly Cretaceous and the sag dexrelopment phase fTom carly Crctaceous Deng Lou Ku period to late Cretaceous Ming Shui period. Thc central fault - uplift zone,as a structural high in fault depression period, it seperated the depression into east and west parts,then was covered by sag layers in sag pcriod,and it still was a structural high now. The central fault -uplift zonc is advantagcous in reservoir composition condition and is the main potertial area for hydrocarbon exploration.