中国海相油气田勘探实例(之一) 四川盆地罗家寨大型气田的发现和探明

罗家寨气田发现于2000年,是四川盆地迄今为止发现的储量规模最大的一个气田,2002年探明储量为581.08×108m3。其下三叠统飞仙关组储层由碳酸盐岩蒸发台地边缘优质鲕粒滩白云岩构成,圈闭面积大,构造幅度高,具有一定的埋藏隐蔽性。论述了气田的发现和探明过程,气藏地质的特征,以及对碳酸盐岩气藏勘探的启示。

Discovery and Exploration of Luojiazhai Gas Field,Sichuan Basin

Luojiazhai Gas Field,discovered in 2000, is the one that has been discovered so far with richest reserves in Sichuan Basin. The Lower Triassic Fei xianguan reservoir is composed of excellent oolitic shoal dolostone in the margin of evaporated carbonate rock platform. The reservoir is deep buriedin hiding with large trap area and hight. This paper demonstrates the discovered and proved history of the field, the geological characteristics of the gas reservoir and the revelation to exploration of carbonate gas reservoirs.