摘要
以重力流沉积理论为基础，在金华地区大安寨段介屑灰岩中划分出颗料流和浊流两种不同类型的沉积物，其沉积模式为重力流湖底扇相；颗料流沉积物的储集性远优于浊流沉积物，该区高产井和不产井的交叉出现，原因在于高产井位于颗料流发育的网状分流水道之中，而不产井处在浊流为主的叠覆扇舌形体之上；可根据扇内水道的分布规律，预测有利的含油气区块。
Oh the basis of gravity flow theory.,two kinds of sediment, grain flow sediment andturbidity current sediment,have been distinquished in the liptodetrinite limestone ofDaanzhai Member in Jinhua area, Central Sichuan. The sedimentary model is lake-bottomfan of gravity flow. Grain flow sediments. have a much better accumulative property thanturbidity current sediments. In this area, the alternative distribution of high and low productivity wells lies in the fact that high--productivity wells are in netted separate waterwayswhere grainl flow sediments are rich while low--productivity wells are on repeated tongues offan where turbidity current sediments are rich. According to the distribution law of waterways in fans, favourable regions containing oil and gas call be predicted.
出处
《西南石油学院学报》
CSCD
1995年第3期8-15,共8页
Journal of Southwest Petroleum Institute
关键词
储集层模型
浊流
含油气性
沉积物
Sedimentary microphase
Reservoir model
Turbidity current
Lake-botttom fan
Characteristics containing oil and gas
Daanzhai member
Jin Hua area.
