The results show that the mineral comparative maturity of sandstones increases with the distance from the fan-delta plain to the fan-delta front;
分析表明：从扇三角洲平原到扇三角洲前缘，矿物成分成熟度呈现递增的趋势，河口坝微相的长石砂岩最为发育；
Its reservoir with secondary porosity zone is also a key for petroleum pool formation, which is of distributary channel of fan delta front.
该构造储层属三角洲前缘亚相的水下分流河道微相沉积，并存在由成岩作用形成的次生孔隙发育带。
The subaqueous distributary channel clastic rock bodies in the fan delta front formed the main part of the fan delta and the most important oil and gas reservoirs.
扇三角洲前缘水下分流河道形成的碎屑岩体是扇三角洲沉积的主体部分，成为主要的油气储集体。
Physical properties of the sandy conglomerate reservoirs differ greatly in different depositional environments, and the best occurs in underwater distributary channel on fan delta front.
砂砾岩储层的物性随着沉积环境的不同表现出较大的差异，且以扇三角洲前缘亚相水下分流河道微相最好。
The subaqueous distributary channel is the main type of the fan delta front while the channel mouth bar is developed locally.
扇三角洲前缘砂体类型以水下分流河道为主，局部发育河口坝。
The fan deltaic body can be divided into three subfacies, named fan delta plain, fan delta front and pro-fan delta.
扇三角洲沉积体明显地可划分为：扇三角洲平原亚相、扇三角洲前缘亚相和前扇三角洲亚相。
There are three deltaic types developed in lacustrine strata, i. e. , normal, braid and fan deltas, which consist of delta plain, delta front and front delta.
在湖泊中存在三种三角洲类型，即正常三角洲，辫状三角洲和扇三角洲。
The microfacies and their distributions of fan delta front in Shuanghe oil field are analyzed in detail by using sealed coring data, highly dense well patterns and so on.
充分利用密闭取心、密井网等资料，精细剖析了双河油田扇三角洲前缘储层沉积微相及其分布。
On the basis of studying the sedimentary microfacies of fan delta front in the oilfield, stratified dynamic tes.
充分利用密闭取心、密井网等资料 ，精细剖析了双河油田扇三角洲前缘储层沉积微相及其分布。
But in the north part of the sub-sag, controlled by the syn-sedimentary fault, steep fault-step was developed with mainly deposition of sub-aqueous fan, turbidity fan, and front of fan-delta.
北部为受生长断层控制的陡坡断阶带，以典型的水下扇、浊积扇和扇三角洲近端前缘沉积为主。
It formed such association types as alluvial fan-fan delta-shallow coastal lake, delta front-shallow coastal lake-semi-deep lake, semi-deep lake shallow lake sedimentary system.
形成了冲积扇—扇三角洲—滨浅湖泊、三角洲前缘—滨浅湖—中深湖、中深湖—浅湖沉积体系组合型式。
It formed such association types as alluvial fan-fan delta-shallow coastal lake, delta front-shallow coastal lake-semi-deep lake, semi-deep lake shallow lake sedimentary system.
形成了冲积扇—扇三角洲—滨浅湖泊、三角洲前缘—滨浅湖—中深湖、中深湖—浅湖沉积体系组合型式。
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