the favorable secondly are underwater distributary channel and mouth bar of es2 group.
其次是沙二段水下分流河道以及河口坝发育区。
the main ore-controlling microfacies are distributary channel, underwater distributary channel and front sheet sand.
主要的控矿微相为分流河道、水下分流河道与前缘席状砂。
sand lens reservoirs and lithologic reservoirs which the underwater distributary channel sand cut by fault develop in syncline area.
向斜区主要发育水下分流河道被断层截切的断层巖性油藏和砂巖透镜体油藏。
underwater distributary channel sand porosity, permeability is relatively high, mouth bar sand sheet, followed by split between the gulf poor;
水下分流河道砂体孔隙度、渗透率相对较高,河口坝席状砂次之,分流间湾较差;
in research area, yanchang 4+5 sector to yanchang 3 underwater distributary channel sandbodys in delta front was north-east to south west, and were separated by interdistributary bay.
研究区长4+5—长3期三角洲前缘水下分流河道砂体均呈北东—南西向条带状展布,砂体之间被分流间湾分隔。
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.
砂砾巖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。
by the influence of river course, underwater distributary channel distributes alternating with interdistributary bay which forms the principal source-reservoir-seal assemblage mode.
受河道迁徙沖刷影响,水下分流河道和分流间湾相间分布,形成研究区主要生储盖组合形式。
aim to analyze the interlayer of the underwater distributary channel using the well log curve.
目的利用测井曲线资料识别水下分流河道砂体中的夹层。