delta-plain facies

基本解释

Results Facies of Chang 6 Oil-bearing bed are delta front and delta plain.
结果长6油层沉积为湖泊三角洲前缘及三角洲平原沉积。
The Chang-61, with the NE-SW extension of the distributary channels alternated with the inter-distributary bays, consists of delta plain facies.
长6~1为三角洲平原亚相，分流河道和分流河道间沉积也呈北东—南西向条带状相间分布。
Triassic Yanchang deltaic oil-gas located in east of basin with two kinds of oil-gas reservoir sequence, the lacustrine facies delta foreset sand body and plain distributary sand body.
二是上三叠系延长组三角洲油气区，主要位于盆地东部，具有湖相三角洲前积砂体和平原分流河道砂体两种油、气藏序列。