常見例句雙語例句Its reservoir with secondary porosity zone is also a key for petroleum pool formation, which is of distributary channel of fan delta front.該構造儲層屬三角洲前緣亞相的水下分流河道微相沉積,并存在由成巖作用形成的次生孔隙發(fā)育帶。The frontier facies can be subdivided into underwater distributary channel subfacies, frontier sand subfacies and marginal sand sheet subfacies.前緣相又可進一步細分為水下分流河道亞相,前緣砂亞相和邊緣席狀砂亞相。Distributary channel sandstone is the best reservoir which has coarse granularity, good sorting, and low mica and develops intergranular pores.水下分流河道砂體是研究區(qū)最好的儲集層,粒度粗,分選好,云母等軟組分含量低,粒間孔發(fā)育。 返回 distributary channel