The petroleum pool character of storage layers consist itself and the accumulation meshwork layers, and the latter include primary reservoir and secondary reservoir.
经过对各种油藏实例的分析，认为仓储层的成藏特征主要分为自身的成藏和与上网层有关的成藏，后者又分为原生和次生两种；
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。
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