渤南一区浊流储层特征

渤南一区储层砂体发育典型的低密度浊积序列,形成完整和不完整的鲍玛序列.该区砂体中辨识出砂体和泥质十种岩石相、九种岩相组合的基础上确定出浊流沟道、沟道间、席状浊积体和滑塌体等4种浊积砂体类型,总结了各砂体和测井响应特征.依据砂体类型和展布特征可将砂层分为3种类型:沟道型、席状浊积体型和滑溻体型.夹层的分布具有明显的层次性,层间夹层具有厚度大、展布广的特征,而层内夹层则进取度小,展布相对局限.

Reservoir Character of the Turbidite Sandstone in Bonan Oilfield

Low density turbidite sequence was well developed in Low Cretaceous in Zone 1 of Bonan Oilfield,Shandong Province.Based on the core,ten kinds of lithofacies which are shale and sandstones,nine kinds of lithofacies association and four kinds of turbidite sandstone which includes sheet like turbidite sandstone,channel sandstone,inter channel sandstone and sandstone which formed correlation,facies distribution were analyze.The reservoir can be divided into three kinds of layers,that is channelized type,sheets like type and failures,based on the facies and distrivution of sandstone which formed the layer.The study of the barriers indicates that the barriers between sand ests and in the sets are very different.the barriers between the sets are thicker and more widely spread than that in the sets.