濮城油田南区沙二上2+3油藏储层评价

沙二上2+3油藏是濮城油田的主要产油层系,剖析其储层性质,对油田的开发有重要的意义.从岩性、物性、孔隙性和非均质性等方面,对油藏储层进行评价.认为该砂岩储层物性整体上比较好,孔隙度和渗透率均较高,沉积相和成岩作用是储层物性的主要影响因素,按照王允城的储层分类评价标准属于Ⅰc、Ⅱ和Ⅲ类储层,但非均质性很严重,层内非均质性、层间非均质性和平面非均质性均以严重非均质为主.

Reservoir evaluation of the upper Es22+3 in the south area of Pucheng Oilfield

The upper Es22+3 oil reservoir is an important oil production series in Pucheng Oilfield.So the analysis the property of the reservoir is of great significance to the exploration of the oilfield.The lithology,physical property,pore structure and heterogeneity of the reservoir are evaluated.It is held that the sandstone reservoir is of good physical property on the whole:it has relatively high porosity and permeability.Sedimentary facies and diageneses are the main factors of influencing the physical property of the reservoir.According to the reservoir classification criterion of Wang Yun-cheng,the reservoir includes three types of reservoir (typeⅠc,Ⅱand Ⅲ).But their intrastratal,interstratal and plane heterogeneity is all very serious.