【摘要】 针对王官屯油田官142断块侏罗系厚储层的特点,以取芯井岩芯分析资料为基础,应用因子分析的方法,将厚约50 m的砂砾岩层划分为13个流动单元,分为A、B、C、D四类。在流动单元划分的基础上,根据各类沉积相标志,将目的层确定为辫状河沉积相,大面积分布的辫状水道、心滩为该区储层沉积的主体。为了进一步精细划分沉积微相,应用各类岩性与泥质体积分数、声波时差、电阻率的交汇图,建立了各类沉积微相-岩石相的岩性、物性、电性划分标准,实现了沉积微相的精细划分。其与流动单元的空间配置关系决定了剩余油分布的差异性。这种基于流动单元划分沉积微相的方法是依据储层渗流性质的差异将储层划分成符合其渗流规律的层系,便于同油田开发的生产层系相结合,从而满足层系开发调整的需要。更多还原

【Abstract】 The thick glutenite in Wangguantun Oilfield is divided into 13 flow units,which are subdivided into to 4 types,A,B,C and D based on the characteristics of Jurassic thick reservoir of Guan142 block and the core data analysis and factor analysis.According to this division and various facies markers,the study area is determined to be braided river facies,in which the extensively distributed braid channel and diara are the main braid reservoirs.In order to acquire further fine facies division,the cross plot of lithology and shale content,acoustic and resistivity is applied to establish the criteria for the micro-facies and lithofacies classification and thus the micro-facies is finely divided.The space configuration of micro-facies and flow units determines the diversity of remaining oil distribution.The new division method based on the flow unit conforms with the vadose laws.Therefore,it is quite applicable in the production of the oilfield and hence satisfies the need of exploitation layers adjustment.更多还原