马厂油田储层层次结构分析

Analysis on Reservoir Hierarchical Structure in Machang Oilfield

依据储层层次分析法 ,将马厂油田划分为地层段、地层亚段、砂层组、小层、单砂体、成因砂体等9个非均质层次 ;识别出了马厂油田的 6种基本结构要素 ,即河道砂体、河道间砂、前缘席状砂、砂坪砂、河道间泥和湖湾泥。在储层精细对比的基础上 ,以单砂体为制图单位建立了储层建筑结构模型。油田开发实践证明 ,所建模型与油田开发动态符合较好。

Based on the reservoir hierarchical analytical method, Machang Oilfield is divided into 9 heterogeneous hierarchies, such as stratigraphic member, submember, sand set, layer, sandbody and genetic sand etc, six basic structural elements including channel sand body, interchannel sand, frontal sand sheet, sand from a sand flat, interchannel mud and lake bay mud are recognized for Machang Oilfield. A reservoir architectural structure model is established by taking the sandbody as mapping unit on the basis of accurate reservoir comparison. The practice of oilfield development proves that the model is matched well with the oilfield production performance.