鄂尔多斯盆地延长油区延长组长_(10)储层特征研究

延长油田近年来在三叠系延长组长10层不断获得新发现,该层位已成为后期增储上产的重要接替层位之一。作者精确编制了长10层顶面构造图,研究构造对油藏的控制作用;根据岩石类型、岩石结构、测井资料等综合判识沉积环境,划分沉积相类型并研究其空间展布;绘制了砂体展布图并对展布特征进行了分析;分析了储层岩石类型、孔隙类型、物性特征和油藏特征;通过上述研究分析,可对后期勘探具有一定的指导意义。

Research on Reservoir Characteristics of Yanchang Formation Chang 10 Member in Yanchang Oilfield,Ordos Basin

In recent years,Yanchang oilfield company had continuous new discoveries in ChanglO layer of Triassic Yanchang Formation, the layer became one of the important replacement layers of increasing reserves and production in the later stage. In this paper, the ChanglO layer top structure map was precisely drawn, controlling effect of the structure on the reservoir was researched; aocording to the rock types, rock structures and well logging data, general depositional environment was identified, types of sedimentary facies were divided, and the spatial distribution of sand body was studied; the map of sandbody distribution was drawn ,and distribution characteristics are analyzed; rock types, pore types, physical properties and reservoir characteristics of the reservoir were analyzed, too.