摘要
以铸体薄片、扫描电镜等分析化验资料为基础，应用恒速压汞、核磁共振等储层评价新方法对岩石类型、孔隙结构进行分析。研究表明，该区长6储层物性相对较好，粒间孔发育，储层孔隙结构好，以小孔、微细喉为主，可动流体饱和度高，渗流能力强，有利于高效开发；储层孔隙结构、成岩相及储层润湿性是影响相渗特征的重要因素。
Based on the analysis data of the casting thin section and scanning electron micrograph, rock types and pore slructure are analyzed with application of new methods of reservoir evaluation of constant-velocity mercury intrusion method and nuclear magnetic. resonance analysis. Stndies show that the Chang6 reservoirs have relatively good properties, with intergranular pores developed. The reservoirs have good pore structures, mainly with small pores and miero-＆-fine throats. The movable fluid has high saturation and strong percolation capacity. That will benefit the efficient development. Reservoir pore structure, diagenetic faeies and reservoir wetta- bility are important factors to affect relative permeability characteristics.
关键词
姬塬油田
延长组
储层物性
渗流特征
Jiyuan Oilfieht
Yanchang Formation
reservoir properties
percolation characteristics
