测量储层多孔介质孔隙度及其分布的新方法

为了对储层岩样的孔隙结构和孔隙度分布的深入研究,应用工业CT技术,提出了一种测量储层岩样孔隙度及分布的有效方法—CT密度差测量法,并对某油田岩样进行了实际测量。结果说明,采用CT密度差法测量孔隙度及分布是有效的,与常规方法相比较,具有快速、精度高、不伤害岩样并能模拟油藏条件测量等特点,是检测储层岩样性质和跟踪地层流体的先进手段。

RESERVOIR CORE POROSITY AND POROSITY DISTRI-BUTION MEASUREMENT USING TECHNOLOGY OF-RAYS INDUSTRIAL COMPUTERIZED TOMOGRAPHY

This paper put forward a ICT (Industrial Computerized Tomography) measuring way of density difference which mea-sures the porosity distribution of reservoir core for the further studying of porous structure and the porosity distribution using technology of ICT, and the measuring way have been applied to measure the porosity and porosity distribution of a core samplefrom certain oilfield. The result indicates that the CT density difference method is effective to measure the porosity distribu-tion. The method is faster and more accurate than conventional methods, and it has also the merit, such as no damage to core sample and similar to formation condition. Therefore, it is an advanced method for measuring the rocks properties and follow-ing the tracks of formation fluid.