油气储层参数建模的“复合相控模型”法

Method of composite-facies-controlled model used in the creative model of oil and gas reservoir parameters

利用沉积微相和油气水分布对砂岩油气储层的控制作用,提出了针对砂岩油气储层进行井间参数预测,研究砂岩厚度、有效厚度、孔隙度、渗透率、饱和度的平面分布,建立油气储层参数模型的方法——"复合相控模型"法。此方法的实质是实现了受地质和油气复合约束的井间参数预估,特别适用于井控不足的油气储层参数描述,是油气藏描述的一项实用技术方法。

Oil and gas sandstone reservoirs are not only controlled by sedimentary microfacies, but effected by conformation and lithologic characters. The fact is reflected in the oil/gas/water distribution. Using sedimentary microfacies and oil/gas/water distribution to control oil/gas sandstone reservoir physical properties, the paper puts forward a method of composite-facies- controlled model to predict physical property parameters of sandstone reservoirs between wells and to research the lateral distribution of sandstone thickness, effective thickness, reservoir porosity, permeability and saturation by building a model of oil/gas reservoir physical property parameters. The essence of the method is to achieve parameter prediction between wells compositely controlled by geological and oil/gas. The method is suitable for the oil/gas reservoir parameters discription without enough wells and is a practical and technical method of reservoir description.