相控储层建模在胜南油田的应用

Application of facies-controlled reservoir modeling in Shengnan Oilfield

严申斌1, 李少华 邓恒

长江大学油气资源与勘探技术教育部重点实验室 湖北 荆州 434023 长江大学地球科学学院， 湖北 荆州 434023 长江大学信息与数学学院，湖北 荆州 434023

针对胜南油田钻井资料少，不同微相物性差别大等特点，为了提高随机建模的精度，降低模拟实现中的不确定性，提出了沉积微相控制下的（相控）储层建模方法。首先，利用序贯指示模拟方法建立能够表征储层较大规模非均质性的沉积微相模型；在沉积微相模型建立之后，采取相控物性参数建模方法，分小层分微相统计各种物性参数分布特征；然后利用序贯高斯模拟方法分别进行模拟，建立了研究区的孔隙度模型、渗透率模型和含油饱和度模型。结果证明按此方法建立的模型效果较好，客观反映了地质实际，为胜南油田下一步滚动勘探开发提供了地质依据。

A method of reservoir modeling constrained by sedimentary facies is proposed in order to improve the accuracy of the
simulation and decrease the uncertainties in simulation in terms of the features that drilling data are less and that the petrophysics
vary quickly within different microfacies in Shengnan Oilfield. At first,the 3D sedimentary microfacies model is established by
using the method of sequential indication simulation.Then, the petrophysics models, including porosity model, permeability model
and oil saturation model, are built under the control of microfacies model by using the method of sequential Gauss simulation,which
is that the petrophysics of different layers and different microfacies are calculated and simulated separately. The geological model
proved in this way is effective and it can be used to guide the following progressive exploration and development.