苏里格气田地质随机建模研究

Reservoir random modeling of Sulige Gasfield

苏里格气田有效开发的一个关键因素是准确预测有效储层的分布规律 .为了克服开发评价早期井距大、井网稀的困难 ,采取了地震资料与随机建模相结合的方法来建立储层地质模型 .在进行了大量地质统计的基础上 ,首先建立了二维剖面模型 ,研究砂体的侧向连续性特征 ,然后使用三步建模方法 ,分别建立了储层骨架模型、沉积相模型和三维属性体模型 .利用所建立的模型进行三维可视化研究 ,可以确定有效储层的分布规律 。

In the early development period of Sulige Gasfield, its sparse well pattern makes the evaluation of development result difficult. For this reason, the geological models of the reservoir are established by combining seismic data with random modeling. Based on a lot of geological statistic data, two-dimensional section model firstly is built to study the lateral continuity of sand bodies, then three-step modeling method is used to build reservoir skeleton model, sedimentary facies model and three-dimensional attribute body model respectively. These models can be used to determine the distribution rule of effective reservoir, and the three-dimensional visual research of the models can provide the basic data for the optimization of development plan of the gasfield.