基于地震信息的三维储层构型建模

3D Reservoir Architecture Modeling Based on Seismic Data

刘舒 王乐闻 阴国锋 赵晨 马美媛 史进

LIU Shu WANG Lewen YIN Guofeng ZHAO Chen MA Meiyuan SHI Jin

中国石油化工股份有限公司上海海洋油气分公司勘探开发研究院, 上海 200120; 中国石油化工股份有限公司上海海洋油气分公司, 上海 200120

Institute of Exploration and Development, SINOPEC Shanghai Offshore Oil & Gas Company, Shanghai 200120, China; SINOPEC Shanghai Offshore Oil & Gas Company, Shanghai 200120, China

针对海上的稀井网区，储层构型研究往往局限于二维定性研究，对于三维储层构型建模方面的研究目前还比较欠缺。以海外某油田B1油藏为研究对象，在传统储层构型“平面划界”研究的基础上，引入地震沉积学90°相位转换与地层切片的方法，进一步对构型单元垂向演化进行定性研究，并采用确定性建模地质模式预测的方法，对构型单元垂向演化进行定量刻画，建立“真3D”储层构型模型，解决了传统方法所建模型存在井间不符合地质规律的问题，并在此基础上，采用“相控建模”的思路，在“真3D”储层构型模型的控制下，依次建立三维岩相模型、三维储层参数模型。最终，研究区生产井的动态数据也证实了模拟模型可以较好反映油藏实际地质情况，从而验证了模型的可靠性。

For the wide well pace area of offshore oil field, most of the previous studies on reservoir architecture have been confined to the 2D qualitative research, and less has done with the 3D reservoir architecture modeling. Taking B1 reservoir, an overseas oilfield, as the study object, the authors brought in the 90-degree phase inversion and strata slicing technology of seismic sedimentology on the basis of "architecture boundaries" used in the traditional reservoir architecture, and qualitatively analyzed the vertical evolution of architectural elements. And then by adopting the predictive method of the deterministic geological modeling, the authors quantitatively analyzed the vertical evolution of architectural elements, established the 3D reservoir architecture model, and resolved some irrational issues occurred in the traditional modeling. According to the thought of facies-controlled modeling, together with the constraining of 3D reservoir architecture model, the 3D lithofacies model and reservoir parameter model were built successively. The dynamic data of production wells in the study area confirm the simulation model can reflect the geology very well, and also verify the reliability of this model.

https://doi.org/10.3969/j.issn.1008-2336.2018.02.036