一体化建模技术在涠洲A油田中的应用

涠洲A油田目前处于开发中期,储层非均质性强、对含水规律和剩余油分布规律不清楚是该油田生产过程中最突出的问题,这严重影响了后续开发方案的设计。为了更精确地描述储层分布及其物性在三维空间的展布特征,应用地震—测井—地质和开发生产资料,在综合地质研究的基础上进行一体化地质建模,分步建立了构造模型、沉积微相模型和微相控制下的储层物性参数模型,通过数值模拟历史拟合验证了该模型的准确性,在此基础上进行生产指标的预测,弄清了剩余油的分布特征,据此提出了下一步开发方案。涠洲A油田的成功应用表明,地震—测井—地质综合一体化建模技术可以为开发方案的制定、油田调整挖潜决策提供科学的地质模型。

Application of the integrated modeling technology in the Oilfield Weizhou A

The Oilfield Weizhou A is currently in a mid-development stage, and has encountered problems of strong heterogeneity of reservoirs, unclear understanding of water saturation and residual oil distribution during the oil production, which have seriously affected the design of subsequent development scheme. In order to accurately describe the distribution of reservoirs and their physical properties in three-dimensional space, an integrated geological modeling was created based on comprehensive geological study and integrated application of seismic-well logging geological data and development production data. Structural model, sedimentary microfacies model and reservoir property parameter model controlled by microfacies were then established. The accuracy of the models was verified through history matching of numerical simulation. Based on this, production targets were predicted, the distribution characteristics of residual oil were ascertained, and the next development plan was proposed. The successful application of this technology in the Oilfield Weizhou A indicates that the integrated modeling technology using comprehensive seismic-logging-geological data can provide scientific geological model for the establishment of development plan and adjustment and tapping of oilfields.