随机建模在滴水泉区油藏描述中的应用

Application of random modeling technique in fine reservoir description in Dishuiquan Area

在新疆油田滴水泉滴12井区侏罗系八道湾组砂砾岩储层非均质建模中,针对储层描述的不确定性因素,利用井内外信息的随机性特点,综合运用测井数据、岩心描述数据、地震数据等多方面信息,以减少储层描述的不确定性。利用层序地层基准面旋回等时对比方法,进行单井单砂体细分对比,确定储层格架和沉积微相展布特点,建立地质数据库。在此基础上,用Petrel软件对该区块的油藏构造、沉积微相和油藏属性建立储层三维地质模型,从而使得油藏的非均质性描述和认识更为直观、合理,为油田增产提供了地质依据。

In the course of building heterogeneous geology model of Jurassic Badaowan Formation of Di12 District in Xinjiang Oilfield, facing uncertain factors of describing to reservoir, we use random of information of wells, logging data, core description, seismic data etc to reduce uncertain factors. Sand bodies among single wells were subdivided and compared with isochronic correlation method of sequence stratigraphic base-level cycles. Reservoir framework and sedimentary microfacies distribution characteristics are determined, and geological data base is set up. A 3D visualized geological model is established for reservoir structure, sedimentary microfacies and reservoir properties by using Petrel software. This technology makes the heterogeneous of reservoir better in cognition and provides a geological foundation to stimulate production of oilfield.