沉积微相约束条件下的随机地质建模方法及应用研究

The Method and Application Study about Stochastic Modeling with Sedimentary Microfacies

以地质建模为主要研究对象,根据油田开发地质研究需要完善的方法技术,以建模方法研究为基础,进行了沉积微相约束地质建模综合研究.在分析目前国内外研究现状的基础上,针对我国开发地质研究工作的特点,提出根据测井解释成果,应用随机模拟的方法定量地开展沉积微相研究.应用沉积微相研究成果约束测井储层参数的分布,形成油藏数值模拟研究所需要的准确的储层三维地质模型,解决了常规油田开发地质研究过程中沉积相研究成果与储层参数分布无法有效结合的缺陷.应用与该方法相适应的IRMS软件成功实现了山东胜利油区孤东油田第七开发区西部上第三系馆陶组油藏精确的沉积微相模型,由此微相约束形成的油藏储层三维地质模型数据体直接应用于油藏数值模拟研究,应用效果及现场实施的效果良好.

Geological modeling is the main research object. According to the method and technology which the geological research of oilfield development required,the geological modeling with sedimentary microfacies is proceeding at the base of the modeling method.After analyzing geological modeling research status quo of the world at present, a sedimentary microfacies quantitativly research using the stochastic geological modeling method is put forward basing on logging interpretation aiming at the characteristic of development geology research of our country. Applying the sedimentary microfacies research outcome to restrict the distributing of reservoir logging parameter can produce rather exact geological model which reservoir simulation need and solve the disfigurement which sedimentary research outcome disconnect with reservoir parameter distribution. Applying IRMS software being on speaking terms with the method realize successfully the exact sedimentary microfacies model of Guantao reservoir of the west block of No. 7 region of GuDong oilfield in ShengLi region of ShanDong.The corresponding 3D reservoir model datum restricted by the microfacies is directly applied to reservoir simulation. The application effect is all right at producing scene .