利用孔隙度遗传反演约束储层地质模型

摘要

针对油田投产初期井距较大、井间储层发育状况难以预测的情况,应用遗传反演方法进行孔隙度反演.在地质建模过程中利用反演数据体约束孔隙度属性.以某油田东营组某小层为例进行地质建模.结果表明:应用遗传反演方法得到的孔隙度反演数据体可以在三维空间中较真实地反映出储层物性.利用孔隙度遗传反演数据体对对孔隙度模型进行约束的方法,相比传统地震约束方法,中间步骤少,准确性高,工作周期短,在实际工作中取得较好效果.%The case that when early in the oilfield production is discussed.The well spacing is larger,and itsdifficult to predict the status of interwell reservoir development,use genetic inversion method to make porosity in-version and use inversion data that in the process of geological medling to make the constraint effect of porosityproperties.And certain oilfield in groups with a small layer for example is used,discussed the process of thinking,principles,methods and application effect.Examples show that,the porosity inversion data where from the geneticinversion algorithm call trueer reflect reservioer physical property and the known geological understanding.Themethod that use porosity genetic algorithm to make the constiaint of porosity modeling,compared with the traditionalmethod of seismic constraint,intermediate steps are reduced.The accuracy is higher,the working cycle is shorter,it have achieved good effect in practical work.