复杂断块区浊积岩储层描述方法研究及应用  

Research and Application of Description Method for Turbidite in Complex Fault Block

作　　者：商伟 Shang Wei(Geophysical Research Institute of Shengli Oilfield Branch Co.,Dongying,China)

机构地区：[1]中国石化胜利油田分公司物探研究院,山东东营

出　　处：《科学技术创新》2023年第6期61-64,共4页Scientific and Technological Innovation

摘　　要：以地震属性预测和反演技术为主的浊积岩储层描述方法在构造相对简单的地区应用效果好,然而对于构造复杂,断裂破碎的地区,该方法预测精度明显降低。基于相控属性建模的浊积岩有效储层描述方法,利用精细构造解释结果,建立三维构造模型,在构造模型的基础上,利用井震联合约束,建立岩相模型,此模型为约束条件,建立孔、渗属性模型。在辛镇地区沙三中浊积岩储层描述中,从岩相模型可计算出砂体的厚度,依据单砂体厚度大于3 m预测了储层分布范围,而通过孔隙度和渗透率等属性模型,划定标准(即:孔隙度大于10%、渗透率值大于50 mD)预测有效储层分布范围,预测结果与探明范围对比,吻合效果较好。Though through using seismic attribute and inversion-based methods in turbidite reservoir description we have acquired good results in relatively simple applications area,in complex structure and fractured areas,prediction accuracy reduced significantly.Therefore,This thesis propose an effective turbidite reservoir description method based on facies-controlling property modeling,which operates as building three-dimensional structural model applying Fine structural interpretation results,establishing facies model using well and seismic constraints,and then establishing porosity and permeability property model under facies model constraints.In the middle of Sha-shan member of Xin-zhen,we calculated the thickness of the sand body from facies model,and predicted reservoir distribution according to the stand that thickness of single sand body is greater than 3 m.Through attribute model such as porosity and permeability,we also predicted the effective reservoir distribution based on porosity values greater than 10%,and permeability greater than50 m D,and the range of prediction and proved area fit well.

关 键 词：相控属性建模 储层描述 约束条件 

分 类 号：P618.13[天文地球—矿床学]