基于优选区域的地震属性融合重构技术  

Seismic attribute fusion and reconstruction technology based on optimal selection region

作　　者：唐世伟[1] 张向君 董建萍 闫庆学 TANG Shiwei;ZHANG Xiangjun;DONG Jianping;YAN Qingxue(Northeast Petroleum University ,Daqing 163318,China;Daqing Geophysical Exploration First Company ,Daqing 163357,China)

机构地区：[1]东北石油大学计算机与信息技术学院,大庆163318 [2]大庆物探一公司物探研究院,大庆163357

出　　处：《物探化探计算技术》2020年第5期603-608,共6页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：中国科技石油创新基金(2018D-5007-0302);黑龙江省博士后资助经费(LBH-Z18045)。

摘　　要：地震属性在储层预测中发挥着重要作用,但地震属性和储层特征之间的关系十分复杂,每一种地震属性都只对某些地质特征敏感,对于构造复杂、储层类型多样的复杂地区,利用单一属性进行储层预测存在多解性。研究发现,对于储层类型多样的复杂工区,单一属性对全区的储层预测精度很低,但在某些局部区域,预测精度却可能很高。基于此,提出一种基于优选区域的地震属性融合重构方法,利用计算机图形学的平移和变比变换,确定属性融合区域,形成一种地震属性重构图,用于全工区的储层预测。实际应用表明,基于优选区域的地震属性融合重构技术,既保留了所优选区域储层预测符合率高的局部特征,又使融合区域的边界过渡自然,提高了全工区的储层预测精度。Seismic attributes play an important role in reservoir prediction,but the relationship between seismic attributes and reservoir characteristics is very complex.Each kind of seismic attributes is only sensitive to some geological characteristics.For complex structures and diverse reservoir types,reservoir prediction using single attributes often has multiple solutions.It is found that for complex work areas with various reservoir types,the prediction accuracy of single attribute is often very low,but in some local areas,the prediction accuracy may be very high.Due to this,a fusion reconstruction method of seismic attributes based on optimal region is proposed.The fusion region is determined by translation and transformation of computer graphics,and a reconstruction map of seismic attributes is formed for reservoir prediction in the whole work area.Practical application shows that the seismic attribute fusion reconstruction technology based on the optimized region not only retains the local characteristics of high coincidence rate of reservoir prediction in the selected region,but also makes the boundary transition of the fusion region natural,and then improves the reservoir prediction accuracy of the whole work area.

关 键 词：地震属性 优选区域 融合重构 图形变换 融合区域 

分 类 号：P631.4[天文地球—地质矿产勘探]