摘要
对于一个已经建立好的三维地质模型,单纯通过地震、井数据对模型进行修正精度不高.地震驱动建模作为一种充分整合地震数据的建模方法,可以充分挖掘地震中潜在的信息,通过地震驱动把地震残差转化为模型误差的修正量,从而实现模型的更新修正.基于此,本文提出地震正演循环迭代模型修正技术,并以实际工区为例阐述了该方法的技术流程.通过地震对比和井对比技术对模型修正结果进行了定性和定量评价,结果表明该方法能够降低模型修正后的累积误差,使模型与真实值更接近,更好的表征了储层,更准确的表征了储层非均质.
For 3 D geological model,model modifying accuracy is not high just simply by seismic and well data. Seismic driven modeling is a modeling method integrated seismic data and can fully tap the potential information in the seismic data. The seismic residual can be transferred into model error correction in this process. Finally,it realizes the update of model correction. Based on this,seismic forward modeling loop iteration model correction technology is proposed in this paper and it expounds the technical process of this method taking the actual work area as an example.The seismic contrast and well comparison has carried on the qualitative and quantitative evaluation for the result of model correction. It shows that the method can reduce the cumulative error of the revised model,make the model more closer to real value. So it indicates that the geologic model is more better characterization the reservoir,and accurately represents characteristics of reservoir heterogeneity.
作者
范廷恩
胡光义
陈飞
乐靖
刘振坤
王宗俊
马良涛
解超
FAN Ting-en;HU Guang-yi;CHEN Fei;LE Jing;LIU Zhen-kun;WANG Zong-jun;MA Liang-tao;XIE Chao(CNOOC Research Institute Ltd, Beijing 100028, China)
出处
《地球物理学进展》
CSCD
北大核心
2018年第2期581-589,共9页
Progress in Geophysics
关键词
地震驱动建模
地震残差
修正量
地震正演循环迭代模型修正技术
seismic forward modeling
seismic residual
correction value
seismic forward modeling loop iteration model modification technology
