利用地震属性二次规划反演孔隙率参数
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摘要
本文在进行地震属性提取计算、组合优化的基础上 ,在测井孔隙率资料约束下 ,研究了应用地震属性进行孔隙率参数反演的方法——二次规划反演方法。即在提取地震属性的基础上 ,建立某口井地震属性与孔隙率关系的目标函数 ,以另一口井的地震属性与孔隙率关系建立约束条件 ,进行反演计算。在得到一口井反演结果基础上 ,外推到另一口井 ,并与另一口井结果进行对比 ,依次进行而取得反演结果。经井资料对比验证及对实际资料反演结果分析可知 ,本文方法可行 ,结果可靠
On the basis of detection,combination and optimization of seismic attributions and under the constraint of logging porosity data,the paper studied using seismic attributions for inversion of porosity parameters,in which quadric program inversion is adopted,that is,on the basis of detecting seismic attribution,the objective function of seismic attribution and porosity of some borehole is built up, the inversion calculation is carried out by taking the relation between seismic attribution and porosity of other borehole as a constrained condition.We calculated inversion for two boreholes and proved the results by extrapolating to second bolehole on the basis of inversive result of first borehole,the extrapolated inversive result of second borehole is compared with the calculated results for same borehole,and then inverse process as above mentioned from second to first borehole is carried out.The comparison with logging data and the analysis of real data inversion results showed that the method is feasible and the results are correct.
On the basis of detection,combination and optimization of seismic attributions and under the constraint of logging porosity data,the paper studied using seismic attributions for inversion of porosity parameters,in which quadric program inversion is adopted,that is,on the basis of detecting seismic attribution,the objective function of seismic attribution and porosity of some borehole is built up, the inversion calculation is carried out by taking the relation between seismic attribution and porosity of other borehole as a constrained condition.We calculated inversion for two boreholes and proved the results by extrapolating to second bolehole on the basis of inversive result of first borehole,the extrapolated inversive result of second borehole is compared with the calculated results for same borehole,and then inverse process as above mentioned from second to first borehole is carried out.The comparison with logging data and the analysis of real data inversion results showed that the method is feasible and the results are correct.
引文
[1] 杨文采.地球物理反演和层析成像.北京:地质出版社,1989
[2] 陈遵德.储层地震属性优化方法.北京:石油工业出版社,1998
[3] 吴文江,袁仪方.实用数学规划.北京:机械工业出版社,1993
[4] 张可村.工程优化的算法与分析.西安:西安交通大学出版社,1988
[5] 蔡大用,白峰杉.现代科学计算.北京:科学出版社,2000
[6] 楼顺天,施阳.基于MATL AB的系统分析与设计——神经网络.西安:西安电子科技大学出版社,2000
[2] 陈遵德.储层地震属性优化方法.北京:石油工业出版社,1998
[3] 吴文江,袁仪方.实用数学规划.北京:机械工业出版社,1993
[4] 张可村.工程优化的算法与分析.西安:西安交通大学出版社,1988
[5] 蔡大用,白峰杉.现代科学计算.北京:科学出版社,2000
[6] 楼顺天,施阳.基于MATL AB的系统分析与设计——神经网络.西安:西安电子科技大学出版社,2000
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