贝叶斯-克里金估计方法在变速成图中的应用
|
摘要
简述了贝叶斯-克里金估计方法的原理,提出将贝叶斯-克里金估计方法应用于变速成图的思路。具体做法是:将目的层对应的井点速度作为观测数据,对应的地震速度作为猜测数据,对目的层速度进行贝叶斯-克里金估计预测;对估计速度进行时深转换,最终得到区域构造深度图。将该方法应用于塔里木盆地某研究区块的变速成图中,有效提高了该区构造解释精度:在井点位置,估计深度与观测深度的相对误差小于0.4%;在无井控的地方,构造变化比较稳定并符合实际地质情况。应用结果表明,将贝叶斯-克里金估计方法应用于变速成图的思路是可行的。
The principles of Bayesian-Kriging estimation method were introduced briefly.Then,we proposed to apply Bayesian-Kriging method in variable velocity mapping.Firstly,taking the velocity at well positions corresponding to the target formation as observation data,and the responding seismic velocity as guess data,the velocity of target formation is predicted by Bayesian-Kriging estimation method.Finally,the regional tectonic depth map will be generated from the time-depth convention of estimated velocity.After applying this method to the variable velocity mapping of some area in Tarim Basin,the accuracy of the structure maps has been effectively improved.At the well positions,the relative error between the estimated depth and observation depth is below 0.4%;at the area without the constraint of well data,the structures have stable variation and are coinciding with the actual geological conditions.Therefore,applying the Bayesian-Kriging estimation method in variable velocity mapping is feasible and reasonable.
The principles of Bayesian-Kriging estimation method were introduced briefly.Then,we proposed to apply Bayesian-Kriging method in variable velocity mapping.Firstly,taking the velocity at well positions corresponding to the target formation as observation data,and the responding seismic velocity as guess data,the velocity of target formation is predicted by Bayesian-Kriging estimation method.Finally,the regional tectonic depth map will be generated from the time-depth convention of estimated velocity.After applying this method to the variable velocity mapping of some area in Tarim Basin,the accuracy of the structure maps has been effectively improved.At the well positions,the relative error between the estimated depth and observation depth is below 0.4%;at the area without the constraint of well data,the structures have stable variation and are coinciding with the actual geological conditions.Therefore,applying the Bayesian-Kriging estimation method in variable velocity mapping is feasible and reasonable.
引文
[1]高美娟,朱庆忠,张淑华,等.利用贝叶斯-克里金估计技术进行储层参数预测[J].石油地球物理勘探,1999,34(4):390-397Gao M J,Zhu Q Z,Zhang S H,et al.Reservoir pa-rameter prediction using Bayes-Kriging estimationtechnique[J].Oil Geophysical Prospecting,1999,34(4):390-397
[2]Henning M.Bayesian Kriging-merging observationand qualified guesses in Kriging[J].MathematicalGeology,1987,19(1):25-30
[3]李晓军,王长虹,朱合华,等.Kriging插值方法在地层模型生成中的应用[J].岩土力学,2009,30(1):157-162Li X J,Wang C H,Zhu H H,et al.Kriging interpo-lation and its application to generating stratum mod-el[J].Rock and Soil Mechanics,2009,30(1):157-162
[4]侯景儒,尹镇南,李维明,等.实用地质统计学[M].北京:地质出版社,1998:1-39Hou J R,Yin Z N,Li W M,et al.Applied geostatis-tics[M].Beijing:Geological Publishing House,1998:1-39
[5]王泽华,李庆.地质统计学方法在储层预测中的应用——以莫北油气田莫北9井区为例[J].新疆石油学院学报,2001,23(3):13-17Wang Z H,Li Q.Application of geological statisticalmethod in reservoir prediction[J].Journal of Xin-jiang Petroledm Institute,2001,23(3):13-17
[6]黄花香,曾涛,唐必锐,等.地质统计分析方法在鲕滩储层预测中的应用[J].石油物探,2003,43(3):275-277Huang H X,Zeng T,Tang B R,et al.Application ofgeostatistical analysis in prediction of oolitic reser-voir[J].Geophysical Prospecting for Petroleum,2003,43(3):275-277
[7]熊琦华,纪发华.地质统计学在油藏描述中的应用[J].石油大学学报(自然科学版),1995,19(01):115-120Xiong Q H,Ji F H.Application of geostatistics toreservoir description[J].Journal of the University ofPetroleum,1995,19(01):115-120
[8]年静波,汤磊,刘喜武,等.地质统计分析在地震资料砂泥岩分布预测中的应用[J].石油物探,2004,43(3):278-282Nian J B,Tang L,Liu X W,et al.Application ofgeostatistical analysis in prediction of sand/shaledistribution from seismic data:a case study[J].Geo-physical Prospecting for Petroleum,2004,43(3):278-282
[9]牛文杰,朱大培,陈其明,等.贝叶斯残余克里金插值方法的研究[J].工程图学学报,2001,2(1):68-76Niu W J,Zhu D P,Chen Q M,et al.Research ofBeyesian residual Kriging[J].Journal of EngineeringGraphics,2001,2(1):68-76
[10]方小洪.储层参数平面上的预测和空间展布——以克里金估计技术和径向基函数为例[D].成都:成都理工大学,2006:24-38Fang X H.Reservoir parameter forecast in plane andmop in the space[D].Chengdu:Chengdu Universityof Technology,2006:24-38
[2]Henning M.Bayesian Kriging-merging observationand qualified guesses in Kriging[J].MathematicalGeology,1987,19(1):25-30
[3]李晓军,王长虹,朱合华,等.Kriging插值方法在地层模型生成中的应用[J].岩土力学,2009,30(1):157-162Li X J,Wang C H,Zhu H H,et al.Kriging interpo-lation and its application to generating stratum mod-el[J].Rock and Soil Mechanics,2009,30(1):157-162
[4]侯景儒,尹镇南,李维明,等.实用地质统计学[M].北京:地质出版社,1998:1-39Hou J R,Yin Z N,Li W M,et al.Applied geostatis-tics[M].Beijing:Geological Publishing House,1998:1-39
[5]王泽华,李庆.地质统计学方法在储层预测中的应用——以莫北油气田莫北9井区为例[J].新疆石油学院学报,2001,23(3):13-17Wang Z H,Li Q.Application of geological statisticalmethod in reservoir prediction[J].Journal of Xin-jiang Petroledm Institute,2001,23(3):13-17
[6]黄花香,曾涛,唐必锐,等.地质统计分析方法在鲕滩储层预测中的应用[J].石油物探,2003,43(3):275-277Huang H X,Zeng T,Tang B R,et al.Application ofgeostatistical analysis in prediction of oolitic reser-voir[J].Geophysical Prospecting for Petroleum,2003,43(3):275-277
[7]熊琦华,纪发华.地质统计学在油藏描述中的应用[J].石油大学学报(自然科学版),1995,19(01):115-120Xiong Q H,Ji F H.Application of geostatistics toreservoir description[J].Journal of the University ofPetroleum,1995,19(01):115-120
[8]年静波,汤磊,刘喜武,等.地质统计分析在地震资料砂泥岩分布预测中的应用[J].石油物探,2004,43(3):278-282Nian J B,Tang L,Liu X W,et al.Application ofgeostatistical analysis in prediction of sand/shaledistribution from seismic data:a case study[J].Geo-physical Prospecting for Petroleum,2004,43(3):278-282
[9]牛文杰,朱大培,陈其明,等.贝叶斯残余克里金插值方法的研究[J].工程图学学报,2001,2(1):68-76Niu W J,Zhu D P,Chen Q M,et al.Research ofBeyesian residual Kriging[J].Journal of EngineeringGraphics,2001,2(1):68-76
[10]方小洪.储层参数平面上的预测和空间展布——以克里金估计技术和径向基函数为例[D].成都:成都理工大学,2006:24-38Fang X H.Reservoir parameter forecast in plane andmop in the space[D].Chengdu:Chengdu Universityof Technology,2006:24-38
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心