蒙特卡罗算法在地震反演储层预测中的应用
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摘要
蒙特卡罗方法具有处理大型复杂问题的优势。将蒙特卡罗方法与地震反演技术进行结合,并以大庆长垣油田密井网区为例,利用蒙特卡罗反演技术进行储层预测,显示:其结果的分辨率明显高于确定性反演的分辨率,较好地反映储层的非均质性;通过盲井检验,证实反演预测的砂体与井点的符合率较高。分析认为,蒙特卡罗反演技术综合了测井的垂向分辨率高和地震的横向分辨率高的优势,为决策者提供了更加丰富的储层模型,使最终的储层预测结果具有高精度、低风险,便于在油田开发阶段推广应用。
Monte Carlo method has the advantage of dealing with large complex problems.By combining Monte Carlo method with seismic inversion technique,Monte Carlo inversion technique was used for reservoir prediction by taking the example of dense well network in Changyuan oilfield of Daqing area.The resolution of result was obviously higher than that of certainty inversion,better reflecting reservoir heterogeneity.Blind wells tests confirmed the sandbody predicted by inversion matched well with wells points.The results showed Monte Carlo inversion technique combined the advantages of high vertical resolution of logging and seismic high lateral resolution,provided decision makers with richer reservoir models,and made the final reservoir prediction more precise and lower risky.As a result,it is advisable for the wider application of Monte Carlo inversion technique in oilfield development.
Monte Carlo method has the advantage of dealing with large complex problems.By combining Monte Carlo method with seismic inversion technique,Monte Carlo inversion technique was used for reservoir prediction by taking the example of dense well network in Changyuan oilfield of Daqing area.The resolution of result was obviously higher than that of certainty inversion,better reflecting reservoir heterogeneity.Blind wells tests confirmed the sandbody predicted by inversion matched well with wells points.The results showed Monte Carlo inversion technique combined the advantages of high vertical resolution of logging and seismic high lateral resolution,provided decision makers with richer reservoir models,and made the final reservoir prediction more precise and lower risky.As a result,it is advisable for the wider application of Monte Carlo inversion technique in oilfield development.
引文
[1]陈怀艳,曹芸,韩洁.基于蒙特卡罗法的测量不确定度评定[J].电子测量与仪器学报,2011,25(4):301-308.
[2]陈国栋,李娟娟,王晓燕.蒙特卡罗模拟在决策中的应用[J].中国管理信息化,2009,12(13):43-44.
[3]张锋,郭建芳,王新光.空气钻井条件下中子孔隙度测井响应的蒙特卡罗模拟[J].吉林大学学报,2010,40(1):209-213.
[4]赵勇.蒙特卡罗方法在胜坨油田剩余油挖潜中的应用[J].石油天然气学报,2011,33(6):288-230.
[5]吕铁良,王永刚,谢万学,等.稀疏脉冲反演技术在井间地震反演中的应用[J].石油物探,2007,46(1):58-63.
[6]Dubrule O,Thibaut M,Lamy P,et al.Geostatistical reservoiraracterization constrained by 3d seismic data[J].Petroleum sci ence,1998,4(2):30-35.
[7]Haa S A,Dubrule O G.Eostatistical inversion–A sequentialmethod for stochastic reservoir modeling constrained by seismicdata[J].First Break,1994,13(12):25-28.
[8]Rothman D H.Geostatistical inversion of 3D seismic data forthinsand delineation[J].Geophysics,1998,51(2):332-339.
[2]陈国栋,李娟娟,王晓燕.蒙特卡罗模拟在决策中的应用[J].中国管理信息化,2009,12(13):43-44.
[3]张锋,郭建芳,王新光.空气钻井条件下中子孔隙度测井响应的蒙特卡罗模拟[J].吉林大学学报,2010,40(1):209-213.
[4]赵勇.蒙特卡罗方法在胜坨油田剩余油挖潜中的应用[J].石油天然气学报,2011,33(6):288-230.
[5]吕铁良,王永刚,谢万学,等.稀疏脉冲反演技术在井间地震反演中的应用[J].石油物探,2007,46(1):58-63.
[6]Dubrule O,Thibaut M,Lamy P,et al.Geostatistical reservoiraracterization constrained by 3d seismic data[J].Petroleum sci ence,1998,4(2):30-35.
[7]Haa S A,Dubrule O G.Eostatistical inversion–A sequentialmethod for stochastic reservoir modeling constrained by seismicdata[J].First Break,1994,13(12):25-28.
[8]Rothman D H.Geostatistical inversion of 3D seismic data forthinsand delineation[J].Geophysics,1998,51(2):332-339.
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