相干数据分析技术在埕岛油田的应用
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摘要
采用常规三维地震勘探资料 ,一般难以得到隐藏在三维地震数据体中的断层和特殊地质体的清晰无偏差图像 ,利用相干数据体检测方法可以有效地解决这一问题。相干数据分析是通对地震道间波形相似性的计算 ,实现将三维振幅数据体向三维相似系数数据体的转换。介绍相干数据体计算法以及断层和特殊地质体在相干数据体上的准确成像方法 ,展示了相干属性体的良好应用前景。在埕岛油田馆陶组上段油藏的勘探开发过程中 ,利用该技术准确预测了断层及河道砂体的分布范围 ,指导了井位部署 ,取得了较好的经济效益。图 4参 8
Three dimensional seismic data imply the response of formation and lithology information underground. so it is very effective for solving geologic problem. Three dimensional seismic exploration is wide used in oil field. However,the traditional way is difficult to obtain clear and exact view of fault and special geobody. Coherency data can solve this problem effectively. By calculating the similarity of waveform convert the original amplitude seismic data to coherency data. Descript the algorithm of coherency data and the response of fault and special geobady in detail, it shows a good prospect of application of the coherence. In the process of exploration and production of Chengdao Oilfield,by applying coherent analysis technology,the distribution of fluvial sandbody precisely were forecasted. This guided the determination of well site. Very good economic and social benefit have been obtained.
Three dimensional seismic data imply the response of formation and lithology information underground. so it is very effective for solving geologic problem. Three dimensional seismic exploration is wide used in oil field. However,the traditional way is difficult to obtain clear and exact view of fault and special geobody. Coherency data can solve this problem effectively. By calculating the similarity of waveform convert the original amplitude seismic data to coherency data. Descript the algorithm of coherency data and the response of fault and special geobady in detail, it shows a good prospect of application of the coherence. In the process of exploration and production of Chengdao Oilfield,by applying coherent analysis technology,the distribution of fluvial sandbody precisely were forecasted. This guided the determination of well site. Very good economic and social benefit have been obtained.
引文
[1] 刘企英.利用地震信息进行油气预测[M].北京:石油工业出版社,1994.
[2] BahorichM ,FarmerS.3Dseismicdiscontinuityforfaultsandstratigraphicfeatures—Thecoherencecube[J].TheLeadingEdge,1995,14(10):10531058.
[3] 孙跃华.断层和地层特征的三维地震不连续性:相干数据体[J].国外油气勘探,1996,8(3):340346.
[4] 张延章,李淑恩,黄国平,等.地震切片的分类及应用价值[J].油气地质与采收率,2002,9(3):6769.
[5] 赵澄林,等.胜利油区沉积储层与油气[M].北京:石油工业出版社,1999.
[6] 郑和荣,林会喜,王永诗.埕岛油田勘探实践与认识[J].石油勘探与开发,2000,27(6):13.
[7] 徐英霞,高喜龙,杨鹏飞,等.埕岛油田馆陶组上段油藏地质模型[J].石油勘探与开发,2000,27(6):5355.
[8] 李阳,高喜龙,刘占军.多井测井约束地震反演技术在埕岛油田的应用[J].中国海上油气(地质),1998,12(1):6972.
[2] BahorichM ,FarmerS.3Dseismicdiscontinuityforfaultsandstratigraphicfeatures—Thecoherencecube[J].TheLeadingEdge,1995,14(10):10531058.
[3] 孙跃华.断层和地层特征的三维地震不连续性:相干数据体[J].国外油气勘探,1996,8(3):340346.
[4] 张延章,李淑恩,黄国平,等.地震切片的分类及应用价值[J].油气地质与采收率,2002,9(3):6769.
[5] 赵澄林,等.胜利油区沉积储层与油气[M].北京:石油工业出版社,1999.
[6] 郑和荣,林会喜,王永诗.埕岛油田勘探实践与认识[J].石油勘探与开发,2000,27(6):13.
[7] 徐英霞,高喜龙,杨鹏飞,等.埕岛油田馆陶组上段油藏地质模型[J].石油勘探与开发,2000,27(6):5355.
[8] 李阳,高喜龙,刘占军.多井测井约束地震反演技术在埕岛油田的应用[J].中国海上油气(地质),1998,12(1):6972.
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