正演模拟技术在碳酸盐岩溶洞响应特征研究中的应用
|
摘要
在塔里木盆地奥陶系碳酸盐岩储层识别中,"串珠状"反射是十分重要的地震响应特征之一。文中利用波动方程正演模拟技术,设计了不同的溶洞模型,分析了溶洞宽度和高度变化时对"串珠状"响应特征的影响。结果表明:溶洞宽度增加时,"串珠"响应振幅增强,但响应时间长度不变;溶洞高度增加时,"串珠"振幅呈先增大后减小的趋势,且响应时间长度变长。模型正演为进一步研究溶洞的响应机理、溶洞形状与"串珠"特征的关系提供了手段,从而为碳酸盐岩储层的半定量或定量预测提供了依据。
The "string bead" reflection is one of the important seismic response features in identification of Ordovician carbonation reservoir in Tarim Basin.The mechanism of "string beads" is very complex.Base on forward modeling of wave equation,some different models are designed,and the influence of cave width and height on "string bead" characteristics is analyzed.The result shows that the amplitude of "string bead" intensifies with the cave width increasing,but the length of "string bead" do not change.The amplitude of "string bead" firstly intensifies and then decreases with the cave height increasing,and the "string bead" lengthens.Forward modeling provides approach for further study of response mechanism of cave,cave shape and "string bead" features,and criterion for semi-quantitative and quantitative forecast of carbonate reservoir.
The "string bead" reflection is one of the important seismic response features in identification of Ordovician carbonation reservoir in Tarim Basin.The mechanism of "string beads" is very complex.Base on forward modeling of wave equation,some different models are designed,and the influence of cave width and height on "string bead" characteristics is analyzed.The result shows that the amplitude of "string bead" intensifies with the cave width increasing,but the length of "string bead" do not change.The amplitude of "string bead" firstly intensifies and then decreases with the cave height increasing,and the "string bead" lengthens.Forward modeling provides approach for further study of response mechanism of cave,cave shape and "string bead" features,and criterion for semi-quantitative and quantitative forecast of carbonate reservoir.
引文
[1]魏建新,狄帮让,王立华.孔洞储层地震物理模拟研究[J].石油物探,2008,47(2):156-160.
[2]滕团余,余建平,崔海峰,等.YH地区碳酸盐岩储层预测方法研究及应用[J].岩性油气藏,2008,20(2):119-123.
[3]姚姚,唐文榜.深层碳酸盐岩岩溶风化壳洞缝型油气藏可检测性的理论研究[J].石油地球物理勘探,2003,38(6):623-629.
[4]唐文榜,刘来祥,樊桂芳,等.溶洞充填物判识的频率差异分析技术[J].石油与天然气地质,2002,23(1):41-44.
[5]姚姚.菲涅尔带与洞缝型油气藏地震波场[J].石油物探,2005,44(5):491-494.
[6]何建军,刘家铎,鲁新便,等.基于模型正演的地震属性分析技术识别和划分碳酸盐岩储层缝洞单元[J].石油地球物理勘探,2009,44(4):472-477.
[7]李胜军,孙成禹,高建虎,等.地震波数值模拟中的频散压制方法分析[J].石油物探,2008,47(5):444-448.
[8]孙东,张虎权,王宏斌.碳酸盐岩溶洞体的空间定位与体积计算[C]∥《岩性油气藏》编辑部.2010年国际石油地球物理技术交流会会议专刊.兰州,2010:137-140.
[9]张永刚.复杂介质地震波场模拟分析与应用[M].北京:石油工业出版社,2007:174-206.
[10]张虎权,卫平生,潘建国,等.碳酸盐岩地震储层学[J].岩性油气藏,2010,22(2):14-17.
[11]王宏斌,张虎权,卫平生,等.碳酸盐岩地震储层学在塔中地区生物礁滩复合体油气勘探中的应用[J].岩性油气藏,2010,22(2):18-23.
[2]滕团余,余建平,崔海峰,等.YH地区碳酸盐岩储层预测方法研究及应用[J].岩性油气藏,2008,20(2):119-123.
[3]姚姚,唐文榜.深层碳酸盐岩岩溶风化壳洞缝型油气藏可检测性的理论研究[J].石油地球物理勘探,2003,38(6):623-629.
[4]唐文榜,刘来祥,樊桂芳,等.溶洞充填物判识的频率差异分析技术[J].石油与天然气地质,2002,23(1):41-44.
[5]姚姚.菲涅尔带与洞缝型油气藏地震波场[J].石油物探,2005,44(5):491-494.
[6]何建军,刘家铎,鲁新便,等.基于模型正演的地震属性分析技术识别和划分碳酸盐岩储层缝洞单元[J].石油地球物理勘探,2009,44(4):472-477.
[7]李胜军,孙成禹,高建虎,等.地震波数值模拟中的频散压制方法分析[J].石油物探,2008,47(5):444-448.
[8]孙东,张虎权,王宏斌.碳酸盐岩溶洞体的空间定位与体积计算[C]∥《岩性油气藏》编辑部.2010年国际石油地球物理技术交流会会议专刊.兰州,2010:137-140.
[9]张永刚.复杂介质地震波场模拟分析与应用[M].北京:石油工业出版社,2007:174-206.
[10]张虎权,卫平生,潘建国,等.碳酸盐岩地震储层学[J].岩性油气藏,2010,22(2):14-17.
[11]王宏斌,张虎权,卫平生,等.碳酸盐岩地震储层学在塔中地区生物礁滩复合体油气勘探中的应用[J].岩性油气藏,2010,22(2):18-23.
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