利用角道集剖面进行岩石物理性质分析
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摘要
通过角道集资料研究了砂泥岩层状储层中饱含油和饱含气后岩石物理性质存在地震属性的差异.通过应用射线参数法从偏移距剖面转换得到角道集剖面,得到大角度和小角度2个区间地震叠加道集,结果表明,不同角道集剖面中不同流体在砂泥岩层状介质中显示出了显著不同的时延差异属性.因此,利用角道集资料是一种进行砂泥岩储层岩石物理性质研究的有效方法,对在石油勘探和煤炭开采中监测地层中的流体(如水、油和气)具有一定的指导作用.
The seismic characteristics of the layered sand-mudstone media filled with oil and gas in their pores with different rock-physical property are studied by means of angle-gather data.Offset sections are transformed into angler-gather sections by ray-parameter method,and both big and small angle gathers are got.The processed results show that the angle-gather sections of the layered sand-mudstone media filled with different fluid present obviously different time-lapse attributes.Thus,it is an effective way to study the rock-physical characteristics of the sand-mudstone reservoir by means of angle-gather data.This method has the guiding significance for the monitoring of formation liquids (water,oil and gas) in the exploration and development of petroleum and coal.
The seismic characteristics of the layered sand-mudstone media filled with oil and gas in their pores with different rock-physical property are studied by means of angle-gather data.Offset sections are transformed into angler-gather sections by ray-parameter method,and both big and small angle gathers are got.The processed results show that the angle-gather sections of the layered sand-mudstone media filled with different fluid present obviously different time-lapse attributes.Thus,it is an effective way to study the rock-physical characteristics of the sand-mudstone reservoir by means of angle-gather data.This method has the guiding significance for the monitoring of formation liquids (water,oil and gas) in the exploration and development of petroleum and coal.
引文
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[2]Wang Z.Fundamentals of seismic rock physics[J].Geo-physics,2001,66(2):398-412.
[3]Adriansyah A,Mc Mechan G A.Analysis and interpreta-tion of seismic data from thin reservoir northwest Java Basin,Indonesia[J].Geophysics,2002,67(1):14-26.
[4]赵改善.油藏动态监测技术的发展现状与展望:时延地震[J].勘探地球物理进展,2005,28(3):157-168.
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