It is found that this coufiguration will generally result in better linearity between the phase coujugation and object beam intensities and in a larger phase conjugating wavefront reflectivity.
理论和实验表明这种光路不仅可以使位相共轭皮与物光束的关系在线性区域内其斜率得到提高,而且可以有效地提高位相共轭波前反射率。
Study on AVO pre-stack inversion technology;
AVO叠前反演技术研究
In recent years,seismic pre-stack inversion becomes the hot point of seismic attribute and inversion study.
随着油气勘探的不断深入,岩性油气藏和隐蔽油气藏的勘探开发问题日益受到勘探学家们的关注,地震叠前反演技术成为近年来地震属性分析和反演研究的热点。
Application of prestack inversion in Sulige area;
叠前反演技术在苏里格地区的应用
The prediction accuracy for the effective reservoir can be improved by using prestack inversion to calculate elastic impedance and elastic parameters.
研究表明:大入射角的地震数据包含了丰富的储层AVO信息,通过叠前反演计算弹性阻抗及弹性参数,可提高有效储层预测精度。
The common-used prestack inversion often carries out approximate linear processing for non-linear objective function, which makes inverted results approach to the global optimum solution; otherwise, it is easy to fall into local minimum.
常用的叠前反演方法是对目标函数的非线性做近似线性化处理,使反演结果接近全局最优解,否则易陷入局部极小。
It can be classified into prestack inversion and poststack inversion, and poststack inversion can further be classified into trace integration, recursion inversion and model inve.
迭前反演主要指 AVO反演 ,它是地震剖面迭加以前利用反演振幅随炮检距变化的特征进行波阻抗反演 ;而迭后反演根据测井资料在其中所起作用大小分为 :道积分、递推反演、模型反演三种反演技术 。