收稿日期: 2013-11-07
修回日期: 2014-01-27
网络出版日期: 2014-08-10
Application of Double Critical DIVA Method of Abnormal Velocity Analysis in Reservoir Prediction
Received date: 2013-11-07
Revised date: 2014-01-27
Online published: 2014-08-10
层速度是判别地层岩性的一项重要参数,直接利用Dix公式计算地层层速度来判别岩性存在不确定性因素。双临界DIVA方法不需要直接计算地层层速度来进行岩性判别,利用钻井和测井资料得到纯砂岩和纯泥岩的层速度作为背景层速度,再根据地层顶界面实测的均方根速度由逆Dix公式来预测底界面的均方根速度,根据底界面实测均方根速度与预测均方根速度的差值来判别岩性。讨论了Dix公式的应用条件和逆Dix公式进行差异层间速度分析的优点,并且直接利用叠加速度进行双临界差异层间速度分析,应用在浊积砂岩的储层预测中,预测效果非常好,是一种非常有价值的地震勘探方法。
朱立群,王鸿升,李江海 . 双临界DIVA异常速度分析方法及其在储层预测中的应用[J]. 天然气地球科学, 2014 , 25(8) : 1252 -1260 . DOI: 10.11764/j.issn.1672-1926.2014.08.1252
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