利用“同相轴下拉”地震反射特征预测苏里格气田气层  

Gas Layer Prediction of Sulige Gas Field by Means of "Event Pulldown"

作　　者：杜新江[1] 任春玲[1] 

机构地区：[1]华北油田勘探开发研究院,河北任丘062552

出　　处：《石油天然气学报》2008年第2期466-467,共2页Journal of Oil and Gas Technology

摘　　要：针对苏里格气田常用气层预测方法(AVO远近道振幅比法、小波变换法等)存在的问题,从模型试验出发,研究了利用"同相轴下拉"这一地震反射特征预测气层的可行性,并通过钻探实施证实,"同相轴下拉"是厚气层的有效指示。AVO far and near trace amplitude ratio method and wavelet transformation technology are commonly used for gas layer prediction in Sulige Gas Field,and 'event pulldown' method is less used.This paper studies the feasibility of using seismic reflection signature of 'event pulldown' for gas layer prediction on the basis of model experiment.In addition,it demonstrates through drilling practice that 'event pulldown' is an effective indicator of thick gas layer.

关 键 词：苏里格气田 气层预测 同相轴下拉 

分 类 号：P618.13[天文地球—矿床学] P631.4[天文地球—地质学]