混合相位子波衰减特性与储层含气性预测——以千米桥潜山储层为例  

Absorption Properties of Mixed-phase Wavelet and Prediction of Gas Reservoir:Taking Qianmiqiao Buried Hill as An Example

作　　者：梁锋[1,2] 李建东[2] 索超[3] 谭振华[4] 宋玉辉 

机构地区：[1]中国地质大学,湖北武汉430074 [2]中国石油大港油田勘探开发研究院,天津300280 [3]中国石油大学(北京),北京102249 [4]中国石油大港油田勘探事业部,天津300280 [5]中国石油大港油田检测监督评价中心,天津300280

出　　处：《天然气地球科学》2014年第2期238-242,共5页Natural Gas Geoscience

摘　　要：黄骅坳陷千米桥潜山储集层裂缝系统发育,纵横向非均质性强,含气储集层横向预测困难。利用地震波吸收衰减属性实现储层预测的技术,能够提高储层与钻井的吻合度。首先提出了一种新的混合相位子波提取方法并进行了混合相位子波提取;其次对提取的子波进行不同频带能量变化特征分析,提取沿层的吸收参数;最后结合其他地震属性进行含气性综合预测,获得了良好的结果。The reservoir of Qianmiqiao buried hill developed fracture systems,whose anisotropies in vertical and horizontal are strong. Horizontal prediction of gas reservoir is difficult. Using absorption properties of seismic wave to predict reservoir,the congruency between reservoir and well-drilling data can be improved. In this text,a new approach is used to extract mixed-phase wavelet, then the change features of the extrac- ted wavelet in different band powers are analyzed, and the horizon absorption parameter is picked up. With these properties and other seismic properties, the result of gas reservoir prediction is good

关 键 词：子波 吸收衰减 储层预测 千米桥潜山 

分 类 号：TE132.14[石油与天然气工程—油气勘探]