高频拓展处理技术在港东二区五断块的应用  

APPLICATION OF HIGH-FREQUENCY EXPANDING PROCESSING TECHNIQUE IN GANGDONG OILFIELD NO.2 FIVE BLOCK

作　　者：张会卿[1] 

机构地区：[1]大港油田勘探开发研究院,河北天津300280

出　　处：《新疆石油天然气》2015年第2期28-31,2,共4页Xinjiang Oil & Gas

基　　金：国家重大专项"高含水油田提高采收率新技术"(2008ZX05010)

摘　　要：港东二区五断块为曲流河沉积,砂体厚度薄,常见砂泥交互沉积,常规地震资料分辨能力有限,无法满足构造和储层研究需要。而反褶积处理方法由于受地震子波求取的不确定性影响,在实际应用中效果较差。高频拓展处理技术采用压缩子波的途径,在提高分辨率的同时,保持了原始地震数据的时频特性和相对振幅关系,层间反射细节得到丰富。经已知井验证吻合程度较高,为砂体预测提供了可靠的基础数据。Gangdong oilfield No.2 five block is meandering river facies,which has thin sand body,common sand mud interaction,so that conventional seismic data resolution is limited,unable to meet the needs of the structure and reservoir research.Due to the uncertainty of the seismic wavelet,the result of deconvolution is poor in the practical application.High-frequency expanding processing technology using wavelet compression way,improving resolution at the same time,keep the original seismic data when the frequency characteristics and relative amplitude relation,the interlayer reflection details get rich.It got a high degree of agreement between the wells known,which provides reliable basic data for sand body prediction.

关 键 词：港东二区五断块 反褶积处理 高频拓展处理 分辨率 时频特性 

分 类 号：P631[天文地球—地质矿产勘探]