物探化探计算技术2025，Vol.47Issue(2)：222-231,10.DOI:10.12474/wthtjs.20231228-0002
南海浅层气藏储层特征分析及地震识别技术应用
Reservoir characteristics and seismic identification techniques for shallow gas reservoirs in the South China Sea
摘要
Abstract
The thin layer of shallow gas reservoir is widely developed and affected by diagenesis,resulting in the overall low formation velocity.Identifying the gas-bearing sand only based on the strong amplitude phenomenon in the seismic profile is not accurate.The overlapping sand's thickness,lateral change,complex combination form,and amplitude tuning effect will affect the seismic amplitude characteristics.It is difficult to identify shallow or ultra-shallow gas-bearing sand.This paper analyzes and summarizes shallow and ultra-shallow layers'geological,geophysical,and logging characteristics.The seismic response characteristics of the gas-bearing sandstone in the target interval are analyzed based on the actual seismic data and the logging interpretation results.By using the strong amplitude technique to identify gas reservoirs in the normal middle and deep layers,the factors affecting the seismic amplitude of shallow and ultra-shallow layers are analyzed through the forward modeling of superimposed sand bodies.The strong amplitude phenomenon combined with multi-attribute analysis technology is used to identify shallow and ultra-shallow gas reservoirs,which lays a foundation for shallow and ultra-shallow gas exploration in the South China Sea.关键词
浅层\超浅层/叠置砂体/AVO响应/气藏识别/属性分析Key words
shallow or super shallow layer/superimposed sand body/AVO response/gas reservoir identification/attribute analysis分类
天文与地球科学引用本文复制引用
裴健翔,郭璃,刘国昌,刘峰,吴启斌..南海浅层气藏储层特征分析及地震识别技术应用[J].物探化探计算技术,2025,47(2):222-231,10.基金项目
中海油科技项目(KJZH--2021--0002--00) （KJZH--2021--0002--00）
