石油勘探与开发2017，Vol.44Issue(4)：561-568,8.DOI:10.11698/PED.2017.04.09
准噶尔盆地春风油田浅薄储集层地震逐级精细预测
Stepped and detailed seismic prediction of shallow-thin reservoirs in Chunfeng oilfield of Junggar Basin, NW China
摘要
Abstract
In view of the problems of low signal-to-noise ratio and low resolution of seismic data in shallow-thin reservoir in Chunfeng Oilfield of Junggar Basin,stepped and detailed data processing and interpretation technologies are proposed for shallow-thin reservoir prediction.The overlapping type offset packet processing technology can increase seismic fold from 8 to 16 times and increase signal to noise ratio by 1.4 times at local low noise ratio area by fine processing including frequency upgrade and de-noise imaging techniques.This study established three-level prediction techniques including pre-stack improving resolution target processing,post-stack wavelet reconstruction frequency extension,pre-stack and post-stack joint inversion,which can increase sand resolution from 12 m to 2 m and improve the identification accuracy of reservoir efficiently.The shallow-thin reservoirs after frequency extension have continuous and defined reflections,which are well coincided with actual exploration.The seismic data have well ability of preserving amplitude,and achieve good application effects.关键词
准噶尔盆地/春风油田/中新统沙湾组/储集层预测/子波重构/叠前叠后联合反演Key words
Junggar Basin/Chunfeng oilfield/Miocene Shawan Formation/reservoir prediction/wavelet reconstruction/pre-stack and post-stack joint inversion分类
能源科技引用本文复制引用
束宁凯,汪新文,苏朝光,宋亮,钮学民,李强..准噶尔盆地春风油田浅薄储集层地震逐级精细预测[J].石油勘探与开发,2017,44(4):561-568,8.基金项目
国家科技重大专项(2011ZX05028 （）
2016ZX05011) （）
