摘要
利用GeoEast处理系统对大庆探区内的"两宽一高"资料进行了相应的处理,得到以下认识:①利用单只检波器接收"两宽一高"地震数据在拓展地震频带、小断层识别、提高油藏认识精度等方面具有明显的优势;②基于VSP井控的时空变Q补偿技术能够在保幅前提下提高现有资料的分辨率;③在宽方位地震数据处理技术中,OVT处理技术是其中的重要突破,基于现有资料可以获得新的地震、地质认识;④联合叠前、叠后多度分析、多方位分析、方位各向异性分析是进行储层裂缝带分析与流体预测的有效手段,这些分析手段能够提高地质目标识别的准确性。
We have processed a broadband, wide-azimuth,and high-density(BWH) seismic data set in the Daqing Exploration Area with tools provided by GeoEast. The following observations are obtained: ①BWH seismic data with point receiver has much more broadband information, which is very favorable for minor fault recognition and reservoir description;②VSP-controlled time-space variant Q compensation can improve seismic data resolution with amplitude-preserving;③ Offset vector tile(OVT) is an important breakthrough for wide-azimuth data processing, and it can provide new seismic information for geological understandings; ④Multi-scale analysis, multi-azimuth analysis,and azimuthal anisotropy analysis of prestack and poststack are effective for reservoir fracture recognition and fluid prediction, which can enhance the accuracy of geological target identification.
出处
《石油地球物理勘探》
EI
CSCD
北大核心
2017年第A01期10-16,共7页
Oil Geophysical Prospecting
关键词
两宽一高
单点采集
Q补偿
OVT
微幅构造
broadband
wide-azimuth and high-density(BWH)seismic
point receiver
Q compensation
offset vector tile(OVT)
low amplitude structure
