摘要
冷湖地区地表和地下结构都很复杂,速度变化剧烈,需要用叠前深度偏移处理技术提高成像精度。本次处理采用波动方程基准面校正技术有效地消除了复杂地表的影响,采用逐道逐点多参数速度分析技术较好地解决了速度各向异性问题,采用F-K偏移和几何偏移极大地提高了成像精度,得到的叠前深度偏移剖面能够正确地反映地质情况。
The surface and underground structures of Lenghu area are very complex,and the velocity changes violently.Pre-stack depth migration processing technology must be used to improve imaging precision.In this processing,wave equation datum correction technique eliminated the effects of complex surface effectively,by-channel by-point multi-parameter velocity analysis solved the problem of velocity anisotropy,F-K and geometry migration improved the imaging precision.The processing result can reflect the geological structure correctly.
出处
《内蒙古石油化工》
CAS
2015年第21期101-103,共3页
Inner Mongolia Petrochemical Industry
基金
中国石油青海油田专项资助
关键词
叠前深度偏移
基准面校正
多参数速度分析
高精度成像
Pre-stack depth migration
Datum correction
Multi-parameter velocity analysis
High precision imaging
