摘要
分析全波形反演应用中面临的问题及测井信息认为,提高初始模型精度是全波形反演应用时避开低频信息的有效途径,在背景速度场中加入测井信息能够提高模型的纵向分辨率。通过插值算法研究,提出了利用测井信息综合建模的方法,不仅提高了初始模型的精度,而且降低了全波形反演对低频数据的依赖性,在有效频率为6 Hz的情况下取得了较好的反演结果。EAGE推覆体模型试算结果也证明了该方法的有效性。
The analyses of the problems faced in the real application of the full waveform inversion and well logging information show that enhancing the precision of the initial model is an effective way of avoiding the low-frequency information for the application of the full waveform inversion and moreover adding the well logging information can increase the vertical resolution of initial model in the background velocity field.By means of the study of interpolation algorithm,the integrated modeling method with the well logging information is presented,thus the precision of the initial model can be not only improved,and also the dependence of the full waveform inversion on the low-frequency data is reduced.In the case of the effective frequency is up to 6 Hz,the much better inverted results are achieved,and furthermore the trail calculation results by EAGE nappe model also demonstrate the validity of the method.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2015年第3期156-160,共5页
Petroleum Geology & Oilfield Development in Daqing
基金
国家自然科学基金青年基金项目(41204086)
国家科技重大专题项目(2011ZX05006-002)
关键词
全波形反演
模型约束
联合插值建模
井信息
Full waveform inversion
model constraint
combination interpolation model
well information
