摘要
进行弹性阻抗反演,寻找反映岩性和物性的最佳弹性阻抗角度十分重要,首先应通过对能够反映岩性和弹性阻抗的井资料进行相关性分析,求取弹性阻抗与岩性曲线相关性最好的弹性阻抗角度;其次通过扫描弹性阻抗角度,求得与岩性相关性最好的角度来反演弹性阻抗。应用结果表明,通过弹性阻抗反演能够提高储层识别能力。认为在火山岩发育区弹性阻抗反演应用效果好于常规波阻抗反演。
Finding the best angle to reflect lithology and physical properties is a very important step in carrying on elastic impedance seismic trace inversion. Based on the correlation analysis of well data that reflect lithology and elastic impedance, the paper resolves the optimum angle of elastic impedance. Then, by scanning the elastic impedance angle, the relatively best angle in rock （curve of GR） for the elastic impedance Seismic trace inversion is come up with. The application results show that the elastic impedance seismic trace inversion can raise the ability of identifying reservoirs, especially in volcanics.
出处
《天然气地球科学》
EI
CAS
CSCD
2007年第3期422-425,共4页
Natural Gas Geoscience
关键词
弹性波阻抗
地震道反演
火山岩
Elastic impedance
Seismic trace inversion
volcanics.
