首页>
外国专利>
Seismic surveying technique for the detection of azimuthal variations in the earth's subsurface
Seismic surveying technique for the detection of azimuthal variations in the earth's subsurface
展开▼
机译:地震勘探技术,用于探测地球地下的方位角变化
展开▼
页面导航
摘要
著录项
相似文献
摘要
Polarized shear wave surveys are performed to determine azimuthal variations in the earth's subsurface caused by fracture orientation and density. The surveys may be done by using the same polarization (either horizontal or vertical) shear waves along two different seismic lines of profile, or by using different polarization shear waves along one common line of profile. The survey data are then processed and compared; any differences constitute a measure of fracture orientation and density. Subsurface zones of high fracture density, once identified, have been found to afford a higher likelihood of successful well completion.
展开▼