摘要
常规的地震勘探是建立在各向同性的理论基础上的 ,各向异性的存在导致非双曲时差。许多研究发现 ,各向异性的存在可能严重地影响了许多基本的处理流程和解释成果的精确性。作者在均匀 VTI单层介质中以 P波为例 ,用最小平方法的曲线拟合和相似系数搜根法进行旅行时反演。理论模型试验表明了该方法的可行性和有效性。
Conventional seismic exploration is based on the assumption of isotropy. Anisotropy can lead to nonhyperbolic moveout. Numerous investigations during the past decade have proven that the presence of anisotropy may seriously affect the most basic processing and interpretation steps. we studied the inversion of P wave traveltimes by the least squares method or by semblance search in a single layer media with vertical transverse isotropy in this paper. The theory model test showed that the inversion is practicable and effective.
出处
《物探化探计算技术》
CAS
CSCD
2000年第4期312-321,共10页
Computing Techniques For Geophysical and Geochemical Exploration
关键词
各向异性介质
旅行时反演
非双曲时差
地震勘探
anisotropy media
traveltime inversion
nonhyperbolic moveout
least squares method
semblance searcht
