CAJ | 학술논문

当地下地质构造复杂、地层存在各向异性现象及地震采集偏移距大时，地震波传播的时距关系不再遵循双曲线时距方程，常规速度分析方法难以满足工作要求。通过对现有各种速度分析手段的原理、适用条件及应用方法进行研究，提出了“各向异性速度分析、沿层速度分析和空间连续速度分析”的联合应用方法，指出其适用范围并建立了处理流程。实际应用表明该方法能够提高复杂地区地震速度分析精度。
당지하지질구조복잡、지층존재각향이성현상급지진채집편이거대시，지진파전파적시거관계불재준순쌍곡선시거방정，상규속도분석방법난이만족공작요구。통과대현유각충속도분석수단적원리、괄용조건급응용방법진행연구，제출료“각향이성속도분석、연층속도분석화공간련속속도분석”적연합응용방법，지출기괄용범위병건립료처리류정。실제응용표명해방법능구제고복잡지구지진속도분석정도。
Due to the complex geological structure ,stratum anisotropy ,large offset distance of seismic acquisition ,the seismic wave can not be propagating according to the hyperbolic time -distance equation .Thus conventional velocity analy-sis methods are difficult to meet the exploration requirements .By studying principles ,application conditions and methods for different existing velocity analysis methods , a combination application of different velocity analysis methods was pro-posed ,which includes the anisotropic velocity analysis ,the velocity analysis along the layer and the spatial continuous ve-locity analysis .And the application scope was pointed out ,and the process flow was established .The practical application showed that the method can improve the accuracy of seismic velocity analysis for complex area .