三阶累积量法在断层检测及落差估算中的应用

FAULT DETECTION AND THROW ESTIMATION BY THIRD-ORDER ACCUMULATION METHOD

阐述了三阶累积量时延估计方法基本原理 ,并将该方法用于断层检测和落差估计。理论模型计算表明该方法断层检测准确 ,落差估计精度高 ,且具有一定的抗噪能力。文中还对基本双相干相关方法进行了改进 ,用改进后的计算公式对实际地震资料进行处理 ,结果表明 ,该方法是一种有效的断层解释方法。

The principle of third-order accumulation method is used to detect fault and estimate the throw of fault. The theory modeling indicates that the method can exactly detect fault and accurately estimate the throw. In addition, it has powerful anti-noise function. The improvement of bi-coherence correlation method is detailed. The practical use shows that the improved method is valid for interpretation of fault.