由等t₀图进行变速空间校正绘制深度构造图的计算机实现方法

The computer realization of depth contour mapping via velocity-variant spatial correction for t₀ contour

胜利石油管理局计算中心,东营257022

Computer Center of Shengli Petroleum Administration, Dongying 257022

等t₀图可以看作是一二维空间曲面,其梯度矢量的大小和方向分别表示地层的倾角和走向。根据每一点的地层平均速度和倾角可以求出每点的空校量,从而实现对等t₀图的二维变速空校。

t₀ contour map can be viewed as a 2 D spatial surface, the magnitudes and directions of its gradient represent the dips and strikes of stratum respectively. The amount of spatial correction at each point can be derived from the average velocity and dip of the stratum at each corresponding point. Thus, We can realize the 2 D spatial correction of the t₀ contour map, and obtain the depth contour map.