利用MATLAB工具箱，三测向测井方式下测得到的各种视电阻率数据文件，利用这些数据与泥浆侵入地层的半径的算法关系，编程计算的到对应深度下侵入半径大小的数据文件。-The use of MATLAB toolbox, the three measurement methods to the logging has been measured under a variety of apparent resistivity data files, use of these data and mud invasion stratigraphic relationship between the radius of the algorithm, programming calculated to correspond to the depth of invasion radius of the size of the next data file .