在测井资料处理解释过程中 ,需要对井筒数据进行重采样。全局多项式和三次样条插值是目前常用的数值插值重采样方法 ,但存在计算量大、局部形变大等缺点。介绍了Akima分段三次多项式插值方法 ,通过数值实验并与三次样条插值效果进行比较分析 ,表明Akima分段三次多项式插值是简便、快速、保形性好、便于实现的井筒数据重采样方法 Well log data interpretation needs to be resampled during logging data interpretation. Global Polynomials and Cubic Spline Interpolation are the commonly used methods of numerical interpolation resampling, but they have some shortcomings such as large amount of calculation and large local deformation. The Akima piecewise cubic polynomial interpolation method is introduced. By numerical experiments and comparison with cubic spline interpolation, it is shown that the Akima piecewise cubic polynomial interpolation is a simple, fast, good shape retention and easy to implement wellbore data resampling method