This paper discusses the wavelet transform by using new technique to calculate the threshold values. This new threshold methods are used to denoised the signal obtained from Petroleum Engineering applications. From numerical results the new threshold values outperform the existing threshold methods such as global threshold, minimax and SURE methods. Some mathematical derivations to give geometrical meaning to the parameters in the description of the new threshold method is discussed in details. All numerical experiments are executed by using Mathematica and Matlab Softwares. © 2016 Author(s).