An Object-Oriented System for Full Waveform Data Processing

Abstract

A new approach to the processing of sequences of full waveform acoustic logs is investigated. The rationale for this approach is primarily based on the observation that processing and interpretation tasks strongly depend on each other. Hence, a system that incorporates geologic knowledge in data processing naturally and uses processing results for petrophysical evaluation can improve the overall geological interpretation. The implementation of such ideas requires the use of a versatile computer environment, allowing numeric and symbolic processing. The new generation of Lisp machines satisfies these characteristics. An interactive environment for the processing of sequences of acoustic signals was designed using object-oriented programming. The package includes a novel method for acoustic full waveform signal matching that uses dynamic time warping. The system is tested on synthetic data and field data are processed.