Workstation for full wave form acoustic logging

Abstract

This a nal year dissertation in Computer Science at the University of Akureyri. Itis a part of a larger project that aims to build a "Workstation for Full Wave FormAcoustic Logging", collaborative work between ÍSOR and the University of Akureyri.This project looks at the problems solved by using a sonic probe to investigateboreholes, such as cement bond logging to detect aws in borehole casing. It furtherprovides detailed analysis of problems related with data gathering, informationstorage and performance.A prototype and two test programs where created to evaluate design decisionsand runtime of the workstation. The result of this evaluation is that Java is almostas fast as C++ in running the semblance function and that the data processingtechnique must manage intermediate results carefully, since they can become verylarge.