Fast and adaptive method for downhole compression of sonic waveforms
Saad Kisra · 2004
This paper presents a fast and generic algorithm for compression of waveforms acquired with a well-logging sonic tool. The algorithm has low complexity and minimal memory usage, which makes it suitable for implementation in downhole hardware. Its core process is completely reversible and the compression is lossless. Furthermore, when a higher logging speed is required, the algorithm provides a lossy mode that can achieve higher compression rates with minimal effects on the data. The performance of the algorithm, in terms of compression rate and effects on data, is illustrated on field data.