Borehole image compression
US9866835B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2014 |
| Grant date | Jan 9, 2018 |
| Priority date | — |
| Expiry date | Aug 25, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/88
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Devices and methods for obtaining borehole images at a surface installation while a borehole-imaging downhole tool is logging a borehole are provided. One such method may involve, while the downhole tool is disposed in the borehole, obtaining a first borehole image at a first depth of investigation using the borehole-imaging downhole tool. Compression electronics may compress the first borehole image to obtain a first compressed borehole image. Compressing the first borehole image may involve exploiting a symmetry characteristic of the first borehole image to increase compression efficiency or exploiting a similarity of the first borehole image with a second borehole image to increase compression efficiency, or both. The compressed borehole image then may be efficiently transmitted to the surface installation via a telemetry system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.