Delta encoding of downhole images of petrophysical rock properties
US11016219B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2017 |
| Grant date | May 25, 2021 |
| Priority date | — |
| Expiry date | Mar 1, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/593
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
System and methods for encoding downhole image data are provided. Measurements collected by a downhole tool around a circumference of a borehole drilled within a formation are obtained. The acquired measurements are assigned to a plurality of azimuthal bins. Each azimuthal bin corresponds to an angular sector around the circumference of the borehole in which at least one of the measurements was collected by the downhole tool at a predetermined depth within the formation. At least one of a plurality of delta encoding schemes is selected for encoding the measurements assigned to the plurality of azimuthal bins. A delta-encoded binary representation of the measurements assigned to the plurality of bins is generated, based on the selected delta encoding scheme. The generated delta-encoded binary representation is transmitted from the downhole computing device to a surface computing device located at the surface of the borehole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.