Method of determining planar events from borehole or core images
US7236887B2 · kind B2 · utility
7Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2005 |
| Grant date | Jun 26, 2007 |
| Priority date | — |
| Expiry date | Mar 4, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V9/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a user-guided dip picking method from electrical borehole images using Hough Transform. It includes defining a top and bottom reference curve, applying the Hough Transform to the borehole image limited by the top and bottom reference dips so that the Hough Transform space is restrained in the neighborhood of the reference dips. A 1D average trace representing the extrema of the 3D Hough parameter space for each depth is then computed and the extrema exceeding a given threshold are search in this 1D trace. The position in the 3D Hough space of an extremum represents a dip event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.