Cyclic noise removal in borehole imaging
US8682102B2 · kind B2 · utility
2Cited by
14References
8Claims
0Family size
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Key dates
| Filing date | Oct 26, 2010 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Jul 26, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T5/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for removing cyclic noise from a borehole image includes transforming the image into the frequency domain using a two-dimensional (2-D) transform (e.g., using a discrete cosine transform). The cyclic noise components (peaks) are removed from the transformed image which is then inverse transformed back into the spatial domain using an inverse 2-D transform to obtain a corrected image. An automated method enables the cyclic peaks to be identified and removed from the borehole image via downhole processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.