Oriented-radial-cores retrieval for measurements of directional properties
US5482122A · kind A · utility
7Cited by
7References
9Claims
0Family size
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Key dates
| Filing date | Dec 9, 1994 |
| Grant date | Jan 9, 1996 |
| Priority date | — |
| Expiry date | Dec 9, 2014 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for the determination of anisotropic material properties in subterranean rock formations by means of radially oriented and generally equally angularly spaced sidewall cores obtained by use of a rotary sidewall coring tool. The measurement values obtained from testing of the sidewall cores are utilized to obtain an accurate prediction of the shape of the ellipse that describes the variation in the material property under consideration as a function of direction in the bedding plane of the subterranean rock formation.
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