Patent · US Active

Strength (UCS) of carbonates using compressional and shear acoustic velocities

US8387722B2 · kind B2 · utility

0Cited by

7References

14Claims

0Family size

Assignee

Baker Hughes Holdings LLC · US

Inventors

Umesh Prasad · Spring, US
David A. Curry · Princes Risborough, GB

Key dates

Filing date	Apr 5, 2010
Grant date	Mar 5, 2013
Priority date	—
Expiry date	Jan 6, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG01V3/32
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Acoustic velocities measured downhole are used to predict a rock strength using results of a regression analysis that include grain size. The grain size can be obtained from drill cuttings or from NMR measurements. The determined rock strength is used in drilling operations.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.