Apparatus and method for characterizing stresses of a formation

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United States of America Patent

PATENT NO 8677831
APP PUB NO 20110283807A1
SERIAL NO

13142446

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Abstract

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An apparatus (20) and method for characterizing stresses in a formation (10) based on leakoff pressure measured in the formation (10). The method includes determining a line of shear failure (52) as a function of leakoff pressure (LOP) measured in the formation (10), determining a vertical stress (Sv), and determining each of a lower limit (Sh,limit) and an upper limit (SH,limit) as a function of the vertical stress (Sv) and the leakoff pressure (LOP).

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Patent Owner(s)

  • SHELL OIL COMPANY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chan, Alvin Wing-Ka Houston, US 1 2
Couzens-Schultz, Brent Alan Houston, US 1 2

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