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1. (WO2018129002) METHOD FOR ESTIMATING A VALUE OF A KEROGEN PROPERTY IN SUBSURFACE FORMATIONS

Pub. No.:    WO/2018/129002    International Application No.:    PCT/US2018/012125
Publication Date: Fri Jul 13 01:59:59 CEST 2018 International Filing Date: Thu Jan 04 00:59:59 CET 2018
IPC: G01N 21/3563
G01N 33/24
Applicants: SCHLUMBERGER TECHNOLOGY CORPORATION
SCHLUMBERGER CANADA LIMITED
SERVICES PETROLIERS SCHLUMBERGER
SCHLUMBERGER TECHNOLOGY B.V.
Inventors: CRADDOCK, Paul, Ryan
PRANGE, Michael, David
POMERANTZ, Andrew, Emil
Title: METHOD FOR ESTIMATING A VALUE OF A KEROGEN PROPERTY IN SUBSURFACE FORMATIONS
Abstract:
A method for estimating a value of a kerogen property in a subsurface formation where the value of the kerogen property is unknown. The method includes: measuring spectral intensity values over an infrared (IR) spectral range for a selected sample from the subsurface formation; determining a range of values representing the measured spectral intensity values corresponding to a vibrational mode attributable to kerogen in the selected sample, the range of values including values representing uncertainty in the measured spectral intensity over the portion of the spectral range; and inputting values from the range of values into a stochastic or simple regression model to determine an estimated value of the kerogen property in the selected sample.