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1. (WO2017040834) NANO-LEVEL EVALUATION OF KEROGEN-RICH RESERVOIR ROCK

Pub. No.:    WO/2017/040834    International Application No.:    PCT/US2016/049971
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Fri Sep 02 01:59:59 CEST 2016
IPC: E21B 49/00
G01N 33/24
Applicants: SAUDI ARABIAN OIL COMPANY
ARAMCO SERVICES COMPANY
Inventors: HULL, Katherine Leigh
ABOUSLEIMAN, Younane N.
CSUTAK, Sebastian
Title: NANO-LEVEL EVALUATION OF KEROGEN-RICH RESERVOIR ROCK
Abstract:
Examples of nano-level evaluation of kerogen-rich reservoir rock are described. A micro-scale beam is formed from kerogen-rich reservoir rock. The beam has reservoir rock and kerogen, which has polymeric properties. A maximum dimension of the micro-scale beam is at most 1000 micrometers. A mechanical experiment that includes a tension test or a compression test is performed on the micro-scale beam. The mechanical experiment is imaged using a scanning electron microscope (SEM). A material parameter of the kerogen in the micro-scale beam is determined based on results of the mechanical experiment and images obtained responsive to the imaging. The material parameter includes a behavior of the kerogen in response to the mechanical experiment. The behavior of the kerogen can be used to determine, among other things, the energy required to break kerogen in a kerogen-rich shale to improve hydraulic fracturing efficiency.