Patent ID: 11965844
Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method of characterizing a porous rock sample, comprising:
i) subjecting the porous rock sample to an applied experimental pressure where a first fluid that saturates the porous rock sample is displaced by a second fluid; and
ii) subsequent to the operations of i), applying an NMR pulse sequence to the porous rock sample, detecting resulting NMR signals from the porous rock sample, and generating and storing NMR data representative of the detected resulting NMR signals;
iii) repeating the operations of i) and ii) over varying applied experimental pressure to obtain NMR data associated with varying applied experimental pressure values;
iv) processing the NMR data associated with varying applied experimental pressures of iii) to obtain a probability distribution function of capillary pressure values as a function of NMR property values; and
v) processing the probability distribution function of capillary pressure values as a function of NMR properties values of iv) to determine at least one parameter indicative of the porous rock sample.