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公开(公告)号:US20210318259A1
公开(公告)日:2021-10-14
申请号:US16999242
申请日:2020-08-21
Applicant: CHEVRON U.S.A. INC.
Inventor: Martha Rebecca STOKES , Zheng YANG , Prince E. EZEBUIRO , Timothy B. FISCHER
Abstract: Provided herein are various embodiments of determining a cation exchange capacity of a rock sample. One embodiment of a method of determining a cation exchange capacity of a rock sample comprises equilibrating the rock sample to a relative humidity, performing a dielectric permittivity measurement on the rock sample at the relative humidity, and determining a cation exchange capacity of the rock sample based on the dielectric permittivity measurement. One embodiment of a method of determining a cation exchange capacity of a rock sample comprises receiving a dielectric permittivity measurement on the rock sample, and determining a cation exchange capacity for the rock sample based on the dielectric permittivity measurement of the rock sample and a relationship between cation exchange capacity and dielectric permittivity measurements for mineral mixtures corresponding to a range of cation exchange capacity values.