Characterizing pore size distribution by integrating nmr and acoustic measurements

A system, comprising:

• a computing system configured to perform operations comprising:
• receiving transverse relaxation time (T2) distribution data associated with a geological formation, wherein the T2 distribution data is acquired by a nuclear magnetic resonance (NMR) tool;
• decomposing the T2 distribution data into one or more Gaussian distributions using one or more inversion techniques;
• computing one or more reconstructed acoustic values associated with the geological formation based on a first Gaussian distribution of the one or more Gaussian distributions and a first pore type;
• receiving one or more measured acoustic values associated with the geological formation, wherein the one or more measured acoustic values are acquired by one or more acoustic tools;
• determining that the first pore type corresponds to the first Gaussian distribution based on the one or more reconstructed acoustic values and the one or more measured acoustic values;
• and
• in response to determining that the first pore type corresponds to the first Gaussian distribution, determining a pore size distribution (PSD) for the first Gaussian distribution based on an aspect ratio associated with the first pore type.

A non-transitory computer-readable medium comprising computer-executable instructions that, when executed, are configured to cause a processing system to perform operations comprising:

• receiving transverse relaxation time (T2) distribution data associated with a geological formation, wherein the T2 distribution data is acquired by a nuclear magnetic resonance (NMR) tool disposed;
• decomposing the T2 distribution data into one or more Gaussian distributions using one or more inversion techniques;
• computing one or more reconstructed acoustic values associated with the geological formation based on a first Gaussian distribution of the one or more Gaussian distributions and a first pore type;
• receiving one or more measured acoustic values associated with the geological formation, wherein the one or more measured acoustic values are acquired by one or more acoustic tools;
• determining that the first pore type corresponds to the first Gaussian distribution based on the one or more reconstructed acoustic values and the one or more measured acoustic values;
• and
• in response to determining that the first pore type corresponds to the first Gaussian distribution, determining a pore size distribution (PSD) for the first Gaussian distribution based on an aspect ratio associated with the first pore type.