Petrophysical interpretation model creation for heterogenous complex reservoirs

A system comprising:

• at least one processor;
• and
• a memory coupled to the at least one processor having instructions stored therein, which when executed by the processor, cause the at least one processor to perform a plurality of operations, including operations to:
• receive measurements of a plurality of formation parameters along a wellbore drilled within a reservoir formation;
• calculate, for every formation parameter of the plurality of formation parameters, a correlation coefficient between at least one target parameter and a respective formation parameter of the plurality of formation parameters based at least in part on the measurements;
• select one or more formation parameters of the plurality of formation parameters to use as input into a model based at least on one or more respective correlation coefficients of the correlation coefficients calculated for every formation parameter;
• based on the selected one or more formation parameters, train the model to determine a target petrophysical model of the reservoir formation, wherein the target petrophysical model is representative of a predictive relationship between the selected one or more formation parameters and the at least one target parameter;
• estimate one or more properties of the reservoir formation based at least on the target petrophysical model;
• and
• perform a downhole operation along the wellbore based on the one or more estimated properties of the reservoir formation.

A non-transitory computer-readable medium having instructions stored thereon, which, when executed by a computer, cause the computer to perform a plurality of operations, including operations to:

• receive measurements of a formation parameter along a wellbore drilled within a reservoir formation;
• calculate, based on the measurements, a correlation coefficient between the formation parameter and at least one target parameter for the reservoir formation;
• input the formation parameter into a model, based at least in part on the correlation coefficient calculated for the formation parameter;
• based on the formation parameter, train the model to determine a target petrophysical model of the reservoir formation, wherein the target petrophysical model comprises a plurality of expressions representative of a predictive relationship between the formation parameter and the at least one target parameter;
• estimate one or more properties of the reservoir formation based at least on the target petrophysical model;
• and
• perform a downhole operation along the wellbore based on the one or more estimated properties of the reservoir formation.