Method and system for formation texture and rock type identification

A system, comprising:

• a downhole tool comprising a plurality of imaging buttons;
• and
• a data processing system comprising a processor configured to:
• receive data from the plurality of imaging buttons;
• generate a high-resolution image of a relationship between resistivity and permittivity of a section of a geological formation measured by the plurality of imaging buttons;
• and
• identify one or more rock types based at least on the high-resolution image of the relationship between resistivity and permittivity,
• wherein the processor is configured to generate at least a rugosity index curve and a high-resolution image of a relationship between resistivity and permittivity and to characterize one or more vugs based at least on the rugosity index curve and the high-resolution image of the relationship between resistivity and permittivity, wherein characterizing one or more vugs includes :
• characterizing whether the one or more vugs are open to a surface of the borehole or are closed to the surface based on the rugosity index curve;
• and
• characterizing a filling material of the one or more vugs based on the rugosity index curve and the high-resolution image of the relationship between resistivity and permittivity.

A tangible, non-transitory computer-readable medium storing instructions that, when executed by a processor, cause the processor to:

• receive data from a plurality of imaging buttons disposed on a downhole tool, wherein the data comprises megahertz range frequency measurements and the imaging buttons are measuring a section of a borehole;
• generate at least a rugosity index curve and a high-resolution image of a relationship between resistivity and permittivity;
• and
• characterize one or more vugs based at least on the rugosity index curve and the high-resolution image of the relationship between resistivity and permittivity, wherein characterizing the one or more vugs comprise :
• characterize whether the one or more vugs are open to a surface of the section or are closed to the surface based on the rugosity index curve;
• and
• characterize a filling material of the one or more vugs based on the rugosity index curve and the high-resolution image of the relationship between resistivity and permittivity.