Porosity of Drill-Cuttings Using Multinuclear ~(19)F and ~1H NMR Measurements

摘要

Petrophysical measurements of drill cuttings are vital for determining reservoir quality in organic mudstone plays, where the highly deviated (horizontal/lateral) production wells are rarely logged. We demonstrate a methodology to measure the porosity of irregularly shaped drill-cutting samples using multinuclear H-1-F-19 NMR measurements at medium frequencies (12 MHz). The methodology is successfully demonstrated on both core and irregularly shaped simulated cuttings from conventional and unconventional shale plays.