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 ¹H–¹⁹F 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.

中文翻译：

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使用多核¹⁹ F和¹ H NMR测量的钻头孔隙率

钻屑的岩石物理测量对于确定有机泥岩矿床的储层质量至关重要，因为那里的偏斜（水平/侧向）生产井很少采出。我们展示了一种在中频（12 MHz）下使用多核¹ H– ¹⁹ F NMR测量来测量不规则形状的钻切样品的孔隙率的方法。该方法已在常规和非常规页岩气层的岩心和不规则形状的模拟岩屑中得到了成功证明。