Research Article
A Petrographic Study of the Three Forks Formation (Upper Devonian), Williston Basin, North Dakota: Based on Thin Section Analysis, XRD and SEM
Table 4
Reservoir quality and porosity controlling factors of the Three Forks Formation.
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Pore types: Ix1: intercrystalline; mP: microporosity; mV: microvuggy. Reservoir quality: P: poor; M: moderate; G: good. Main Controls: Dol: dolomitization; Py: pyrite; Cal: calcite; Hem: hematite. Clast: clay or dolomicrites rich clast. Comp: mechanical compaction. |