Evaluation of Eolian Sands in North Dakota for Proppant …
Sand Deposits for Potential Use as Proppant: North Dakota Geological Survey Report of Investigation 110, 67 pp. API, 1995, Recommended Practices for Testing Sand Used in Hydraulic Fracturing Operations: API Recommended Practice 56, 2nd edition, 12 p. Askren, H., 2017, Texas Frac Sand in Demand: Forbes. https://