proppant - Wiktionary
https://en.wiktionary.org/wiki/proppant
Sand or similar particulate material suspended in water or other fluid and used in hydraulic fracturing (fracking) to keep fissures open. 1995, P. A. Fletcher, C. T. Montgomery, G. G. Ramos, R. J. Guillory, M. J. Francis, Optimizing hydraulic fracture length to prevent formation failure in oil and gas reservoirs, Jaak J. K. Daemen, Richard A. Schultz ...
DA: 37 PA: 8 MOZ Rank: 27