Regulated Gaseous Emissions from In-use High Horsepower Drilling and Hydraulic Fracturing Engines

Derek R Johnson^*, Heltzel R, Nix AC, Clark N and Darzi M

^*Corresponding Author: Derek R Johnson, Mechanical and Aerospace Engineering Department, Center for Alternative Fuels, Engines, and Emissions, 263 Engineering Sciences Building, West Virginia University, Morgantown, WV 26506, USA, Tel: +3042166592/3042935725 Email: