Sentences with phrase «injection volume over»
Advocating reducing injection volume over time, this study offers new insights into the rationale for a continuing call for reducing injection rate in order to reduce seismicity.»
https://www.sciencedaily.com/ Not exact matches
An aluminum / magnesium engine block (again, exclusive to BMW), hollow camshafts, plastic camshaft cover, improved combustion chambers, a further evolved Double VANOS, higher fuel injection pressure, sophisticated engine electronics, an electric coolant pump, a variable - volume oil pump and an oil / coolant heat exchanger are the other weight - saving features and improvements of this engine over previous generations.
High - volume hydraulic fracturing has been combined with horizontal drilling over the past decade to force oil and natural gas out of shale and other tight geological formations by fracturing the rock with high - pressure injection of water, sand, and chemicals.