Massive frac-pumping equipment in a modern Marcellus gas shale well. Universal Pumping Services. Perforations are the tiny holes in the casing of a well that produces oil or gas. The perforations allo...
Massive frac-pumping equipment in a modern Marcellus gas shale well. Universal Pumping Services. Perforations are the tiny holes in the casing of a well that produces oil or gas. The perforations allo...