Strokes Per Minute 1 (Beam Lift) : The number of rod strokes per minute of the beam ift unit. Set by depth, viscosity of fluid, gas content, weight of fluid supported, etc
George E. King Engineering, 5000 Oilfield Terms: A Glossary of Petroleum Engineering Terms, Abbreviations and Acronyms, US 2010. http://gekengineering.com/Downloads/Free_Downloads /Glossary_of_Petroleum_Engineering_Terms_25_August _2010.pdf, (Oil - Amer) {593}