Oil field operators can use several practical equations for calculating flow rates of natural gas through venturi gas-lift valves. For critical flow, this analysis derived such equations from a ...

Michael Boyle is an experienced financial professional with more than 10 years working with financial planning, derivatives, equities, fixed income, project management, and analytics. Pete Rathburn is ...

Investors use free cash flow to help assess a company's performance and what lies ahead. Issues in free cash flow often ...