The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 11, 1994
Filed:
Jan. 10, 1994
Miroslav M Kolpak, Plano, TX (US);
Atlantic Richfield Company, Los Angeles, CA (US);
Abstract
The liquid and gas volumetric flow rates of a multiphase fluid mixture are measured by pumping the fluid mixture with a positive displacement pump such as a multi-helical lobed rotor type pump, measuring the pressure differential, temperature differential and power input to the pump and calculating the liquid volumetric flow rate and gas volumetric flow rate based on the measured parameters, pump coefficients for friction horse power, fluid leakage and heat transfer, together with predetermined values of liquid and gas specific heat, density and polytropic compression exponent. Approximate flow rates of gas and liquid may be determined by monitoring the pump power input and fluid pressure and temperature changes across the pump with sufficient accuracy for applications such as in pumping crude oil and natural gas mixtures from production wells.