Multi-phase compensated spinner flow meter
AssigneeBaker Hughes Incorporated
InventorsJorge O. Maxit, David Chace, Jianrong Wang, Daniel Georgi
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Abstract
A compensated flow measuring system for measuring a multi-phase fluid flow in a well. An impeller intercepts a downhole multi-phase flow. Capacitance and conductivity sensors are mounted in close proximity to the impeller and provide a measure of electrical admittance of the fluid. In one embodiment, the capacitance and conductivity sensors are mounted in at least one single probe mounted near the impeller. An electronics system contains a phase detector for separating the capacitive and conductive signals and providing a signal related to a compensated multiphase flow rate.
Claims15
A compensated flow measuring system for measuring a multi-phase fluid flow in a well, comprising:
- an impeller assembly adapted for intercepting a downhole multi-phase flow, said impeller assembly generating a first signal related to a flow rate of said multi-phase flow, and a second signal related to a flow direction of said multi-phase fluid flow;
- a fluid typing system proximate said impeller assembly for determining an electrical admittance of said flow proximate said impeller assembly and generating a third signal in response thereto;
- and,
- an electronics system for receiving said first signal and said second signal from said impeller assembly and said third signal from said fluid typing system, said electronics system adapted to analyze said received signals and provide a fourth signal related to a compensated multi-phase flow.
A method for measuring a compensated fluid flow rate of a multi-phase flow in a well, comprising;
- intercepting the multi-phase flow in a well with an impeller assembly, said impeller assembly generating a first signal related to said fluid flow rate and a second signal related to said fluid flow direction;
- measuring an electrical admittance of said fluid flow using a fluid typing sensor system located proximate said impeller assembly, said fluid typing system generating a third signal related to said electrical admittance of said fluid;
- and,
- analyzing said impeller assembly first signal and said second signal and said fluid typing system third signal and generating an output signal related to a compensated multi-phase fluid flow rate.
Dependencies are inferred from the claim text.