Lift fluid driven downhole electrical generator and method for use of the same

A method for generating electricity downhole with a lift fluid driven downhole electrical generator comprising the steps of:

• positioning the downhole electrical generator within a tubing string;
• providing fluid pressure by injecting a lift fluid down an annulus surrounding the tubing string;
• converting the fluid pressure to rotary motion by impinging the lift fluid against a rotor;
• and
• converting the rotary motion to electricity by rotating a first portion of an electromagnetic assembly relative to a second portion of the electromagnetic assembly.

A lift fluid driven downhole electrical generator comprising:

• a housing having a lift fluid port in a sidewall portion thereof for allowing the flow of lift fluid therethrough;
• a rotor rotatably disposed within the housing for converting lift fluid pressure to rotary motion when the lift fluid passes through the lift fluid port and impinges the rotor;
• and
• an electromagnetic assembly having a first portion that is rotatable with the rotor and a second portion that is stationary with the housing, the electromagnetic assembly converting the rotary motion to electricity as the first portion of the electromagnetic assembly rotates relative to the second portion of the electromagnetic assembly.

A method for generating electricity downhole with a lift fluid driven downhole electrical generator comprising the steps of:

• positioning the downhole electrical generator within a tubing string;
• providing fluid pressure by injecting a lift fluid down an annulus surrounding the tubing string;
• and
• converting the fluid pressure to electricity.