Usable device, in particular for the pumping of an extremely vis

Pumps – Condition responsive control of pump drive motor – Having ambient condition responsive means

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417 18, 417 32, 417 45, 417 53, 417410, 418 48, F04B 4906, F04C 1500

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active

047188243

ABSTRACT:
A control process for a rotary pump which is immersed in a fluid produced by a well involves the use of a rotary pump driven by a variable speed motor and comprises the steps of acting upon the rotational speed of the motor according to a pressure difference which exists between the pressure of the fluid measured in the proximity of the pump and the production pressure of the well. The production pressure P of the well being given by the formula:

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