System and method for sensing a liquid level

摘要

A system, method and device may be used to monitor fluid levels in a borehole. The system includes a pulse generator to generate a pulse of electromagnetic energy to propagate along the wellbore towards a surface of the fluid, a detector to detect a portion of the electromagnetic pulse reflected from the surface of the fluid and propagated along the wellbore towards the detector, a processor to analyze detected signals to determine a level of the surface of the fluid, and a pump controller to control the operation of a pump located in the wellbore based on the fluid surface level.

主权项

1. A system for measuring a fluid level in a casing-lined wellbore, comprising:
a pulse generator, positionable and operable to generate a pulse of electromagnetic energy to propagate along the wellbore towards a surface of the fluid; a detector, positionable and operable to detect a portion of the electromagnetic pulse reflected from the surface of the fluid and propagated along the wellbore towards the detector; a processor, configured and arranged to receive a signal from the detector representative of the detected portion of the electromagnetic pulse and to analyze it to determine a level of the surface of the fluid; and a pump controller, configured and arranged to receive distance information from the processor and to use the distance information to control the operation of a pump located in the wellbore and wherein once the detector detects the portion of electromagnetic pulse reflected from the surface, reception of the signal is inhibited.