Well monitoring
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United States of America Patent
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Jun 21, 2016
Grant Date -
Jan 2, 2014
app pub date -
Dec 8, 2011
filing date -
Dec 14, 2010
priority date (Note) -
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Abstract
Downhole water level detecting apparatus for detecting the level of water in a formation in the region of a well installation. The detecting apparatus includes a transmitter for applying electrical signals to a signaling loop at a first location. The signaling loop includes a downhole metallic structure of the well installation and an earth return. The detecting apparatus also includes a detector for monitoring electrical signals in the signaling loop, and an evaluation unit arranged for determining a level of water in the formation relative to the downhole metallic structure in dependence on the monitored signals.
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