Well Monitoring by Means of Distributed Sensing Means
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United States of America Patent
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Issued Date -
Mar 15, 2012
app pub date -
May 27, 2010
filing date -
May 27, 2009
priority date (Note) -
Abandoned
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Abstract
Methods and apparatus for downhole monitoring are provided by interrogating an unmodified optic fibre (102) arranged along the path of a well bore (106) to provide a distributed acoustic sensor and sampling data gathered from a plurality of contiguous sensing portions of the fibre. The sampled data is processed to determine one or more well bore parameters. The well bore parameters may comprise a well condition profile, and may be obtained in response to an acoustic stimulus.
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