METHODS AND APPARATUS FOR MEASURING RETURN FLOW IN A WELL
The invention provides apparatus for use in a wellbore made of a casing and an annular with a fluid within, comprising: a reel of wound optic fiber line fixed to an object within the casing, and a light transmitter/receiver device able to generate a signal through the optic fiber line and to measure...
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| Format: | Patent |
| Sprache: | eng |
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