Wells – Processes – With indicating – testing – measuring or locating
Patent
1991-07-16
1993-02-16
Novosad, Stephen J.
Wells
Processes
With indicating, testing, measuring or locating
73155, 166 50, 166 53, 166 66, 166252, E21B 3406, E21B 3416, E21B 4312, E21B 4700
Patent
active
051862557
ABSTRACT:
A system for monitoring and controlling the injection rate of fluid by an injection well of an in-situ remediation system for treating a contaminated groundwater plume. The well is fitted with a gated insert, substantially coaxial with the injection well. A plurality of openings, some or all of which are equipped with fluid flow sensors and gates, are spaced along the insert. The gates and sensors are connected to a surface controller. The insert may extend throughout part of, or substantially the entire length of the injection well. Alternatively, the insert may comprise one or more movable modules which can be positioned wherever desired along the well. The gates are opened part-way at the start of treatment. The sensors monitor and display the flow rate of fluid passing through each opening on a controller. As treatment continues, the gates are opened to increase flow in regions of lesser flow, and closed to decrease flow in regions of greater flow, thereby approximately equalizing the amount of fluid reaching each part of the plume.
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Constant Richard E.
Dixon Harold M.
Moser William R.
Novosad Stephen J.
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