Real-time completion monitoring using distributed acoustic sensing
AssigneeConocoPhillips Company
InventorsChengbo LI, Kyle FRIEHAUF, Baishali ROY
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AssigneeConocoPhillips Company
InventorsChengbo LI, Kyle FRIEHAUF, Baishali ROY
Estimating the term…
Many downhole tools in subsurface wells use pump down darts or balls to activate different equipment. The detection of dart movement and activation of the downhole tool is difficult to confirm and has been documented through subtle changes in pressure, time and rate of flow, or other secondary means. With the incorporation of distributed acoustic fibers in new wells, a signal is available that can be used to visualize activities in the reservoir. By selecting different frequencies in DAS data with improved signal-to-noise ratios, an optimized routine was developed to enable real-time visualization of dart or ball movement and seating as the ball travels to the seat and interacts with the tool. In one example, a sleeve is actuated using a dart and visualized in real-time as the dart travels to the sleeve.
A method for tracking a tool in an instrumented well bore comprising:
A system for actuating a well tool comprising:
A method for monitoring completion in an instrumented well comprising:
Dependencies are inferred from the claim text.