System And Methodology For Monitoring In A Borehole
AssigneeSchlumberger Technology Corporation
InventorDinesh Patel
Life of this patent
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Abstract
A technique facilitates monitoring of parameters along the exterior of a tubing/casing deployed in a borehole. An array of sensors is positioned outside of the tubing/casing and within a borehole wall. The array of sensors is coupled to a surface via a communication line routed through an inductive coupler system. The inductive coupler system has a first inductive coupler member located at an outside position and a second inductive coupler member located at an inside position with respect to the tubing/casing. The arrangement enables real-time monitoring of events outside of the tubing/casing.
Claims20
A system for sensing downhole, comprising:
- a casing deployed in a borehole;
- an array of sensors deployed outside of the casing and between the casing and a borehole wall;
- an inductive coupler system having a first inductive coupler member on an outside of the casing and a second inductive coupler member on an inside of the casing;
- and
- a surface control coupled to the second inductive coupler member, the array of sensors being coupled to the first inductive coupler member to provide real-time communication from the array of sensors to the surface control.
A method for sensing in a borehole, comprising:
- deploying a casing in a borehole;
- positioning a plurality of sensors in an annulus along an exterior of the casing;
- routing a communication line from the plurality of sensors to an interior of the casing via an inductive coupler system;
- cementing the annulus such that at least some sensors of the plurality of sensors are cemented in place;
- and
- using the plurality of sensors to monitor parameters in the borehole.
A method, comprising:
- deploying a tubing downhole in a wellbore;
- performing a cementing operation along an annulus surrounding the tubing;
- monitoring parameters of the cementing operation with a plurality of sensors positioned in the annulus;
- and
- outputting data from the plurality of sensors to a surface location in real-time.
Dependencies are inferred from the claim text.