Methods and apparatus for long term monitoring of reservoirs
AssigneeSchlumberger Technology Corporation
InventorsKamal Babour, Ashok K. Belani, Jacques Pilla
Life of this patent
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Abstract
A method and apparatus of monitoring subsurface formations containing at least one fluid reservoir and traversed by at least one well, by means of at least one sensor responsive to a parameter related to fluids, comprising the steps of: lowering the sensor into the well to a depth level corresponding to the reservoir; fixedly positioning said sensor at said depth while isolating the section of the well where the sensor is located from the rest of the well and providing fluid communication between the sensor and the reservoir.
Claims28
A method of monitoring subsurface formations containing at least one fluid reservoir and traversed by at least one well, comprising the steps of:
- providing one sensor responsive to a parameter related to fluids;
- lowering the sensor into the well to a depth level corresponding to the reservoir;
- fixedly positioning said sensor at said depth while isolating the section of the well where the sensor is located from the rest of the well;
- providing fluid communication between the sensor and the reservoir;
- and
- establishing communication between the sensor and the surface.
Apparatus for monitoring subsurface formations containing at least one fluid reservoir and traversed by at least one well, comprising:
- a sensor responsive to a parameter related to fluids;
- said sensor being positioned in the well to a depth level corresponding to the reservoir;
- means for fixedly positioning said sensor at said depth while isolating the section of the well where the sensor is located from the rest of the well;
- means for providing fluid communication between the sensor and the reservoir;
- and
- means for establishing communication between the sensor and the surface.
Dependencies are inferred from the claim text.