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US 2009/0151939 A1Published application
Surface tagging system with wired tubulars
AssigneeSchlumberger Technology Corporation
InventorsLouise Bailey, Ashley Bernard Johnson, Alistair William Oag, Lee Dolman
Life of this patent
Estimating the term…
Abstract
Downhole systems and methods including tags configured to provide distinguishable identifiers are set for selective release to a subsurface location. Sources/sensors in the wellbore are activated to detect the tags at a subsurface location, and signal data associated with the detected tags is conveyed to the surface.
Claims25
A downhole system, comprising:
- at least one tag configured to provide a distinguishable identifier and set for selective release to a subsurface location;
- and
- at least one sensor disposed on a drill string comprising a plurality of interconnected drill pipes, wherein the at least one sensor detects the at least one tag at a subsurface location,
- and further wherein the at least one sensor is configured to transmit a signal associated with the at least one tag to a surface location.
1 more element
A method, comprising:
- detecting the at least one tag at a subsurface location with a sensor disposed on a drill string, the tag configured to provide a distinguishable identifier;
- and
- conveying a signal associated with the at least one tag from the sensor to a surface location.
A method, comprising:
- positioning a plurality of sensors on an interconnected wired tubular to detect a location of a tag, wherein the tag has a distinguishable identifier;
- and
- conveying a signal associated with the tag from the plurality of sensors along interconnected wired tubular.
Dependencies are inferred from the claim text.