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US 8,783,369 B2Granted
Downhole pressure barrier and method for communication lines
AssigneeSchlumberger Technology Corporation
InventorEmmanuel Rioufol
Life of this patent
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AssigneeSchlumberger Technology Corporation
InventorEmmanuel Rioufol
Estimating the term…
A technique enables sealing of downhole components by providing a downhole pressure barrier for communication lines. The system comprises a communication line cementing sub that may be coupled into a tubing string. The cementing sub comprises a flow passage, a radially protruding region, a first connector, and a second connector. The first connector is generally disposed on a first longitudinal end of the radially protruding region, and the second connector is disposed on a second longitudinal end of the radially protruding region. Additionally, a passageway extends through the radially protruding region from the first connector to the second connector. The first and second connectors enable routing of a communication line through the radially protruding region.
A system for use in a well, comprising a tubing string having a communication line cementing sub to prevent fluid migration along a communication line after a cementing operation, the communication line cementing sub comprising:
A well system, comprising a cable cementing sub comprising a protruding outer diameter portion along at least a portion of a length of the cable cementing sub, wherein the cable cementing sub further comprises:
A method for sealing an abandoned well, comprising:
Dependencies are inferred from the claim text.