Automatic tubing filler

Details Automatic tubing filler Automatic tubing filler

2006-09-19

2006-09-19

Thompson, Kenneth (Department: 3672)

Wells

Processes

Operating valve, closure, or changeable restrictor in a well

C166S323000, C166S324000, C166S334400, C166S383000, C166S386000

Reexamination Certificate

active

07108071

ABSTRACT:
Methods and apparatus for filling a tubing string as it is lowered into a subterranean hydrocarbon well. In one embodiment, an apparatus to fill a tubular with fluid in a wellbore comprises a housing defining a central bore. An aperture formed in the housing provides fluid communication between the central bore and the ambient environment of the tubing string. A piston valve slidingly disposed in the housing is selectively pressure actuatable relative to the housing to control fluid communication between the central bore and the ambient environment.

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