Sub-mudling casing hanger/packoff

Details Sub-mudling casing hanger/packoff Sub-mudling casing hanger/packoff

1989-08-25

1990-11-13

Neuder, William P.

Wells

Expansible anchor or casing

Liner hanger

166142, E21B 3304

Patent

active

049695177

ABSTRACT:
A well casing hanger/packoff apparatus with ports through which fluids can be circulated during installation and cementing operations, and a sleeve-type valve that can be moved axially to open or close the ports as desired.

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