Rotation release two-way well casing hanger

Details Rotation release two-way well casing hanger Rotation release two-way well casing hanger

E - Fixed Constructions

21

B

166/49

E21B 43/10 (2006.01) E21B 23/02 (2006.01)

Patent

CA 1055842

ROTATION RELEASE TWO-WAY WELL CASING HANGER BY AMARESWAR (NMI) AMANCHARLA, and CARTER R. YOUNG "Abstract of the Disclosure" A well casing hanger for suspending a string of tubing from an outer casing landing nipple, with the hanger structure automatically engaging the nipple structure and latched to a locked state withstanding either suspended weight or upward pull in tension. Hanger structure release is provided by rotation of a member operating a threaded coupling on the upper end of the hanger-operating mandrel through providing a recess to accommodate internal lugs of locking keys so they can be cammed inwardly and unlocked with lifting upward movement of the hanger structure from the land-ing nipple.

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