Wells – Processes – Assembling well part
Reexamination Certificate
2006-05-09
2006-05-09
Thompson, Kenneth (Department: 3672)
Wells
Processes
Assembling well part
C166S085400, C166S075140
Reexamination Certificate
active
07040410
ABSTRACT:
Adapters for connecting to a double-locking casing mandrel of an independent screwed wellhead include a lockdown flange with an adapter pin, and a retainer flange that may be used with or without the adapter pin. The retainer flange has a top surface with circumferentially-spaced threaded bores that permit well stimulation equipment to be mounted thereto. The retainer flange threadedly connects to a pin thread at a top of the casing mandrel, and therefore provides a low profile mounting flange for well stimulation equipment.
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Dallas L. Murray
McGuire Bob
LandOfFree
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