Adapters for double-locking casing mandrel and method of...

Details Adapters for double-locking casing mandrel and method of... Adapters for double-locking casing mandrel and method of...

E - Fixed Constructions

21

B

E21B 33/04 (2006.01) E21B 33/047 (2006.01) E21B 33/068 (2006.01)

Patent

CA 2434801

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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