Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – Fluid spray
Patent
1984-03-22
1986-02-11
Novosad, Stephen J.
Boring or penetrating the earth
With above-ground means for handling drilling fluid or cutting
Fluid spray
175217, 285141, E21B 2303
Patent
active
045694044
ABSTRACT:
A mudline casing hanger assembly in which the support collet 16 has the upper end and support segments biased outwardly, with the lower end (34) push down portion biased inwardly. The lower end can be expanded (58) at the support elevation with load applied on a nonlocking shoulder (36).
REFERENCES:
patent: 3405763 (1968-10-01), Pitos et al.
patent: 3893717 (1975-07-01), Nelson
patent: 4232889 (1980-11-01), Putch
patent: 4373752 (1983-02-01), Nelson
patent: 4468055 (1984-08-01), Reimert
Baron Donald
Berner Paul C.
Milberger Lionel J.
Kochey Jr. Edward L.
Neuder William P.
Novosad Stephen J.
Vetco Offshore Inc.
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