Wellhead expansion assembly

Details Wellhead expansion assembly Wellhead expansion assembly

1983-11-14

1986-04-15

Novosad, Stephen J.

Wells

Above ground apparatus

Well caps or casing heads

166 89, E21B 33047

Patent

active

045821321

ABSTRACT:
A wellhead expansion assembly for wells having a plurality of tubes carrying hot fluids into and out of a well. Thermal expansion of the tubing is a accommodated by provision of an expansion chamber for termination of each separate string of tubing. Expansion chambers are connected in series, female threaded end to male threaded end. A male end of a first expansion chamber is threadedly engaged with a wellhead donut while a terminal end of a last expansion chamber in the series is threadedly engaged with a cap.

REFERENCES:
patent: 1012777 (1911-12-01), Wigle
patent: 2117494 (1938-05-01), Mueller et al.
patent: 2187839 (1940-01-01), Penick et al.
patent: 2673615 (1954-03-01), Hanason
patent: 2889886 (1959-06-01), Gould
patent: 2934148 (1960-04-01), Allaire
patent: 3976130 (1976-08-01), Chambless et al.
patent: 4390063 (1983-06-01), Wells, Jr.
patent: 4401160 (1983-08-01), Anderson et al.

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