Wells – Above ground apparatus – With assembly or disassembly means
Patent
1991-10-07
1993-04-27
Dang, Hoang C.
Wells
Above ground apparatus
With assembly or disassembly means
166 751, 166 96, 285 23, 285323, 285348, E21B 3303
Patent
active
052053563
ABSTRACT:
A connector for connecting a tubular starter head to a casing of a well allows connection without special tools. The tubular head has an annular recess extending upward from its lower end. The connector includes a seal actuating ring and a slips actuating ring, one of the rings having a recess. A seal ring locates in one of the recesses and slips locate in the other recess. Upward movement of one of the actuating rings sets either the slips or the seal ring first while the other remains unset. Then upward movement of the other actuating ring sets the other.
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Bridges Charles D.
Eckert Lawrence A.
Marietta Dale B.
ABB Vetco Gray Inc.
Bradley James E.
Dang Hoang C.
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