Impulse energy tubing and casing make-up method and apparatus

Details Impulse energy tubing and casing make-up method and apparatus Impulse energy tubing and casing make-up method and apparatus

2006-06-06

2008-12-16

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Dynamometers

Responsive to torque

C073S862210, C073S862250, C173S180000, C173S181000

Reexamination Certificate

active

07464612

ABSTRACT:
A make-up assembly and process provides a true power-tight connection between a first and second tubular segment. Each of the segments has an externally threaded male member at one end and an internally threaded female member at the other end. The male member of the first segment is inserted into the female member of the second segment. A primary torque component is applied to the first segment to engage the external threads of the first segment with the internal threads of the second segment and to advance the male member of the first segment into the female member of the second segment. The value of the primary torque component is monitored. An impulse energy component is then superimposed on the primary torque component when a predetermined onset threshold has been reached. Application of one or both of the primary and impulse energy components is discontinued when a predetermined maximum threshold has been reached.

REFERENCES:
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patent: 4592125 (1986-06-01), Skene
patent: 5361852 (1994-11-01), Inoue et al.
patent: 6212763 (2001-04-01), Newman
patent: 6385837 (2002-05-01), Murakami et al.
patent: 6532648 (2003-03-01), Murakami et al.
patent: 6758095 (2004-07-01), Newman
patent: 7100698 (2006-09-01), Kracik et al.

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