Subsurface well apparatus having flexing means and method of usi

Details Subsurface well apparatus having flexing means and method of usi Subsurface well apparatus having flexing means and method of usi

1976-06-07

1977-08-16

Leppink, James A.

Wells

Miscellaneous

166 98, 166153, E21B 2300

Patent

active

040420248

ABSTRACT:
A surface-controlled subsurface safety valve apparatus and method of utilizing the safety valve in through-the-flowline serviced wells. Both the valve frame and valve operator are provided with ball and socket universal joints to enable passage of the safety valve past restrictions in the flowline resulting from bends and curves in the flowline by flexing the safety valve in moving to and from the subsurface operating location.

REFERENCES:
patent: 3052302 (1962-09-01), Lagucki
patent: 3727693 (1973-04-01), Tausch et al.
patent: 3764176 (1973-10-01), Soulie et al.

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