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

1975-05-23

1977-04-26

Leppink, James A.

Wells

With below and above ground modification

Eduction pump or plunger in well

166156, 166322, E21B 33035, E21B 4312

Patent

active

040195740

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: 3732928 (1973-05-01), Sizer
patent: 3764176 (1973-10-01), Soulie et al.
patent: 3771597 (1973-11-01), McGowen
patent: 3891032 (1975-06-01), Tausch et al.

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