Surface controlled subsurface safety valve
A Standard patent application filed on 21 November 1986 credited to Vinzant, Michael B.
;
Sizer, Phillip S.
;
Smith, Roddie R.
;
Dickson, Rennie L.
;
Churchman, Ronald K.
Details
Application number :
65629
Application type :
Standard
Application status :
CEASED
Under opposition :
No
Proceeding type :
Invention title :
Surface controlled subsurface safety valve
Inventor :
Vinzant, Michael B.
;
Sizer, Phillip S.
;
Smith, Roddie R.
;
Dickson, Rennie L.
;
Churchman, Ronald K.