Inventor
MOTT JAMES D
27 patents
Patents
27 patentsUS4310048AJan 12, 1982
Well safety system method and apparatus
HYDRIL CO33 citations96
US3941348AMar 2, 1976
Safety valve
HYDRIL CO91 citations96
US4550780ANov 5, 1985
Pressure operated safety valve with lock means
HYDRIL CO31 citations92
US3993136ANov 23, 1976
Apparatus for operating a closure element of a subsurface safety valve and method of using same
HYDRIL CO34 citations92
US4319639AMar 16, 1982
Well safety system method
HYDRIL CO21 citations82
US4289205ASep 15, 1981
Well safety system method and apparatus
HYDRIL CO14 citations82
US4260021AApr 7, 1981
Plug catcher tool
HYDRIL CO10 citations82
US4074761AFeb 21, 1978
Drilling tool
HYDRIL CO25 citations82
US4044835AAug 30, 1977
Subsurface well apparatus having improved operator means and method for using same
HYDRIL CO20 citations82
US4576358AMar 18, 1986
Remotely operable safety valve
HYDRIL CO24 citations81
US4082147AApr 4, 1978
Method and apparatus for a surface control system for: subsurface safety valves
HYDRIL CO30 citations81
US4310051AJan 12, 1982
Well safety valve apparatus
HYDRIL CO9 citations74
US4295523AOct 20, 1981
Well safety system method and apparatus
HYDRIL CO8 citations74
US4293034AOct 6, 1981
Well safety system method and apparatus
HYDRIL CO8 citations74
US4256180AMar 17, 1981
Method of moving a through-the-flowline installed safety valve through a curved flow line
HYDRIL CO9 citations74
US4071088AJan 31, 1978
Retrievable safety valve
HYDRIL CO10 citations74
US4007905AFeb 15, 1977
Retrievable blow-out preventer ram seals
HYDRIL CO16 citations74
US3939913AFeb 24, 1976
Method of using a subsurface safety valve
HYDRIL CO10 citations74
US4284141AAug 18, 1981
Subsurface well apparatus and method
HYDRIL CO5 citations63
US4067387AJan 10, 1978
Subsurface well apparatus having flexing means and method of using same
HYDRIL CO3 citations63
US4042024AAug 16, 1977
Subsurface well apparatus having flexing means and method of using same
HYDRIL CO5 citations63
US4030550AJun 21, 1977
Method of operating a subsurface safety valve in response to an increase or decrease in ambient well fluid pressure
HYDRIL CO3 citations63
US4026362AMay 31, 1977
Subsurface well apparatus having improved operator means and method of using same
HYDRIL CO5 citations63
US4019574AApr 26, 1977
Subsurface well apparatus having flexing means and method of using same
HYDRIL CO5 citations63
US3987849AOct 26, 1976
Well tool
HYDRIL CO5 citations63
US3938589AFeb 17, 1976
Drilling tool
HYDRIL CO7 citations63
US4036296AJul 19, 1977
Subsurface well apparatus
HYDRIL CO6 citations61