Inventor
HILL WILLIAM M
US4 patents
Patents
4 patentsUS5050672ASep 24, 1991
Pump apparatus including a firing head for use with a perforating gun on a tubing string
SCHLUMBERGER TECHNOLOGY CORP25 citations91
US5191933AMar 9, 1993
Wellbore apparatus including a rathole pressure balanced-differential pressure firing system
SCHLUMBERGER TECHNOLOGY CORP7 citations72
US5058680AOct 22, 1991
Method of detonating a perforating apparatus on a tubing including lowering one end of a pump and a firing head into said tubing
SCHLUMBERGER TECHNOLOGY CORP7 citations72
US5040597AAug 20, 1991
Well apparatus including a pump and a firing head adapted to be inserted into a tubing which includes a perforating gun
SCHLUMBERGER TECHNOLOGY CORP1 citations51