Inventor
NAHM JAMES J W
US22 patents
Patents
22 patentsUS5464060ANov 7, 1995
Universal fluids for drilling and cementing wells
SHELL OIL CO235 citations99
US5314022AMay 24, 1994
Dilution of drilling fluid in forming cement slurries
SHELL OIL CO273 citations99
US5213160AMay 25, 1993
Method for conversion of oil-base mud to oil mud-cement
SHELL OIL CO163 citations99
US5515921AMay 14, 1996
Water-base mud conversion for high tempratice cementing
SHELL OIL CO120 citations98
US5476144ADec 19, 1995
Conversion of oil-base mud to oil mud-cement
SHELL OIL CO107 citations98
US5382290AJan 17, 1995
Conversion of oil-base mud to oil mud-cement
SHELL OIL CO137 citations98
US5358049AOct 25, 1994
Conversion of emulsion mud to cement
SHELL OIL CO110 citations98
US5226961AJul 13, 1993
High temperature wellbore cement slurry
SHELL OIL CO345 citations97
US5314031AMay 24, 1994
Directional drilling plug
SHELL OIL CO63 citations96
US5307876AMay 3, 1994
Method to cement a wellbore in the presence of carbon dioxide
SHELL OIL CO60 citations96
US5305831AApr 26, 1994
Blast furnace slag transition fluid
SHELL OIL CO99 citations96
US5488991AFeb 6, 1996
Alumina wellbore cement composition
SHELL OIL CO52 citations93
US5309999AMay 10, 1994
Cement slurry composition and method to cement wellbore casings in salt formations
SHELL OIL CO39 citations93
US5333690AAug 2, 1994
Cementing with blast furnace slag using spacer
SHELL OIL CO21 citations92
US5330006AJul 19, 1994
Oil mud displacement with blast furnace slag/surfactant
SHELL OIL CO33 citations92
US5316083AMay 31, 1994
Blast furnace slag spacer
SHELL OIL CO51 citations92
US5309997AMay 10, 1994
Well fluid for in-situ borehole repair
SHELL OIL CO23 citations92
US5277519AJan 11, 1994
Well drilling cuttings disposal
SHELL OIL CO31 citations92
US5370181ADec 6, 1994
Anti gas-migration cementing
SHELL OIL CO28 citations89
US5351759AOct 4, 1994
Slag-cement displacement by direct fluid contact
SHELL OIL CO37 citations89
US5332040AJul 26, 1994
Process to cement a casing in a wellbore
SHELL OIL CO14 citations74
US5275511AJan 4, 1994
Method for installation of piles in offshore locations
SHELL OIL CO11 citations69