BR7410063A
(en )
1976-05-25
PROCESS FOR THE RECOVERY OF OIL FROM AN UNDERGROUND FORMATION
AR211220A1
(en )
1977-11-15
ELECTROTHERMAL METHOD TO BRING OIL
BR7403514D0
(en )
1974-11-19
PROCESS FOR RECOVERING PETROLEUM FROM AN UNDERGROUND FORMATION CONTAINING PETROLEUM
BR7304068D0
(en )
1974-06-27
PETROLEUM PROCESS AND EQUIPMENT FOR THE EXTRACTION OF OIL OIL
BR7503013A
(en )
1976-03-23
PROCESS FOR REFINING CRUDE GLUCERIDE OIL COMPOSITIONS
BR7507694A
(en )
1976-08-10
PROCESS FOR PETROLEUM RECOVERY FROM A PERMANIBLE UNDERGROUND FORMATION CONTAINING PETROLEUM
BR7410404D0
(en )
1975-09-16
PROCESS FOR PETROLEUM RECOVERY FROM AN UNDERGROUND POROUS FORMATION CONTAINING PETROLEUM
BR7018882D0
(en )
1973-02-27
PROCESS FOR THE PREPARATION OF MINERAL LUBRICANT OIL CONTAINED FROM HYDROCARBONS AND MINERAL LUBRICANT OIL FROM HYDROCARBONS PRODUCED BY THAT PROCESS
BR7503869A
(en )
1976-07-06
PROCESS FOR THE RECOVERY OF HEAVY VISCOSE OILS AND BITUME FROM AN UNDERGROUND FORMATION WITH HYDROCARBONS
BR7310181D0
(en )
1974-08-15
PROCESS TO IMPROVE THE VISCOSITY INDEX OF A NEUTRAL MINERAL OIL BASE
AR198631A1
(en )
1974-07-15
PROCEDURE TO OBTAIN MINERAL OIL
BR7505749A
(en )
1976-08-03
PROCESS FOR RECOVERING PETROLEUM FROM AN UNDERGROUND FORMATION CONTAINING PETROLEUM
BR7503883A
(en )
1976-07-06
PROCESS FOR HYDROCARBON RECOVERY FROM AN UNDERGROUND FORMATION HYDROCARBON BEARING
BR7409850A
(en )
1976-05-25
OIL ADSORVER PROCESS
BR8000293A
(en )
1980-10-21
PROCESS TO RECOVER OIL FROM AN UNDERGROUND FORMATION CONTAINING OIL
BR7202175D0
(en )
1973-05-31
SHALE OIL RECOVERY PROCESS FROM SHALE PETROLIFERO
BR7304674D0
(en )
1974-08-15
NEA OIL CARRIER PROCESS FOR OIL RECOVERY FROM A UNDERGROUND FORMATION
CA920078A
(en )
1973-01-30
Recovery of oil from bituminous sands
BR7505252A
(en )
1976-08-03
PROCESS TO RECOVER ASPHALT OIL FROM AN UNDERGROUND FORMATION
BR7500678A
(en )
1975-11-11
PROCESS TO RECOVER HYDROCARBONS FROM AN UNDERGROUND FORMATION CONTAINING HYDROCARBONS
BR7202630D0
(en )
1973-05-24
LUBRICATING OIL COMPOSITION
BR7019349D0
(en )
1973-01-11
CRUDE OIL REFINING PROCESS
BR7204304D0
(en )
1973-05-17
PROCESS TO RECOVER PETROLEUM FROM AN UNDERGROUND FORMATION CONTAINING OIL
BR6913017D0
(en )
1973-01-16
PROCESS FOR THE PRODUCTION OF HYDROCARBONS FROM SHALE OIL
BR6915731D0
(en )
1973-04-17
PROCESS TO MAKE A MINERAL OIL RESISTANT TO OXIDATION