Inventor
DUERKSEN JOHN H
US11 patents
⚠️ This page may combine multiple inventors who share the name “DUERKSEN JOHN H”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CHEVRON RES
7 patentsUS4488598ADec 18, 1984
Steam, noncondensable gas and foam for steam and distillation drive _in subsurface petroleum production
CHEVRON RES67 citations95
US5014787AMay 14, 1991
Single well injection and production system
CHEVRON RES29 citations92
US4607700AAug 26, 1986
Alpha-olefin sulfonate dimer surfactant cyclic steam stimulation process for recovering hydrocarbons from a subterranean formation
CHEVRON RES47 citations91
US4556107ADec 3, 1985
Steam injection including alpha-olephin sulfonate dimer surfactant additives and a process of stimulating hydrocarbon recovery from a subterranean formation
CHEVRON RES42 citations91
US5024275AJun 18, 1991
Method of recovering hydrocarbons using single well injection/production system
CHEVRON RES22 citations89
US4576232AMar 18, 1986
Non-condensible gas injection including alpha-olefin sulfonate dimer surfactant additives and a process of stimulating hydrocarbon recovery from a subterranean formation
CHEVRON RES25 citations81
US4572294AFeb 25, 1986
Non-condensible gas injection including alpha-olefin sulfonate surfactant additives
CHEVRON RES19 citations81
CHEVRON RES & TECH
4 patentsUS5145003ASep 8, 1992
Method for in-situ heated annulus refining process
CHEVRON RES & TECH297 citations98
US5054551AOct 8, 1991
In-situ heated annulus refining process
CHEVRON RES & TECH256 citations98
US5131471AJul 21, 1992
Single well injection and production system
CHEVRON RES & TECH50 citations89
US5123485AJun 23, 1992
Method of flowing viscous hydrocarbons in a single well injection/production system
CHEVRON RES & TECH15 citations66