1

2
Duerksen John H: Systeme dinjection et de production pour puits unique, Single well injection and production system. Chevron Research And Technology Company, SIM & MCBURNEY, March 15, 1994: CA1327744 (1 worldwide citation)

ABSTRACT OF THE DISCLOSURE A method is disclosed for fluid injection and oilproduction from a single wellbore which includesproviding a path of communication between the injectionand production zones.


3
Duerksen John H, Anderson Donald J, Mccallum Doug J, Petrick Mark: Systeme de production et dinjection a puits unique, Single well injection and production system. Chevron Research And Technology Company, SIM & MCBURNEY, April 18, 1995: CA2058108 (1 worldwide citation)

A method is disclosed for fluid injection and oil productionfrom a single wellbore which includes providing a path ofcommunication between the injection and production zones.


4
Duerksen John H, Wall Robert G, Knight Jack D: Additifs surfactants a base de dimere sulfonate pour faire mousser une phase dentrainement gazeuse et procede pour augmenter la recuperation des hydrocarbures dans une formation souterraine, Sulfonate dimer surfactant additives for gas foam drives and a process of stimulating hydrocarbon recovery from a subterranean formation. Chevron Research And Technology Company, SMART & BIGGAR, August 4, 1987: CA1224914

ABSTRACT OF THE DISCLOSURE An improved non-condensible gas injectionprocess for recovering hydrocarbons from a subterraneanformation. The process includes the use of alpha-olefinsulfonate monomer and dimer surfactants along with the gasto form a gas foam drive medium which is injected into theformat ...


5
Knight Jack D, Wall Robert G, Duerksen John H: Additifs surfactants a base de sulfonate d.alpha. olefine pour faire mousser une phase dentrainement gazeuse et procede pour augmenter la recuperation des hydrocarbures dans une formation souterraine, .Alpha. olefin sulfonate surfactant additives for gas foam drives and a process of stimulating hydrocarbon recovery from a subterranean formation. Chevron Research And Technology Company, SMART & BIGGAR, August 4, 1987: CA1224915

ABSTRACT OF THE DISCLOSURE An improved non-condensible gas injection pro-cess for recovering hydrocarbons from a subterranean for-mation. The process includes the use of alpha-olefinsulfonate surfactants along with the non-condensible gasto form a gas-foam drive medium which is injected into theform ...


6
Duerksen John H: Methode et dispositif daffinage a chaud in situ, Method and apparatus for in-situ heated annulus refining process. Chevron Research And Technology Company, SIM & MCBURNEY, May 9, 1995: CA2071351

Recovery of viscous petroleum such as from tar sands isassisted using a controlled flow of hot fluid andhydrogen-generating gas in a flow path within the formation;thus a solid-wall hollow tubular member in the formation isused for conducting hot fluid to promote hydrogenation inconjunction with a h ...


7
Duerksen John H: Procede de raffinage in situ, In-situ heated annulus refining process. Chevron Research And Technology Company, SIM & MCBURNEY, May 30, 1995: CA2047653

Recovery of viscous petroleum such as from tar sands isassisted using a controlled flow of hot fluid and hydrogen-containing gas in a flow path within the formation; thus asolid-wall hollow tubular member in the formation is usedfor conducting hot fluid to promote hydrogenation inconjunction with a ...


8
Duerksen John H, Wall Robert G, Knight Jack D: Procede dactivation cyclique a la vapeur, utilisant un surfactif a base de dimere de sulfonate, pour lextraction dhydrocarbures dun gisement souterrain, Sulfonate dimer surfactant cyclic steam stimulation process for recovering hydrocarbons from a subterranean formation. Chevron Research And Technology Company, SMART & BIGGAR, January 5, 1988: CA1230962

ABSTRACT OF THE DISCLOSUREAn improved cyclic steam injection process forrecovering hydrocarbons from a subterranean formation.The process includes the use of alpha-olefin sulfonatedimer surfactants in the steam to form a foam-steam drivemedium which is injected into the formation through at aninject ...


9
Anderson Donald J, Duerksen John H, Mccallum Doug J, Petrick Mark: Methode de recuperation dhydrocarbures a laide dun systeme dinjection/production a puits unique, Method of recovering hydrocarbons using single well injection/production system. Chevron Research And Technology Company, SIM & MCBURNEY, February 7, 1995: CA2031814

Production of viscous hydrocarbons is initiated by firstinjecting an injection fluid down at least two tubingstrings in a wellbore having multiple tubing stringstherein. Following an initiation phase, flow of injectionfluid in the production tubing string is ceased, andproduction of formation fluid ...


10
Duerksen John H, Wall Robert G, Knight Jack D: Enhanced recovery of hydrocarbons from subterranean formations. Chevron Res, May 28, 1987: GB2182962-A

A method of recovering hydrocarbons from a subterranean formation in the absence of steam includes the use of alpha-olefin sulfonates and/or alpha-olefin sulfonate dimers and oligomers along with a non- condensible gas to form a gas-foam drive medium which is injected into the formation through at l ...