1
Kiel Othar M: Method of fracturing subterranean formations using oil-in-water emulsions. Esso Production Research Company, January 16, 1973: US3710865 (56 worldwide citation)

A fracturing method wherein an improved oil-in-water emulsion is injected into a subterranean formation under sufficient pressure to open a fracture in the formation and constituents of the emulsion are thereafter produced from the formation. The emulsion contains a major volume proportion of an int ...


2
Kiel Othar M: Treatment of wells with fluids containing complexes. Esso Production Research Company, September 25, 1973: US3760881 (55 worldwide citation)

A subterranean formation surrounding a wellbore is treated by injecting into the formation a water-based viscous fluid containing a complex produced by the reaction of an aliphatic quaternary ammonium compound with a water-soluble compound selected from the group consisting of monosaccharides, disac ...


3
Kiel Othar M: Hydraulic fracturing method. Esso Production Research Company, March 27, 1973: US3722595 (38 worldwide citation)

A fracturing method wherein an emulsified fluid is injected into a subterranean formation under sufficient pressure to open a fracture in the formation. The fracturing method is performed by continuously passing the liquid used as the external phase through a conduit to establish a turbulent flow st ...


4
Kiel Othar M: Fracturing method using acid external emulsions. Esso Production Research Company, Graham Robert L, March 26, 1974: US3799266 (20 worldwide citation)

A subterranean carbonate formation is treated by injecting into the formation an emulsion comprising an aqueous acid solution as the external phase and a hydrocarbon oil as the internal phase. The external acid phase constitutes at least 20 volume percent of the emulsion and preferably between 20 an ...


5
Kiel Othar M: Process of hydraulic fracturing with viscous oil-in-water emulsion. Esso Production Research Company, January 5, 1971: US3552494 (12 worldwide citation)

A method for the hydraulic fracturing of a subterranean formation wherein an oil-in-water emulsion containing a heavy crude oil, petroleum fraction, or similar hydrocarbon oil having a viscosity in excess of about 1500 centipoises at 100.degree. F. is injected into a well at a rate sufficient to ope ...


6
Wood Donald B, Kiel Othar M: Gravel pack method. October 3, 1972: US3695355 (10 worldwide citation)

A gravel packing method wherein a viscous fluid is injected into an unconsolidated formation at such a rate and pressure to form a cavity therein and a specially graded aggregate is pressure packed in the cavity to form an outer sand exclusion zone and an inner high permeability zone. The high perme ...


7
Ahearn George P, Kiel Othar M: Hydraulic fracturing operations. Company Esso Production Research, August 24, 1971: US3601198 (10 worldwide citation)

A hydraulic fracturing operation wherein a viscous residual petroleum fraction or similar hydrocarbon oil containing an oil-soluble anionic surface-active agent in a concentration sufficient to increase the viscosity index of the oil is used as a fracturing fluid.


8
Graham John W, Kiel Othar M, Terry William M, Sinclair Albert R: Hydraulic fracturing using petroleum coke. Esso Production Research Company, May 23, 1972: US3664420 (7 worldwide citation)

A fluid containing suspended particles of petroleum coke is injected into a fracture formed in a subterranean formation. The injection conditions are such that the coke particles are carried to the ends of the fracture where they screen out and form low permeability zones. Continued injection of a f ...


9
Kiel Othar M: Method of treating a well using a volatile hydrocarbon liquid. Esso Production Research Company, October 23, 1973: US3766986 (5 worldwide citation)

A method for treating a subterranean formation surrounding a wellbore wherein a viscous aqueous liquid containing an emulsifying agent and suspended propping agent particles is mixed with a volatile hydrocarbon liquid at a pressure higher than the vapor pressure of the volatile hydrocarbon liquid, a ...


10
Terry William M, Graham John W, Sinclair Albert R, Kiel Othar M: Method for fracturing subterranean formations. Esso Production Research Company, October 24, 1972: US3700032 (5 worldwide citation)

A fracturing method wherein a fluid containing particles of petroleum coke are injected into a subterranean formation at a pressure sufficient to open a fracture therein.