1
Alfred R Jennings Jr: Disposal of produced formation fines during oil recovery. Mobil Oil Corporation, Alexander J McKillop, Michael G Gilman, Charles A Malone, November 29, 1988: US04787452 (244 worldwide citation)

Recovered formation fines are pumped in slurry form into an injection well during an enhanced oil recovery process e.g. a steam flood. Said injection can be done incrementally in stages in conjunction with said process. Said fines improve the sweep efficiency of the injected medium. This method is a ...


2
Alfred R Jennings Jr, Ibrahim S Abou Sayed: Oil recovery optimization using a well having both horizontal and vertical sections. Mobil Oil Corporation, Alexander J McKillop, George W Hager Jr, August 23, 1994: US05339904 (243 worldwide citation)

A steam, carbon dioxide, or solvent injection method is used in combination with a cased well completed to have an upper vertical section, a lower vertical section and a horizontal section which connects the two vertical sections. Steam, carbon dioxide, or solvent is injected down tubing in the well ...


3
Alfred R Jennings Jr: Use of CO.sub.2 /steam to enhance floods in horizontal wellbores. Mobil Oil Corporation, Alexander J McKillop, Charles J Speciale, Charles A Malone, January 8, 1991: US04982786 (238 worldwide citation)

A method to enhance steam flooding where at least two horizontal wellbores are utilized. Carbon dioxide is injected into a lower perforated horizontal wellbore. Once sufficient carbon dioxide has been injected into the formation, steam is injected through the lower horizontal wellbore. The steam dis ...


4
Alfred R Jennings Jr, Eve S Sprunt: Unique method of hydraulic fracturing. Mobil Oil Corporation, Alexander J McKillop, George W Hager Jr, Charles A Malone, April 4, 1995: US05402846 (188 worldwide citation)

An improved method for hydraulically fracturing a formation or reservoir where a thermo-setting gellable mixture is utilized. This thermo-setting mixture is foamed either at the surface or in situ under fracturing pressures and conditions. The mixture and carrier fluid is of a composition such that ...


5
Alfred R Jennings Jr, Lawrence R Stowe: Hydraulic fracturing utilizing a refractory proppant. Mobil Oil Corporation, Alexander J McKillop, Charles J Speciale, Charles A Malone, January 9, 1990: US04892147 (84 worldwide citation)

Silicon carbide is used as a proppant during a hydraulic fracturing process. The proppant is particularly useful when steam-flooding or acidizing a formation. This proppant is crush resistant and impervious to HCl and HCl/HF acids. High formation and reservoir stimulation temperatures do not affect ...


6
Alfred R Jennings Jr: Method for formation stimulation in horizontal wellbores using hydraulic fracturing. Mobil Oil Corporation, Alexander J McKillop, Charles J Speciale, Charles A Malone, July 3, 1990: US04938286 (76 worldwide citation)

A method for stimulating a formation penetrated by a horizontal wellbore where hydraulic fracturing is utilized. The horizontal wellbore casing is perforated on its top side. Thereafter, the formation is fractured through said perforations with a fracturing fluid containing a fused refractory proppa ...


7
Alfred R Jennings Jr, Malcolm K Strubhar: Method for enhancement of sequential hydraulic fracturing using control pulse fracturing. Mobil Oil Corporation, A J McKillop, G W Hager, C A Malone, July 20, 1993: US05228510 (72 worldwide citation)

A method for fracturing a subterranean formation containing desired natural resources in which controlled pulse fracturing (CPF) is combined with hydraulic fracturing in a second wellbore along with hydraulic fracturing in a first wellbore. Multiple radial vertical fractures are created by CPF in th ...


8
Alfred R Jennings Jr, Lawrence R Stowe: Hydraulic fracturing with a refractory proppant for sand control. Mobil Oil Corporation, Alexander J McKillop, Michael G Gilman, Charles A Malone, April 4, 1989: US04817717 (68 worldwide citation)

A process for hydraulic fracturing where a fracturing fluid contains a clay stabilizing agent. Said agent stabilizes clay particles or fines along the face of a resulting formation fracture. Thereafter a fused refractory proppant is injected into the fracture. The proppant increases thermal conducti ...


9
Alfred R Jennings Jr: Simultaneous hydraulic fracturing using fluids with different densities. Mobil Oil Corporation, Alexander J McKillop, George W Hager Jr, Charles A Malone, November 15, 1994: US05363919 (67 worldwide citation)

Two spaced apart zones of a formation are simultaneously hydraulically fractured. A lower density fracturing fluid is injected into an upper zone of the formation via an annulus of a perforated wellbore communicating with the upper zone thereby causing a fracture to propagate. Simultaneously therewi ...


10
Alfred R Jennings Jr: Use of thin liquid spacer volumes to enhance hydraulic fracturing. Mobil Oil Corporation, Alexander J McKillop, George W Hager Jr, Charles A Malone, May 2, 1995: US05411091 (67 worldwide citation)

A method for enhanced hydraulic fracturing which comprises injecting a proppant laden fracturing fluid into a formation or reservoir at a rate and pressure sufficient to fracture said formation. Next, a thin spacer fluid is injected into the created fracture. Afterwards, a proppant laden fracturing ...