1
Roger J Card, J Ernest Brown, Palathinkara S Vinod, Dean M Willberg, Mathew M Samuel, Frank F Chang: Methods for limiting the inflow of formation water and for stimulating subterranean formations. Schlumberger Technology Corporation, Douglas Y Barbo, November 9, 1999: US05979557 (299 worldwide citation)

A method is provided for limiting the inflow of formation water during a well turn around to maximize polymer recovery after a hydraulic fracturing treatment of a formation. The method includes a step for selectively blocking the pore structure in a water-bearing zone and not blocking the pore struc ...


2
Qi Qu, Erik B Nelson, Dean M Willberg, Mathew M Samuel, Jesse C Lee Jr, Frank F Chang, Roger J Card, Palathinkara S Vinod, J Ernest Brown, Ronnie L Thomas: Compositions containing aqueous viscosifying surfactants and methods for applying such compositions in subterranean formations. Schlumberger Technology Corporation, Robin C Nava, Thomas O Mitchell, Stephen F Schlather, August 20, 2002: US06435277 (173 worldwide citation)

The improved recovery of hydrocarbons from subterranean formations by hydraulically fracturing a subterranean formation is accomplished. Fracturing fluids using a viscosifying surfactant fluid containing viscosifying micelles, for example, wormlike micelles, are useful to improve recovery of hydroca ...


3
Curtis L Boney, Dean M Willberg: Methods and fluid compositions designed to cause tip screenouts. Schlumberger Technology Corporation, Thomas O Mitchell, Robin Nava, Brigitte L Echols, January 4, 2005: US06837309 (117 worldwide citation)

In stimulation treatments to increase the production of hydrocarbons from subterranean formations, especially in treatments including hydraulic fracturing followed by gravel packing, desirable short wide fractures are created and filled with proppant by deliberately including in the first fluid/prop ...


4
Dean M Willberg, Christopher N Fredd, Marina Bulova: Method of using degradable fiber systems for stimulation. Schlumberger Technology Corporation, Darla Fonsica, David Cate, Robin Nava, October 2, 2007: US07275596 (65 worldwide citation)

A method for minimizing the amount of metal crosslinked viscosifier necessary for treating a wellbore with proppant or gravel is given. The method includes using fibers to aid in transporting, suspending and placing proppant or gravel in viscous carrier fluids otherwise having insufficient viscosity ...


5
Timothy Lesko, J Ernest Brown, Dean M Willberg, Ivan Kosarev, Anatoly Medvedev: Heterogeneous proppant placement in a fracture with removable channelant fill. Schlumberger Technology Corporation, Rachel Greene, Thomas O Mitchell, Dave Cate, September 1, 2009: US07581590 (64 worldwide citation)

A method of heterogeneous proppant placement in a subterranean fracture is disclosed. The method comprises injecting well treatment fluid including proppant (16) and proppant-spacing filler material called a channelant (18) through a wellbore (10) into the fracture (20), heterogeneously placing the ...


6
Iain Cooper, Dean M Willberg, Matthew J Miller: Real-time automated heterogeneous proppant placement. Schlumberger Technology Corporation, David Cate, Rdàn Nava, Dale Gaudier, November 18, 2008: US07451812 (48 worldwide citation)

A system and a method for heterogeneous proppant placement in a fracture (12) in a subterranean formation (18) are disclosed. The system includes a delivery system (10) for delivering proppant and treatment fluid to the fracture (12), a sensor (20) for measuring geometry of the fracture and a comput ...


7
Ann M W Hoefer, Philip F Sullivan, Golchehreh Salamat, Curtis L Boney, Jesse C Lee, Yiyan Chen, Dean M Willberg, Marina Bulova, Christopher N Fredd, Belgin Baser, Timothy L Pope: Well treatment with dissolvable polymer. Schlumberger Technology Corporation, Thomas O Mitchell, David Cate, Robin Nava, July 15, 2008: US07398826 (37 worldwide citation)

Well treatment is disclosed that includes injecting a well treatment fluid with insoluble polyol polymer such as polyvinyl alcohol (PVOH) dispersed therein, depositing the insoluble polymer in the wellbore or an adjacent formation, and thereafter dissolving the polymer by reducing salinity and/or in ...


8
Dean M Willberg, Marina Bulova, Christopher N Fredd, Alexey Vostrukhov, Curtis L Boney, John Lassek, Ann M W Hoefer, Philip F Sullivan: Degradable material assisted diversion or isolation. Schlumberger Technology Corporation, David Cate, Rachel Greene, Robin Nava, August 17, 2010: US07775278 (35 worldwide citation)

A method for well treatment by forming a temporary plug in a fracture, a perforation, a wellbore, or more than one of these locations, in a well penetrating a subterranean formation is provided, in which the method of well treatment includes: injecting a slurry comprising a degradable material, allo ...


9
Dean M Willberg, Marina Bulova, Christopher N Fredd, Alexey Vostrukhov, Curtis L Boney, John Lassek, Ann M W Hoefer, Philip F Sullivan: Degradable material assisted diversion or isolation. Schlumberger Technology Corporation, Michael Dae, Daryl Wright, Robin Nava, May 1, 2012: US08167043 (27 worldwide citation)

A method for well treatment by forming a temporary plug in a fracture, a perforation, a wellbore, or more than one of these locations, in a well penetrating a subterranean formation is provided, in which the method of well treatment includes: injecting a slurry comprising a degradable material, allo ...


10
Bentley J Palmer, Dean M Willberg, Roger J Card, J Ernest Brown, Philip F Sullivan: Method to remove particulate matter from a wellbore using translocating fibers and/or platelets. Schlumberger Technology Corporation, Robin C Nava, Stephen F Schlather, Thomas O Mitchell, July 16, 2002: US06419019 (26 worldwide citation)

An improved method for transport of particulate matter in a wellbore fluid, and particularly the transport of particulate matter in subterranean wells, such as hydrocarbon wells, is disclosed, the method being characterized by utilization of specified fibers to aid in transport of the particulate ma ...