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
Mathew M Samuel, Keith I Dismuke, Roger J Card, J Ernest Brown, Kevin W England: Methods of fracturing subterranean formations. Schlumberger Technology Corporation, Douglas Y&apos Barbo, Thomas O Mitchell, October 23, 2001: US06306800 (139 worldwide citation)

The improved recovery of hydrocarbons from subterranean formations by fracturing and matrix acidizing a subterranean formation is accomplished. Well treatment fluids having a viscoelastic surfactant fluid containing worm like micelles are useful to improve recovery of hydrocarbons and limit the loss ...


4
Mathew M Samuel, Frank F Chang, Roger J Card, Ronnie L Thomas: Compositions containing aqueous viscosifying surfactants and methods for applying such compositions in subterranean formations. Schlumberger Technology Corporation, Catherine Menes, Brigitte Jeffery, John Ryberg, October 28, 2003: US06637517 (75 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 ...


5
Arthur Milne, Eric Gin Wai Lian, Sandra Janette Montoya Padilla, Mario Ulloa, Frederic Vincent Martin, Mathew M Samuel: Relative permeability modification. Schlumberger Technology Corporation, Jeremy Tillman, Daryl Wright, Robin Nava, April 9, 2013: US08413719 (3 worldwide citation)

A fluid containing a viscous hyposaline aqueous solution of first and second cationic polymers that include quatemized ammonium groups, wherein the first cationic polymer includes a hydrophilic base polymer structure and the second cationic polymer includes a lipophilic base polymer Also disclosed i ...


6
Syed Ali, Javier Sanchez Reyes, Mathew M Samuel, Francois M Auzerais: Self-diverting acid treatment with formic-acid-free corrosion inhibitor. Schlumberger Technology Corporation, Martin Rzaniak, David Cate, Robin Nava, March 8, 2011: US07902124 (3 worldwide citation)

A method of treating a subterranean formation penetrated by a wellbore of a well having iron-containing components is carried out by introducing a treatment fluid into the wellbore of the well. The treatment fluid is formed from an aqueous solution, a mineral acid, a viscoelastic surfactant gelling ...


7
Huilin Tu, Agathe Robisson, Partha Ganguly, Mathew M Samuel: In-situ formation of solids for well completions and zonal isolation. Schlumberger Technology Corporation, Bridgid Laffey, Vincent Loccisano, James McAleenan, October 12, 2010: US07810562 (2 worldwide citation)

A sol of metallic alkoxide is pumped into a desired location in a wellbore and allowed to gel, creating solids in-situ. The sol is either unstabilized, requiring rapid placement before gelling, or the sol is stabilized, permitting off-site mixing. Sols can be stabilized with either surfactant or wit ...


8
Mathew M Samuel, Balkrishna Gadiyar, Sai Aung Zaw Min: Partially neutralized polyhydroxy acids for well treatments. Schlumberger Technology Corporation, David G Matthews, Rodney Warfford, Tim Curington, July 19, 2011: US07981845 (2 worldwide citation)

This relates to a method and composition for forming and utilizing a fluid in the oilfield services industry including exposing a polyacid and/or polyacid derivative to a preparation method, introducing the prepared polyacid and/or polyacid derivative to a fluid to form a treatment fluid, and treati ...


9
Mathew M Samuel, Yerik Balabatyrov, Frank F Chang, Martin Griffith, Liz Morris: Methods of perforation using viscoelastic surfactant fluids and associated compositions. Schlumberger Technology Corporation, Martin Rzaniak, David Cate, Robin Nava, February 1, 2011: US07878246 (1 worldwide citation)

The invention provides a method for perforating a well with a perforating fluid comprising a viscoelastic surfactant that essentially stops fluid leak-off after perforation in an overbalanced condition. Another aspect of the invention provides the perforating fluid in itself. The well has a wellbore ...


10
Carlos Abad, Mathew M Samuel, Kevin W England: Metal free crosslinking of galactomannan. Schlumberger Technology Corporation, Jeremy Tillman, Daryl Wright, Robin Nava, January 29, 2013: US08361935 (1 worldwide citation)

Methods of treating a subterranean formation are disclosed, using a fluid including an essentially metal-free organic crosslinker selected from amines, diamines, poly amines, polyamino polymers, alcohols, polyols, polyhydroxy polymers, hydroxyl amines, peptides and proteins, combined with a polysacc ...