1
Bertrand Guichard, Barry Wood, Patrick Vongphouthone: Fluid loss reducer for high temperature and high pressure water-based mud application. Eliokem S, Alvin T Rockhill, September 5, 2006: US07101829 (67 worldwide citation)

The present invention concerns a water-based drilling mud for utilization in the drilling of oil wells comprising an aqueous phase wherein the aqueous phase contains an oil soluble polymer in the form of a gel as fluid loss reducer. The subject invention further reveals a process for preparing an oi ...


2
Bertrand Guichard, Barry Wood, Patrick Vongphouthone: Fluid loss reducer for high temperature high pressure water based-mud application. Eliokem S, Alvin T Rockhill, August 14, 2007: US07256159 (22 worldwide citation)

The present invention concerns a water-based drilling mud for utilization in the drilling of oil wells comprising an aqueous phase wherein the aqueous phase contains an oil soluble polymer in the form of a gel as a fluid loss reducer. The subject invention further reveals a method of lubricating a d ...


3
Bertrand Guichard, Barry Wood, Patrick Vongphouthone: Fluid loss reducer for high temperature high pressure water based-mud application. Eliokem S, Alvin T Rockhill, November 11, 2008: US07449430 (5 worldwide citation)

The present invention concerns a water-based drilling mud for utilization in the drilling of oil wells comprising an aqueous phase wherein the aqueous phase contains an oil soluble polymer in the form of a gel as a fluid loss reducer. The subject invention further reveals a process for preparing an ...


4
Francesco De Buzzaccarini, Thomas Wilhelm Hoerner, Bertrand Guichard: Liquid detergent and foam compositions comprising a diester or diamide quaternary ammonium compound. The Procter & Gamble Company, C Brant Cook, Kim William Zerby, Steven W Miller, October 16, 2001: US06303563 (3 worldwide citation)

The present invention relates to a liquid detergent composition comprising enzymes and a boron derived enzyme stabilising agent which can be used as a cleaning and softening composition in domestic laundry processes and which further comprises diester or diamide quaternary ammonium compound, prefera ...


5
Bertrand Guichard, Denis Guillaume: Hydrodemetallization and hydrodesulphurization catalysts, and use in a single formulation in a concatenated process. IFP Energies Nouvelles, Millen White Zelano & Branigan P C, March 12, 2013: US08394262 (2 worldwide citation)

The invention describes a catalyst comprising at least one metal from group VIB, at least two metals from group VIII termed the major promoter VIII-1 and co-promoters VIII-i, where i is in the range 2 to 5, and at least one support constituted by a porous refractory oxide, in which the elements from ...


6
Karin Marchand, Bertrand Guichard, Mathieu Digne, Michael Rebeilleau, Sylvie Lopez, Antoine Hugon, Audrey Bonduelle: Catalyst that can be used in hydrotreatment, comprising metals of groups VIII and VIB, and preparation with acetic acid and dialkyl succinate C1-C4. TOTAL RAFFINAGE MARKETING, IFP ENERGIES NOUVELLES, Miller White Zelano & Branigan P C, November 3, 2015: US09174202 (1 worldwide citation)

A catalyst usable in hydrotreatment processes: an alumina-based amorphous support, phosphorus, a C1-C4 dialkyl succinate, acetic acid and a hydro-dehydrogenizing function of at least one group VIII element and at least one group VIB element, preferably made up of cobalt and molybdenum, a catalyst wh ...


7
Malika Boualleg, Bertrand Guichard: Mesoporous catalyst for hydroconversion of residues and method for preparing the latter. IFP Energies nouvelles, Millen White Zelano and Branigan PC, Csaba Henter, November 20, 2018: US10130942

The invention relates to the preparation of a catalyst containing: a mainly aluminum oxide calcined support; a hydro-dehydrogenating active phase containing at least one metal of group VIB, the process including: a) a first precipitation step of at least one basic precursor and at least one acidic p ...


8
Laurent Simon, Bertrand Guichard, Gregory Lapisardi, Hugues Dulot, Valentina De Grandi, Delphine Minoux, Jean Pierre Dath: Catalyst for use in hydroconversion, comprising at least one zeolite and metals from groups VIII and VIB, and preparation of the catalyst. TOTAL RAFFINAGE MARKETING, IFP ENERGIES NOUVELLES, Millen White Zelano & Branigan P C, July 14, 2015: US09079174

The invention concerns a catalyst containing a support comprising at least one binder and at least one zeolite having at least one series of channels the opening of which is defined by a ring containing 12 oxygen atoms, said catalyst comprising phosphorus, at least one C1-C4 dialkyl succinate, aceti ...


9
Malika Boualleg, Bertrand Guichard: Mesoporous and macroporous catalyst for hydroconversion of residues and preparation method. IFP Energies nouvelles, Millen White Zelano and Branigan PC, John Sopp, November 13, 2018: US10125327

Process of preparing hydroconversion catalyst comprising: a calcined, predominantly alumina, oxide support; a hydrogenating-dehydrogenating active phase comprising group VIB metal, the catalyst having: specific surface area ≥100 m2/g, total pore volume ≥0.75 ml/g, median mesopore diameter by volume ...


10
Cecile Mazard, Bertrand Guichard, Andrea Valenti: Drilling fluid. Eliokem S, Alvin T Rockhill, April 23, 2013: US08424619

This invention is based upon the finding that certain chlorosulfonated α-olefin copolymers can be beneficially utilized in drilling fluids that are utilized in drilling subterreanean wells. For instance, it has been unexpectedly found that certain chlorosulfonated α-olefin copolymers can be benefici ...