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Claude J Vercaemer, Brian W E Darling: Method and apparatus for cementing a well. Schlumberger Technology Corporation, Gordon G Waggett, Robin C Nava, July 11, 2000: US06085838 (144 worldwide citation)

A method of cementing a well permitting a reduction in the degree of diameter reduction of casing or liners required, and not requiring excessively large initial conductor casing, is described. The method is characterized by provision of an enlarged wellbore and a novel liner structure which is adap ...


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Philippe A Parcevaux, Bernard M Piot, Claude J Vercaemer: Cement compositions for cementing wells, allowing pressure gas-channeling in the cemented annulus to be controlled. Etudes et Fabrication Dowell Schlumberger, Ostrolenk Faber Gerb & Soffen, August 27, 1985: US04537918 (90 worldwide citation)

The invention relates to cement compositions for cementing wells, which allow pressure gas-channeling to be effectively controlled up to more than about 485.degree. F. The cement composition contains a styrene-butadiene latex and a stabilizer. The film of latex interrupts gas-channeling after an ext ...


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Erik Rhein Knudsen, Claude J Vercaemer, Laurent P Prouvost, Arthur W Milne, Jean Louis Pessin: Method and apparatus for cementing a well. Schlumberger Technology Corporation, Robin C Nava, Thomas O Mitchell, July 31, 2001: US06267181 (83 worldwide citation)

In one embodiment, the invention relates to a method or process, useful in cementing a well, especially a hydrocarbon well, which is characterized by the use of increased external and internal diameter liners, the method being characterized by provision and use of a novel liner and liner-tool assemb ...


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Erik Rhein Knudsen, Claude J Vercaemer, Laurent P Prouvost, Arthur W Milne, Jean Louis Pessin: Method and apparatus for cementing a well. Schlumberger Technology Corporation, Gordon G Waggett, Robin C Nava, August 8, 2000: US06098710 (37 worldwide citation)

In one embodiment, the invention relates to a method or process, useful in cementing a well, especially a hydrocarbon well, which is characterized by the use of increased external and internal diameter liners, the method being characterized by provision and use of a novel liner and liner-tool assemb ...


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Claude J Vercaemer: Instrumented packer. Schlumberger Technology, Trop Pruner & Hu PC, Kevin P McEnaney, Jaime A CastaƱo, May 9, 2006: US07040402 (26 worldwide citation)

A technique that is usable with a subterranean well includes communicating a fluid into a region of the well and monitoring a level of the fluid communicated via a downhole sensor. The communication is controlled in response to the monitoring.


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Claude J Vercaemer, Terry G Greene, Douglas J Pferdehirt: Methods of hydraulic fracturing. Schlumberger Technology Corporation, John E Vick, Maryam Bani Jamali, May 15, 2001: US06230805 (26 worldwide citation)

A method of hydraulic fracturing is provided in which at least two separate fracturing fluid components are pumped downhole, one of said components being pumped downhole within coiled tubing. The fracturing fluid components responsible for increasing or decreasing the viscosity of the fracturing flu ...


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Craig D Johnson, Matthew R Hackworth, Kian Rasa, Christopher S Del Campo, Rod W Shampine, Claude J Vercaemer, Gerhard Schoonderbeek: Expandable systems that facilitate desired fluid flow. Schlumberger Technology Corporation, Robert A Van Someren, Bryan P Galloway, Jaime A Castano, January 30, 2007: US07168485 (5 worldwide citation)

An expandable device, such as a sand screen, is used in a wellbore. The expandable device comprises an expandable base pipe and a filter layer that facilitates expansion of the device while maintaining filtering capability.


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John E Edwards, Ronan Le Gloahec, Claude J Vercaemer, Philippe Hocquet, Pierre Yves Corre, Nitin Y Vaidya: Downhole flow control with selective permeability. Schlumberger Technology Corporation, Trop Pruner & Hu P C, David G Matthews, September 6, 2011: US08011438 (5 worldwide citation)

An apparatus includes a base pipe and a fluid control material. The base pipe includes openings, and the fluid control material is mounted to the pipe to control fluid communication through the openings of the pipe. The fluid control material has a permeability that may be changed to selectively con ...


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Peter A Goode, Claude J Vercaemer: System and method for treating wells. Schlumberger Technology Corporation, Robert A VanSomeren, Bryan P Galloway, Jaime A Castono, June 6, 2006: US07055606 (3 worldwide citation)

A system and method is provided for utilizing both a wellbore completion and a formation treatment system. The formation treatment system comprises a bypass that directs well treatment fluid around the wellbore completion. The bypass protects the wellbore completion from potentially corrosive or ero ...