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Le, Roy Delage Sylvaine, Martin Beurel Muriel, Keith Dismuke, Nelson Erik: Self adaptive cement systems. Services Petroliers Schlumberger, Schlumberger Technology, Schlumberger Holding, Schlumberger Canada, Sofitech, Le, Roy Delage Sylvaine, Martin Beurel Muriel, Keith Dismuke, Nelson Erik, MENES Chatherine, November 25, 2004: WO/2004/101952 (92 worldwide citation)

A self-healing cement system includes cement, water and at least one additive that swells in contact with water from reservoir or from formation in the case of a structural failure in the set cement to provide a physical barrier in the zone of failure. Examples of such material include particles of ...


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Le, Roy Delage Sylvaine, Guillot Dominique, Dismuke Keith, Nelson Erik: Self adaptive cement systems. Services Petroliers Schlumberger, Schlumberger Technology, Schlumberger Holdings, Schlumberger Canada, Sofitech, Le, Roy Delage Sylvaine, Guillot Dominique, Dismuke Keith, Nelson Erik, MENES Catherine, November 25, 2004: WO/2004/101951 (89 worldwide citation)

A self-adaptive cement system includes cement, water and at least one additive that reacts or and expands in contact with oil and gas. Several chemical products have been identified including rubber alkylstyrene, polynorbornene, resins such precrosslinked substituted vinyl acrylate copolymers and di ...


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Le Roy Delage Sylvaine, Bulte Helene, Bellabarba Mario: Self-repairing isolation systems. Schlumberger Services Petrol, Schlumberger Technology, Schlumberger Holdings, Prad Res & Dev, February 18, 2009: EP2025732-A1 (15 worldwide citation)

The present invention discloses a composition for completing a well comprising a pumpable fluid made of a settable material and a reactive material able to swell in contact with liquid and/or gaseous hydrocarbon and/or water and/or carbon dioxide, said reactive material added in a quantity such that ...


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Le Roy Delage Sylvaine, Dargaud Bernard, Baret Jean Francois, Thiercelin Marc: Cementing compositions and the use of such compositions for cementing oil wells or the like. Sofitech, Dowell Schlumberger Services, September 5, 2001: EP1129047-A1 (13 worldwide citation)

Cementing compositions for oil wells or the like comprise between 30 % and 100 % (by weight of cement) of rubber particles, with grain size in the 40-60 mesh range. Adding rubber particles in accordance with the invention produces a low density slurry while keeping the cement permeability low. Compo ...


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Michaux Michel, Le, Roy Delage Sylvaine: Cementing composition comprising within un-reacted cement. Services Petroliers Schlumberger, Schlumberger Technology, Schlumberger Holdings, Schlumberger Canada, Prad Research And Development, Michaux Michel, Le, Roy Delage Sylvaine, RAYBAUD Hélène, March 27, 2008: WO/2008/034461 (10 worldwide citation)

The invention provides a cementing composition for use in oilfield application, wherein a significant amount of cement is left intentionally un-hydrated when the cement is set; such that said amount of un-hydrated cement becomes hydrated when the set cement is damaged.


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Le Roy Delage Sylvaine, Thiercelin Marc: Compositions de cimentation et application de ces compositions pour la cimentation des puits petroliers ou analogues. Dowell Schlumberger Services, April 13, 2001: FR2799458-A1 (8 worldwide citation)

The present invention provides cementing compositions for an oil well or the like, comprising an hydraulic binder, dense particles with a density higher than the density of the hydraulic binder, and reinforcing particles with a density of less than 1.5 g/cm, preferably less than 1.2 g/cm, constitute ...


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Regnault de La Motte Loic, Le Roy Delage Sylvaine: Method and composition for zonal isolation of a well. Schlumberger Services Petrol, October 8, 2008: EP1978071-A1 (6 worldwide citation)

The invention provides a system comprising: a tubular (1) containing a first surface (11) comprising a coating (2) made of a first swellable material (3) coating said first surface (11), wherein said coating has a second surface (21) and said first swellable material (3) is able to swell in contact ...


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Drochon Bruno, James Simon, Le Roy Delage Sylvaine, Carelli Clara: Squeeze composition for restoring isolation. Schlumberger Services Petrol, Schlumberger Technology, Schlumberger Holdings, Prad Res & Dev, June 17, 2009: EP2071003-A1 (6 worldwide citation)

The invention discloses a method of treating a wellbore, comprising the step mixing an alkali swellable polymer and a first material, wherein said first material does not cause said alkali swellable polymer to swell significantly; and placing said alkali swellable polymer and said first material in ...


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REGNAULT DE LA MOTHE Loic, LE ROY DELAGE Sylvaine: Système et procédé destinés à améliorer lisolement zonal dun puits, System and method for improving zonal isolation in a well. Services Petroliers Schlumberger, Schlumberger Technology, Schlumberger Holdings, Schlumberger Canada, Prad Research And Development, REGNAULT DE LA MOTHE Loic, LE ROY DELAGE Sylvaine, October 27, 2011: WO/2011/131307 (5 worldwide citation)

The disclosure relates to a system (10) for improving zonal isolation in a well in a subterranean formation, comprising: a tubular (1) having a outer surface (11); and a swellable coating (2) coating the outer surface (11) of said tubular (1), said swellable coating (2) having an external surface (2 ...