Patent Number: 6,332,920

Title: Slag for cementing a well, in particular an oil well

Abstract: The invention concerns the cementation of a well. A slag is used which comprises a hydraulic binder, a microsilica, a mineral addition, a superplasticizing agent and water, under defined granulometry and percentage conditions. The solublefigure relates to three compositions according to the invention but which differ by the origin of the microsilica. The invention applies notably to the cementation of an oil well.

Inventors: Noik; Christine (Le Pecq, FR), Rivereau; Alain (Rueil Malmaison, FR), Vernet; Christian (Jouy-Mauvoisin, FR)

Assignee: Bouygues

International Classification: C04B 18/04 (20060101); C04B 28/00 (20060101); C04B 28/04 (20060101); C04B 18/14 (20060101); C09K 8/42 (20060101); C09K 8/46 (20060101); C04B 014/04 ()

Expiration Date: 12/25/2018