Sementeringsslagg for en br°nn, sµrlig en oljebr°nn

摘要

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.