Patent ID: 7825074
Filing Date: 2010-11-02
Classification: C09K

Abstract:
1. A process for a consolidation which is hydrolytically stable under hydrothermal conditions or for a change of a wetting behavior of a geological formation which is at least one of porous and particulate, wherein the process comprises introducing into the geological formation a consolidant and curing the introduced consolidant under elevated pressure and elevated temperature, the consolidant comprising at least one of a hydrolyzate and a precondensate of (a) at least one organosilane of formula (I)  in which the radicals R are the same or different and are each hydrolytically non-removable groups, the radicals X are the same or  different and are each hydroxyl groups or hydrolytically removable groups and n is 1, 2 or 3, (b) optionally, at least one hydrolyzable silane of formula (II) in which the radicals X are each as defined above, and (c) at least one metal compound of formula (III)  in which M is a metal of main groups I to VIII or of transition groups II to VIII of the Periodic Table of the Elements including boron, X is as defined for formula (I), with the proviso that two radicals X may be replaced by one oxo group, and a corresponds to a valence of M, where a molar ratio of compounds of formulae (I) and (II) to compound(s) of formula (III) is from 8000:1 to 8:1 and being present in a particle-free form before being introduced into the geological formation.