| 摘要 |
A method of treating a subterranean hydrocarbon-bearing formation comprising unconsolidated or poorly consolidated particulates, the method comprising contacting the formation with a solution or a dispersion of an organosilane, characterised in that the organosilane is a silylated polymer of formula (I): (RO)3-nRnSi - A - B - A - Si(OR)3-nRn (I) wherein each R is independently a substituted or unsubstituted, preferably unsubstituted, alkyl group having from 1 to 6 carbon atoms, preferably, 1 to 3 carbon atoms, or a -C(O)R group where R is as hereinbefore defined; n is 0, 1 or 2; each A is a divalent organic radical, for example, an alkoxy linking group such as propoxy; and B is a poly(oxyalkylene) linking group, a polyurethane linking group, or a poly(meth)acrylate linking group wherein the poly(oxyalkylene) linking group or the polyurethane linking group has a number average molar mass in the range of 600 to 20,000 g mol-1 and the poly(meth)acrylate linking group has a number average molar mass in the range of 600 to 40,000 g mol-1.
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