| 摘要 |
A method is for consolidating particulate matter in a well. The method comprises injecting a composition into a sand bearing formation. The composition comprises a curable non-aqueous, homogeneous liquid, an initiator for heat induced production of free radicals, a pot life extending inhibitor for stabilization of free radicals, and optionally an accelerator and optionally a filler. The non-aqueous, homogeneous liquid further comprises an at least partially unsaturated prepolymer including at least one of polyester and epoxy vinyl ester, and at least one vinyl or allyl containing monomer. The method further comprises subsequently injecting an aqueous, non-aqueous liquid or a gas for re-establishing permeability of the formation and letting the composition cure by free radical polymerization in the sand bearing formation at a temperature of 0-150° C. to form a cured sand consolidating material. |
