Methods and compositions for placing particulate materials...

Details Methods and compositions for placing particulate materials... Methods and compositions for placing particulate materials...

C - Chemistry, Metallurgy

09

K

C09K 8/94 (2006.01) C09K 8/80 (2006.01) E21B 43/267 (2006.01)

Patent

CA 2525704

Methods and compositions for placing particulate materials in subterranean zones penetrated by well bores are provided. The methods basically comprise the following steps. A pumpable compacted particulate material fluid is prepared or provided comprising compacted particulate material and a foam within the pore spaces of the compacted particulate material. The foam comprises a pressurized gas and a liquid solution of a foam forming surfactant. After being prepared or provided, the compacted particulate material fluid is pumped into a subterranean zone by way of a well bore penetrating the zone.

Cette invention concerne des procédés et des compositions permettant de placer des matériaux particulaires dans des zones souterraines pénétrées par des puits de forage. Ces procédés comprennent d'une manière générale les étapes suivantes consistant : à préparer ou à utiliser un fluide de matériau particulaire compacté pompable comprenant un matériau particulaire compacté et une mousse située dans les espaces lacunaires dudit matériau particulaire compacté, laquelle mousse renferme un gaz sous pression et une solution liquide de tensioactif moussant ; puis à pomper ledit fluide de matériau particulaire compacté dans une zone souterraine au moyen d'un puits de forage pénétrant ladite zone.

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