Aqueous based slurry and method of forming a consolidated gravel pack
AssigneeThe Dow Chemical Company
InventorVernon G. Constien
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Abstract
An aqueous based slurry is described comprising (1) a thickened water-based carrying fluid, (2) a particulate solid, e.g., gravel, and (3) a resin system comprising an epoxy resin and a novel crosslinking agent. The cross-linking agent is a polymethylene polyphenylamine bearing one or more silane groups of the formula --CH.sub.2 CH(OH)CH.sub.2 O--C.sub.3 -C.sub.6 alkylene --Si(OR').sub.3, wherein each R' independently is hydrogen or lower alkyl. This pumpable slurry is suitable for use in emplacing a permeable, consolidated gravel pack between the casing of a well and an incompetent subterranean formation. The slurry is easily formed on site by merely blending the components in an appropriate ratio using conventional equipment.
Claims13
A compound corresponding to the formula ##STR10## wherein m is from 0 to about 10;
- each R independently is H or Y provided that at least one R is Y;
- and Y is
- --CH.sub.2 CH(OH)CH.sub.2 O--C.sub.3 -C.sub.6 alkylene--Si(OR').sub.3
- and each R' independently is hydrogen or lower alkyl.
A composition comprising (A) a compound corresponding to the formula ##STR11## wherein m is from 0 to about 10;
- each R independently is H or Y provided that at least one R is Y;
- and Y is
- --CH.sub.2 CH(OH)CH.sub.2 --C.sub.3 -C.sub.6 alkylene--Si(OR').sub.3
- and each R' independently is hydrogen or lower alkyl, and (B) a compound corresponding to the formula ##STR12## wherein m has the aforesaid meaning.
Dependencies are inferred from the claim text.