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US 10,947,442 B2Granted
Hydratable polymer slurry and method for water permeability control in subterranean formations
AssigneeSchlumberger Technology Corporation
InventorsSyed Afaq Ali, Arthur Milne, Emilio Jose Miquilena, Yenny Christanti
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Abstract
A water-free slurry may include a non-aqueous carrier fluid; a suspension agent including a mineral clay mixture; a crosslinking agent; and a hydratable polymer. A method of treating a subterranean formation may include injecting a water-free slurry into a wellbore penetrating the subterranean formation, the water-free slurry including: a non-aqueous carrier fluid; a suspension agent comprising a mineral clay mixture; a crosslinking agent; and a hydratable polymer.
Claims8
A method for controlling water permeability of a subterranean formation, comprising:
- preparing a water-free slurry comprising:
- a carrier fluid consisting of a mutual solvent;
- a suspension agent comprising a mineral clay mixture that has been treated with an alkyl quaternary ammonium compound;
- a hydratable polymer in the form of microbeads;
- a crosslinking agent for the hydratable polymer;
- and
- injecting the water-free slurry into a target zone in the subterranean formation, wherein the water-free slurry contacts formation water that naturally resides in the subterranean formation and forms a gel.
4 more elements
Dependencies are inferred from the claim text.