Methods and compositions for stabilizing unconsolidated subterranean formations
AssigneeHalliburton Energy Services, Inc.
InventorsPhilip D. Nguyen, Johnny A. Barton, O. Marlene Isenberg
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Abstract
Methods of stabilizing subterranean formations and methods of reducing the production of particulates from subterranean formations are provided, which are useful in conjunction with subterranean formations surrounding wellbores and fractures. The methods comprise the steps of applying to a subterranean formation a combination aqueous liquid and surfactant preflush solution, an integrated consolidation fluid and an afterflush fluid and then waiting a chosen period of time.
Claims66
A method of stabilizing a subterranean formation comprising the steps of:
- applying a preflush solution comprising an aqueous liquid and a surfactant to the subterranean formation;
- applying an integrated consolidation fluid to the subterranean formation wherein the integrated consolidation fluid comprises at least one of the following:
- (a) a two-component epoxy based consolidation fluid comprising
- (i) a hardenable resin component and
- (ii) a hardening agent component;
- (b) a one-component furan-based consolidation fluid;
- (c) a one-component phenolic-based consolidation fluid;
- (d) a one-component high temperature epoxy-based consolidation fluid;
- applying an afterflush fluid to the subterranean formation;
- and,
- waiting a chosen period of time.
A method of reducing the production of particulates from a subterranean formation comprising the steps of:
- applying a preflush solution comprising an aqueous liquid and a surfactant to the subterranean formation;
- applying an integrated consolidation fluid to the subterranean formation, wherein the integrated consolidation fluid comprises at least one of the following:
- (a) a two-component epoxy based consolidation fluid comprising
- (i) a hardenable resin component and
- (ii) a hardening agent component;
- (b) a one-component furan-based consolidation fluid;
- (c) a one-component phenolic-based consolidation fluid;
- (d) a one-component high temperature epoxy-based consolidation fluid;
- applying an afterflush fluid to the subterranean formation
- waiting a chosen period of time.
Dependencies are inferred from the claim text.