US2013292116A1PendingUtilityA1
Methods for Controlling Formation Fines Migration
Est. expiryMay 2, 2032(~5.8 yrs left)· nominal 20-yr term from priority
C09K 8/703C09K 8/76C09K 8/516C09K 8/5751C09K 8/68C09K 8/508C09K 8/035
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Claims
Abstract
Generally, a consolidating treatment fluid includes at least an aqueous base fluid and an ultra-dilute water-based curable resin. The consolidating treatment fluid may be used in a plurality of subterranean operations to consolidate the unconsolidated particles within the subterranean formation.
Claims
exact text as granted — not AI-modifiedThe invention claimed is:
1 . A method comprising:
providing a consolidating treatment fluid that comprises an aqueous base fluid and a water-based curable resin at about 0.01% to about 3% by weight of the aqueous base fluid; introducing the consolidating treatment fluid into at least a portion of a subterranean formation comprising unconsolidated formation fines; and allowing the resin to cure so as to consolidate the unconsolidated formation fines.
2 . The method of claim 1 , wherein the water-based curable resin comprises at least one selected from the group consisting of an epoxy-based resin, a novolak resin, a polyepoxide resin, a phenol-aldehyde resin, a urea-aldehyde resin, a urethane resin, a phenolic resin, a furan resin, a furan/furfuryl alcohol resin, a phenolic/latex resin, a phenol formaldehyde resin, a polyester resin and hybrids and copolymers thereof, a polyurethane resin and hybrids and copolymers thereof, an acrylate resin, and any combination thereof.
3 . The method of claim 1 , wherein the water-based curable resin comprises a two-component epoxy-based resin at about 0.01% to about 3% by weight of the aqueous base fluid, an amine-based curing agent at about 0.01% to about 3% by weight of the aqueous base fluid, and a silane coupling agent at about 0.01% to about 2% by weight of the aqueous base fluid.
4 . The method of claim 1 , wherein the consolidating treatment fluid is foamed.
5 . The method of claim 1 , wherein the consolidating treatment fluid further comprises a clay stabilizing agent.
6 . The method of claim 1 , wherein the consolidating treatment fluid further comprises at least one additive selected from the group consisting of a salt, a weighting agent, an inert solid, a fluid loss control agent, an emulsifier, a dispersion aid, a corrosion inhibitor, an emulsion thinner, an emulsion thickener, a viscosifying agent, a gelling agent, a surfactant, a particulate, a proppant, a gravel particulate, a lost circulation material, a pH control additive, a breaker, a biocide, a crosslinker, a stabilizer, a chelating agent, a scale inhibitor, a gas hydrate inhibitor, a mutual solvent, an oxidizer, a reducer, a friction reducer, a clay stabilizing agent, or any combination thereof.
7 . The method of claim 1 , wherein introducing the consolidating treatment fluid is at matrix flow rate.
8 . The method of claim 1 further comprising:
introducing a preflush treatment fluid prior to introduction of the consolidating treatment fluid, wherein the preflush treatment fluid comprises a second aqueous base fluid.
9 . The method of claim 1 further comprising:
producing hydrocarbons is from a production wellbore; and
wherein introducing the consolidating treatment fluid is through an injection wellbore.
10 . A method comprising, in order:
introducing a preflush treatment fluid into at least a portion of a subterranean formation comprising unconsolidated formation fines, the preflush treatment fluid comprising a first aqueous base fluid; introducing a consolidating treatment fluid in the portion of the subterranean formation, the treatment fluid comprising a second aqueous base fluid and a water-based curable resin at about 0.01% to about 3% by weight of the second aqueous base fluid; allowing the resin to cure so as to consolidate the unconsolidated formation fines; and producing hydrocarbon fluids from the portion of the subterranean formation.
11 . The method of claim 10 , wherein the water-based curable resin comprises at least one selected from the group consisting of an epoxy-based resin, a novolak resin, a polyepoxide resin, a phenol-aldehyde resin, a urea-aldehyde resin, a urethane resin, a phenolic resin, a furan resin, a furan/furfuryl alcohol resin, a phenolic/latex resin, a phenol formaldehyde resin, a polyester resin and hybrids and copolymers thereof, a polyurethane resin and hybrids and copolymers thereof, an acrylate resin, and any combination thereof.
12 . The method of claim 10 , wherein the water-based curable resin comprises a two-component epoxy-based resin at about 0.01% to about 3% by weight of the second aqueous base fluid, an amine-based curing agent at about 0.01% to about 3% by weight of the second aqueous base fluid, and a silane coupling agent at about 0.01% to about 2% by weight of the second aqueous base fluid.
13 . The method of claim 10 , wherein the consolidating treatment fluid is foamed.
14 . The method of claim 10 , wherein the consolidating treatment fluid further comprises a clay stabilizing agent.
15 . The method of claim 10 , wherein introducing the consolidating treatment fluid is at matrix flow rate.
16 . A method comprising, in order:
introducing a consolidating treatment fluid in the portion of the subterranean formation, the treatment fluid comprising an aqueous base fluid, a two-component epoxy-based resin at about 0.01% to about 3% by weight of the aqueous base fluid, an amine-based curing agent at about 0.01% to about 3% by weight of the aqueous base fluid, and a silane coupling agent at about 0.01% to about 2% by weight of the aqueous base fluid; allowing the resin to cure so as to consolidate the unconsolidated formation fines; and producing hydrocarbon fluids from the portion of the subterranean formation.
17 . The method of claim 16 , wherein the consolidating treatment fluid is foamed.
18 . The method of claim 16 , wherein the consolidating treatment fluid further comprises a clay stabilizing agent.
19 . The method of claim 16 , wherein introducing the consolidating treatment fluid is at matrix flow rate.
20 . The method of claim 16 , wherein introducing the consolidating treatment fluid is through an injection wellbore and producing hydrocarbons is from a production wellbore.Join the waitlist — get patent alerts
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