Coating well proppant with hardenable resin-fiber composites
AssigneeHalliburton Energy Services, Inc.
InventorsBrahmadeo T. Dewprashad, Jimmie D. Weaver, Steven F. Wilson, Bhadra D. Desai
Life of this patent
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Abstract
Methods of continuously forming and suspending hardenable resin-fibrous material composite coated proppant in a carrier liquid are provided. The methods basically comprise dissolving a hardenable resin composition and a fibrous material in a solvent which is insoluble in the carrier liquid, pumping the carrier liquid, combining uncoated proppant with the carrier liquid as the carrier liquid is pumped and combining the hardenable resin composition-fibrous material solution with the carrier liquid as the carrier liquid is pumped whereby the proppant is coated with a hardenable resin composition-fibrous material composite.
Claims25
A method of continuously forming and suspending hardenable resin composition-fibrous material composite coated particulate solids in a carrier liquid comprising the steps of:
- (a) dissolving a hardenable resin composition and a fibrous material both of which are insoluble in said carrier liquid in a solvent which is soluble in said carrier liquid to thereby form a hardenable resin composition-fibrous material solution;
- (b) pumping said carrier liquid;
- (c) combining uncoated particulate solids with at least a portion of said carrier liquid as said carrier liquid is pumped;
- and
- (d) combining said hardenable resin composition-fibrous material solution with said carrier liquid as said carrier liquid is pumped whereby said carrier liquid extracts said solvent from said hardenable resin composition-fibrous material solution and said particulate solids are coated with the remaining hardenable resin composition-fibrous material composite.
A method of continuously forming and suspending hardenable resin-fibrous material composite coated particulate solids in an aqueous carrier liquid comprising the steps of:
- (a) dissolving a hardenable polyepoxy resin composition and a cellulose acetate fibrous material in a methyl ethyl ketone solvent which is soluble in said carrier liquid to thereby form a hardenable resin composition-fibrous material solution;
- (b) pumping said carrier liquid;
- (c) combining uncoated particulate solids with at least a portion of said carrier liquid as said carrier liquid is pumped;
- and
- (d) combining said hardenable resin composition-fibrous material solution with said carrier liquid as said carrier liquid is pumped whereby said carrier liquid extracts said methyl ethyl ketone solvent from said hardenable resin composition-fibrous material solution and said particulate solids are coated with the remaining hardenable polyepoxide resin composition and cellulose acetate fibrous material composite.
A method of continuously forming and suspending hardenable resin-fiber composite coated proppant in an aqueous fracturing fluid and transporting said coated proppant into at least one fracture in a subterranean zone penetrated by a well bore whereby said coated proppant forms a hard permeable proppant pack in said fracture comprising the steps of:
- (a) dissolving a hardenable resin composition and a fibrous material both of which are insoluble in said fracturing fluid in a solvent which is soluble in said fracturing fluid to thereby form a hardenable resin composition-fibrous material solution;
- (b) pumping said fracturing fluid into said subterranean zone and into said fracture by way of said well bore;
- (c) combining uncoated proppant with at least a portion of said fracturing liquid as said fracturing fluid is pumped;
- and
- (d) combining said hardenable resin composition-fibrous material solution with said fracturing fluid as said fracturing fluid is pumped whereby said fracturing fluid extracts said solvent from said hardenable resin composition-fibrous material solution and said proppant is coated with the remaining hardenable resin composition and fibrous material composite;
- (e) causing the resulting hardenable resin composition-fibrous material composite coated proppant to be deposited in said fracture;
- and
- (f) allowing said coated proppant to harden into a hard permeable pack in said fracture.
Dependencies are inferred from the claim text.