Crush-resistant proppant particulates for use in subterranean formation operations

Patent metadata

Field	Value
Publication number	US-10017689-B2
Application number	US-201415312899-A
Country	US
Kind code	B2
Filing date	Aug 25, 2014
Priority date	Aug 25, 2014
Publication date	Jul 10, 2018
Grant date	Jul 10, 2018

Abstract

Crush-resistant proppant particulates comprising proppant particulates at least partially coated with a polymeric material and inorganic particles, wherein the polymeric material comprises an organic polymeric material, or an inorganic polymeric material, or a combination thereof, wherein the organic polymeric material is selected from the group consisting of an organosilane, an organophosphonate, a polycarboxylic compound, a triazine, a resin comprising a silane coupling agent, and any combination thereof, wherein the inorganic polymeric material is aluminosilicate compound, and wherein the inorganic particle is between about 1 nm to about 10 μm in diameter and selected from the group consisting of alumina, boron carbide, boron nitride, silicate, glass, silicon carbide, silica, quartz, copper oxide, a microfiber, a nanofiber, core-shell, graphene, sodium silicate, sodium metasilicate, and any combination thereof.

First claim

The invention claimed is:

1. A method comprising:
preparing a treatment fluid comprising proppant particulates at least partially coated with a polymeric material and inorganic particles,
wherein the polymeric material comprises an organic polymeric material, wherein the organic polymeric material comprises an organosilane selected from the group consisting of tetraethyl orthosilicate, gamma-methacryloxypropyltrimethoxysilane, 1,2-bis-(triethoxysilyl) ethane, hexadecyltrimethoxysilane, 3-glycidoxypropyltrimethoxysilane, dichloro(diphenyl)silane, dichlorodimethylsilane, and any combination thereof, and
wherein the inorganic particles are between about 1 nm to about 10 μm in diameter and selected from the group consisting of alumina, boron carbide, boron nitride, silicate, glass, silicon carbide, silica, quartz, copper oxide, a microfiber, a nanofiber, graphene, sodium silicate, sodium metasilicate, and any combination thereof;

introducing the treatment fluid into a subterranean formation having at least one fracture,
wherein the polymeric material and the inorganic particles are at least partially coated onto the proppant particulates on-the-fly as the proppant particulates, the polymeric material, the inorganic particles, and the treatment fluid are individually introduced into the subterranean formation; and

placing coated proppant particulates into the at least one fracture to form a proppant pack,
wherein the coated proppant particulates withstand closure pressures of between about 6,000 psi and 16,000 psi.

2. The method of claim 1 , wherein the treatment fluid includes an oil-based fluid, aqueous-based fluid, aqueous-miscible fluid, water-in-oil emulsion, or an oil-in-water emulsion.

3. The method of claim 1 , wherein at least a portion of the organic polymeric material is functionalized with a functional group selected from the group consisting of a Si—O—R group where R is an organic compound, a Si—Cl group, a silanol (Si—O—H) group, a carboxyl (COOH) group, an amine (NH 2 ) group, a phosphate group, a phosphonate group, a sulfonate group, a sulfate group, an aldehyde group, a ketone group, any compound comprising one of the foregoing groups, and any combination thereof.

4. The method of claim 1 , wherein the proppant particulate coating is configured such that there is a first layer of the organic polymeric material followed by a second layer of the inorganic particles.

5. The method of claim 1 , wherein the proppant particulate coating is configured such that the inorganic particles are dispersed within a network of the organic polymeric material.

6. The method of claim 1 , wherein prior to coating the proppant particulates, the proppant particulates are exposed to an oxidizing agent.

7. The method of claim 1 , wherein the proppant particulates are composed of a material selected from the group consisting of silica, alumina, fumed carbon, carbon black, graphite, mica, titanium dioxide, meta-silicate, calcium silicate, kaolin, talc, zirconia, boron, fly ash, and any combination thereof.

8. A system comprising:
a wellhead with a tubular extending therefrom and into a subterranean formation; and
a pump fluidly coupled to the tubular, the tubular comprising a treatment fluid comprising proppant particulates at least partially coated with a polymeric material and inorganic particles, wherein the polymeric material and the inorganic particles are at least partially coated onto the proppant particulates on-the-fly as the proppant particulates, the polymeric material, the inorganic particles, and the treatment fluid are individually introduced into the subterranean formation,
wherein the coated proppant particulates withstand closure pressures of between about 6,000 psi and 16,000 psi,
wherein the polymeric material comprises an organic polymeric material, wherein the organic polymeric material comprises an organosilane selected from the group consisting of tetraethyl orthosilicate, gamma-methacryloxypropyltrimethoxysilane, 1,2-bis-(triethoxysilyl) ethane, hexadecyltrimethoxysilane, 3-glycidoxypropyltrimethoxysilane, dichloro(diphenyl)silane, dichlorodimethylsilane, and any combination thereof, and
wherein the inorganic particles are between about 1 nm and about 10 μm in diameter and selected from the group consisting of alumina, boron carbide, boron nitride, silicate, glass, silicon carbide, silica, quartz, copper oxide, a microfiber, a nanofiber, graphene, sodium silicate, sodium metasilicate, and any combination thereof.

9. The system of claim 8 , wherein the treatment fluid includes an oil-based fluid, aqueous-based fluid, aqueous-miscible fluid, water-in-oil emulsion, or an oil-in-water emulsion.

Assignees

• Halliburton Energy Services Inc

Inventors

• Nguyen Philip D
• Vo Loan K

Classifications

• E21B43/267

  reinforcing fractures by propping · CPC title

• C09K8/805 Primary

  Coated proppants · CPC title

• C09K2208/10

  Nanoparticle-containing well treatment fluids · CPC title

• C09K8/62

  Compositions for forming crevices or fractures · CPC title

• C09K2208/08

  Fiber-containing well treatment fluids · CPC title