Proppant materials and methods of tailoring proppant material surface wettability

Patent metadata

Field	Value
Publication number	US-9879515-B2
Application number	US-201213627907-A
Country	US
Kind code	B2
Filing date	Sep 26, 2012
Priority date	Sep 30, 2011
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

Proppant materials, and methods for making proppant materials, are provided. In one embodiment, the proppant material comprises a substrate material, a polymeric material disposed on the substrate material and a surface wettability modifier disposed on the polymeric material. Methods of making and using the proppant materials are also disclosed.

First claim

What is claimed is:

1. A proppant material, comprising:
a substrate material;
a polymeric material layer disposed on the substrate material; and
a surface wettability modifier layer disposed on the polymeric material, wherein the surface wettability modifier is selected from the group consisting of a siloxane copolymer, an acrylate copolymer, acrylate materials, and combinations thereof, and wherein the polymeric material is a thermosetting material selected from the group consisting of a phenol-formaldehyde resin, a fluorine free and silicon free epoxy resin, a terpolymer of phenol-furfuryl alcohol-formaldehyde, a polymerized furan, a polyurethane resin, a polymerized urea-aldehyde, a polymerized melamine-aldehyde, a polyester, a polyalkyd, a polymerized phenol-aldehyde, and combinations thereof.

2. The proppant material of claim 1 , wherein the substrate material is a material selected from the group consisting of inorganic substrates, organic substrates, composite substrates, and combinations thereof.

3. The proppant material of claim 1 , wherein the phenol-formaldehyde resin is selected from the group consisting of a fluorine free and silicon free epoxy-modified novolac phenol-formaldehyde resin, a resole phenol-formaldehyde resins, a modified resole phenol-formaldehyde resin, and combinations thereof.

4. The proppant material of claim 1 , wherein the polymeric material is disposed in one or more layers, and each layer is a continuous or non-continuous layer.

5. The proppant material of claim 1 , wherein the siloxane copolymer and/or the acrylate copolymer is selected from the group consisting of polyalkyleneoxidimethylsiloxane copolymer, siloxane polyalkyleneoxide copolymer, fluoroalkylmethacrylate copolymers, fluoroalkylacrylate copolymers, heptadecafluorodecyltrimethoxysilane polyalkylenedimethylsiloxane copolymer, acryloxy terminated dimethylsiloxane-ethyleneoxide block copolymers, (methacryloxypropy)methylsiloxane-dimethylsiloxane copolymers, (acryloxypropyl)methylsiloxane-dimethylsiloxane copolymers, and combinations thereof.

6. The proppant material of claim 1 , wherein the surface wettability modifier is a material selected from the group consisting of polyalkyleneoxidimethylsiloxane copolymer, siloxane polyalkyleneoxide copolymer, 2-hydroxy ethyl methacrylate (HEMA), and combinations thereof.

7. The proppant material of claim 1 , wherein the proppant material has a particle size range of about 10 mesh to about 200 mesh.

8. The proppant material of claim 1 , wherein the proppant material has a water contact angle from about 59° to about 120° and a surface energy from about 20 mJ/m 2 to about 50 mJ/m 2 .

9. The proppant material of claim 1 , wherein the acrylate material is selected from the group consisting of fluoroalkylmethacrylate copolymers, fluoroalkylacrylate copolymers, polyester acrylates, epoxy modified acrylates, urethane acrylates oligomers, and combinations thereof.

10. A method for treating a subterranean formation, comprising:
injecting a fracturing fluid into the subterranean formation, wherein the fracturing fluid comprises a proppant material selected from the group consisting of:
a first proppant material comprising a first substrate material, a first polymeric material layer disposed on the substrate material, and a surface wettability modifier layer disposed on the polymeric material;
a second proppant material comprising a second substrate material and a second polymeric material layer disposed on the substrate material; and
a third proppant material comprising a composite substrate having a third polymeric material layer and a filler material dispersed throughout the third polymeric material layer, wherein the surface wettability modifier or the first, second, or third polymeric material provides the proppant material with a water contact angle from about 59° to about 120° and a surface energy from about 20 mJ/m 2 to about 50 mJ/m 2 and the surface wettability modifier is a material selected from the consisting of a siloxane copolymer, an acrylate copolymer, acrylate materials, and combinations thereof, and wherein each of the first, second, or third polymeric material comprise a thermosetting material selected from the group consisting of a phenol-formaldehyde resin, a fluorine free and silicon free epoxy resin, a terpolymer of phenol-furfuryl alcohol-formaldehyde, a polymerized furan, a polyurethane resin, a polymerized urea-aldehyde, a polymerized melamine-aldehyde, a polyester, a polyalkyd, a polymerized phenol-aldehyde, and combinations thereof.

11. The method of claim 10 , wherein the siloxane copolymer and/or the acrylate copolymer is selected from the group consisting of polyalkyleneoxidimethylsiloxane copolymer, siloxane polyalkyleneoxide copolymer, fluoroalkylmethacrylate copolymers, fluoroalkylacrylate copolymers, heptadecafluorodecyltrimethoxysilane polyalkylenedimethylsiloxane copolymer, acryloxy terminated dimethylsiloxane-ethyleneoxide block copolymers, (methacryloxypropy)methylsiloxane-dimethylsiloxane copolymers, (acryloxypropyl)methylsiloxane-dimethylsiloxane copolymers, and combinations thereof.

12. The method of claim 10 , wherein the substrate material is a material selected from the group consisting of inorganic substrates, organic substrates, composite substrates, and combinations thereof.

13. The method of claim 10 , wherein the phenol-formaldehyde resin is selected from the group consisting of a fluorine free and silicon free epoxy-modified novolac phenol-formaldehyde resin, and combinations thereof.

14. The method of claim 10 , wherein each of the first, second, or third polymeric material is disposed in one or more layers, and each layer is a continuous or non-continuous layer.

15. The method of claim 10 , wherein the surface wettability modifier is a material selected from the group consisting of polyalkyleneoxidimethylsiloxane copolymer, siloxane polyalkyleneoxide copolymer, 2-hydroxy ethyl methacrylate (HEMA), and combinations thereof.

16. The method of claim 10 , wherein the acrylate material is selected from the group consisting of fluoroalkylmethacrylate copolymers, fluoroalkylacrylate copolymers, polyester acrylates, epoxy modified acrylates, urethane acrylates oligomers, and combinations thereof.

Assignees

• Momentive Specialty Chem Inc
• Hexion Inc

Inventors

• Green John William
• Terracina John Mario
• Borges Jerry Francis
• Spillars Scott Edward
• Mah Samantha Huixian

Classifications

• E21B43/267 Primary

  reinforcing fractures by propping · CPC title

• C09K8/805 Primary

  Coated proppants · CPC title