Multifunctional brush photopolymerized coated proppant particulates use in subterranean formation operations

Patent metadata

Field	Value
Publication number	US-2018273836-A1
Application number	US-201515758718-A
Country	US
Kind code	A1
Filing date	Oct 22, 2015
Priority date	Oct 22, 2015
Publication date	Sep 27, 2018
Grant date	—

Abstract

Methods including introducing a treatment fluid into a subterranean formation having at least one fracture therein, the treatment fluid comprising an aqueous base fluid and brush photopolymerized coated proppant particulates (bPCPPs), and placing the bPCPPs into the at least one fracture to form a proppant pack therein. The bPCPPs comprise proppant modified with a coupling agent photopolymerized to a derivatized hydrophilic polymer, thereby resulting in a brush polymer structure of the derivatized hydrophilic polymer extending from the proppant.

First claim

What is claimed is:

1 . A method comprising:
introducing a treatment fluid into a subterranean formation having at least one fracture therein, the treatment fluid comprising an aqueous base fluid and brush photopolymerized coated proppant particulates (bPCPPs),
wherein the bPCPPs comprise proppant modified with a coupling agent photopolymerized to a derivatized hydrophilic polymer, thereby resulting in a brush polymer structure of the derivatized hydrophilic polymer extending from the proppant; and
placing the bPCPPs into the at least one fracture to form a proppant pack therein.

2 . The method of claim 1 , wherein the derivatized hydrophilic polymer is selected from the group consisting of a degradable derivatized hydrophilic polymer, a non-degradable derivatized hydrophilic polymer, a swellable derivatized hydrophilic polymer, and any combination thereof.

3 . The method of claim 1 , wherein the derivatized hydrophilic polymer is a degradable derivatized hydrophilic polymer and further comprising degrading the degradable derivatized hydrophilic polymer, thereby forming conductive channels in the proppant pack.

4 . The method of claim 1 , wherein derivatized hydrophilic polymer is selected from the group consisting of a derivatized acrylate, a derivatized polyacrylate, a derivatized urethane, a derivatized polylactide, a derivatized polyvinyl alcohol, a derivatized polylactide acrylate, a derivatized polyester, a derivatized urethane acrylate, a derivatized acrylamide, a derivatized 1,2-diol, a derivatized 1,3-diol, a derivatized urethane acrylate, a waterborne polyurethane hybrid, a derivatized poly(methylamminoethyl methacrylate), a poly(diethylaminoethyl methacrylate), and any combination thereof.

5 . The method of claim 1 , wherein the derivatized hydrophilic polymer comprises at least one allyl group, at least one carboxylate group, and any combination thereof.

6 . The method of claim 1 , wherein the coupling agent is a silane coupling agent.

7 . The method of claim 1 , wherein the coupling agent comprises at least one quaternary amine group.

8 . The method of claim 1 , wherein the treatment fluid further comprises a metal crosslinker.

9 . The method of claim 1 , further comprising a tubular extending into the subterranean formation and a pump coupled to the tubular, wherein the treatment fluid is introduced into the subterranean formation through the tubular.

10 . A method comprising:
introducing a treatment fluid into a subterranean formation having at least one fracture therein, the treatment fluid comprising an aqueous base fluid and brush photopolymerized coated proppant particulates (bPCPPs),
wherein the bPCPPs comprise proppant modified with a coupling agent photopolymerized to a derivatized hydrophilic polymer, thereby resulting in a brush polymer structure of the derivatized hydrophilic polymer extending from the proppant;
placing the bPCPPs into the at least one fracture to form a proppant pack therein; and contacting the bPCPPs with a collapsing agent in the subterranean formation, thereby disturbing the brush polymer structure and causing the derivatized hydrophilic polymer to collapse about the proppant, thus resulting in collapsed PCPPs (cPCPPs),
wherein the cPCPPs have a hydrophobic surface property.

11 . The method of claim 10 , wherein the collapsing agent is selected from the group consisting of a heat source, a pH altering substance, and any combination thereof.

12 . The method of claim 10 , wherein the derivatized hydrophilic polymer is selected from the group consisting of a degradable derivatized hydrophilic polymer, a non-degradable derivatized hydrophilic polymer, a swellable derivatized hydrophilic polymer, and any combination thereof.

13 . The method of claim 10 , wherein the derivatized hydrophilic polymer is a degradable derivatized hydrophilic polymer and further comprising degrading the degradable derivatized hydrophilic polymer, thereby forming conductive channels in the proppant pack.

14 . The method of claim 10 , wherein derivatized hydrophilic polymer is selected from the group consisting of a derivatized acrylate, a derivatized polyacrylate, a derivatized urethane, a derivatized polylactide, a derivatized polyvinyl alcohol, a derivatized polylactide acrylate, a derivatized polyester, a derivatized urethane acrylate, a derivatized acrylamide, a derivatized 1,2-diol, a derivatized 1,3-diol, a derivatized urethane acrylate, a waterborne polyurethane hybrid, a derivatized poly(methylamminoethyl methacrylate), a poly(diethylaminoethyl methacrylate), and any combination thereof.

15 . The method of claim 10 , wherein the derivatized hydrophilic polymer comprises at least one allyl group, at least one carboxylate group, and any combination thereof.

16 . The method of claim 10 , wherein the coupling agent is a silane coupling agent.

17 . The method of claim 10 , wherein the coupling agent comprises at least one quaternary amine group.

18 . The method of claim 10 , wherein the treatment fluid further comprises a metal crosslinker.

19 . The method of claim 10 , further comprising a tubular extending into the subterranean formation and a pump coupled to the tubular, wherein the treatment fluid is introduced into the subterranean formation through the tubular.

20 . A method comprising:
introducing proppant into a proppant auger; introducing a coupling agent into the proppant auger for modifying the proppant therewith; introducing a derivatized hydrophilic polymer into the proppant auger; emitting electromagnetic radiation to optically interact with the modified proppant and the derivatized hydrophilic polymer; photopolymerizing the derivatized hydrophilic monomer to the coupling agent with the electromagnetic radiation, thereby forming brush photopolymerized coated proppant particulates (bPCPPs) having a brush polymer structure such that the derivatized hydrophilic polymer extends from the proppant; combining the bPCPPs with an aqueous base fluid in a blender, thereby forming a treatment fluid; introducing the treatment fluid into a subterranean formation having at least one fracture therein; and placing the bPCPPs into the at least one fracture to form a proppant pack therein.

Assignees

• Halliburton Energy Services Inc

Inventors

• Singh Dipti
• Chopade Prashant D
• Cortez Janette
• Nguyen Philip D
• Dusterhoft Ronald Glen

Classifications

• C09K8/805 Primary

  Coated proppants · CPC title

• E21B43/267

  reinforcing fractures by propping · CPC title

• C09K8/887

  containing cross-linking agents · CPC title

• C09K8/92

  characterised by their form or by the form of their components, e.g. encapsulated material (C09K8/70 takes precedence) · CPC title

• C09K8/70

  characterised by their form or by the form of their components, e.g. foams · CPC title