Method for stimulation treatment using polymer-surfactant combination

Patent metadata

Field	Value
Publication number	US-2018237686-A1
Application number	US-201515754251-A
Country	US
Kind code	A1
Filing date	Aug 31, 2015
Priority date	Aug 31, 2015
Publication date	Aug 23, 2018
Grant date	—

Abstract

A method of treating in a subterranean formation including combining an aqueous base fluid and an anionic surfactant to form a first solution; hydrating a cationic polymer with the first solution to form a viscous fluid; combining the viscous fluid with a proppant thereby forming a treatment fluid; and introducing the treatment fluid into the subterranean formation. A method of making a well treatment fluid including combining an aqueous base fluid and an anionic surfactant to form a first solution; hydrating a cationic polymer with the first solution to form a viscous fluid; and combining the viscous fluid with a proppant thereby forming a treatment fluid.

First claim

What is claimed is:

1 . A method of treating in a subterranean formation comprising:
combining an aqueous base fluid and an anionic surfactant to form a first solution; hydrating a cationic polymer with the first solution to form a viscous fluid; combining the viscous fluid with a proppant thereby forming a treatment fluid; and introducing the treatment fluid into the subterranean formation.

2 . The method of claim 1 , wherein the aqueous base fluid comprises at least one fluid selected from water, brine, slick water, and combinations thereof.

3 . The method of claim 1 , wherein the anionic surfactant comprises at least one selected from the group consisting of alpha olefin sulfonate, alkylether sulfates, alkyl phosphonates, alkane sulfonates, fatty acid salts, and arylsulfonic acid salts, and mixtures thereof.

4 . The method of claim 3 , wherein the anionic surfactant comprises diethylene glycol, ethylene glycol monobutyl ether, α-olefin sulfonate, and water.

5 . The method of claim 1 , wherein the cationic polymer is partially hydrated before it is combined with the first solution.

6 . The method of claim 1 , wherein the proppants are at least one selected from the group consisting of sand; bauxite; ceramic materials; glass materials; polymer materials; polytetrafluoroethylene materials; nut shell pieces; cured resinous particulates comprising nut shell pieces; seed shell pieces; cured resinous particulates comprising seed shell pieces; fruit pit pieces; cured resinous particulates comprising fruit pit pieces; wood; composite particulates; and any combination thereof.

7 . The method of claim 1 , wherein the cationic polymer comprises at least one selected from the group consisting of cationic polyacrylamide copolymers, cationic guar, cationic cellulose derivatives, cationic polysaccharide derivatives, choline methacrylate, alkyl substituted nitrogen compounds, aryl substituted nitrogen compounds, alkyl-aryl substituted nitrogen compounds, and mixtures thereof.

8 . The method of claim 7 , wherein the cationic polymer is cationic hydroxy ethyl cellulose.

9 . The method of claim 1 , wherein the subterranean formation comprises at least one fracture and wherein the introducing further comprises placing at least a portion of the treatment fluid into the at least one fracture.

10 . The method of claim 1 , further comprising adding a consolidating agent to the treatment fluid at a time of at least one of before the introducing of the treatment fluid into the subterranean formation, during the introducing of the treatment fluid, after the introducing the treatment fluid, and combinations thereof.

11 . The method of claim 1 , wherein a combining, hydrating, and introducing utilize at least one of a pump, a mixer, and combinations thereof.

12 . A method of making a well treatment fluid comprising:
combining an aqueous base fluid and an anionic surfactant to form a first solution; hydrating a cationic polymer with the first solution to form a viscous fluid; and combining the viscous fluid with a proppant thereby forming a treatment fluid.

13 . The method of claim 12 , wherein the aqueous base fluid comprises at least one fluid selected from water, brine, slick water, and combinations thereof.

14 . The method of claim 12 , wherein the anionic surfactant comprises at least one selected from the group consisting of alpha olefin sulfonate, alkylether sulfates, alkyl phosphonates, alkane sulfonates, fatty acid salts, and arylsulfonic acid salts, and mixtures thereof.

15 . The method of claim 14 , wherein the anionic surfactant comprises diethylene glycol, ethylene glycol monobutyl ether, α-olefin sulfonate, and water.

16 . The method of claim 12 , wherein the cationic polymer is partially hydrated before it is combined with the first solution.

17 . The method of claim 12 , wherein the proppants are at least one selected from the group consisting of sand; bauxite; ceramic materials; glass materials; polymer materials; polytetrafluoroethylene materials; nut shell pieces; cured resinous particulates comprising nut shell pieces; seed shell pieces; cured resinous particulates comprising seed shell pieces; fruit pit pieces; cured resinous particulates comprising fruit pit pieces; wood; composite particulates; and any combination thereof.

18 . The method of claim 12 , wherein the cationic polymer comprises at least one selected from the group consisting of cationic polyacrylamide copolymers, cationic guar, cationic cellulose derivatives, cationic polysaccharide derivatives, choline methacrylate, alkyl substituted nitrogen compounds, aryl substituted nitrogen compounds, alkyl-aryl substituted nitrogen compounds, and mixtures thereof.

19 . The method of claim 18 , wherein the cationic polymer is cationic hydroxy ethyl cellulose.

20 . A method of forming one or more fractures in a subterranean formation comprising:
combining an aqueous base fluid and an anionic surfactant to form a first solution; hydrating a cationic polymer with the first solution to form a viscous fluid; combining the viscous fluid with a proppant thereby forming a treatment fluid; and introducing the treatment fluid into the subterranean formation under conditions effective to create at least one fracture therein.

Assignees

• Halliburton Energy Services Inc

Inventors

• Schnoor Eli Allen
• Singh Dipti
• Chopade Prashant D
• Alwattari Ali

Classifications

• C09K2208/30

  Viscoelastic surfactants [VES] · CPC title

• C09K8/68 Primary

  containing organic compounds · CPC title

• C09K8/86

  containing organic compounds · CPC title

• C09K8/88

  macromolecular compounds · CPC title

• C09K2208/04

  Hulls, shells or bark containing well drilling or treatment fluids · CPC title