Diluent with glycol ether for solids-control fluid in a wellbore

Patent metadata

Field	Value
Publication number	US-12098322-B2
Application number	US-202318158398-A
Country	US
Kind code	B2
Filing date	Jan 23, 2023
Priority date	Jan 23, 2023
Publication date	Sep 24, 2024
Grant date	Sep 24, 2024

Abstract

A solids-control fluid for controlling flow of solids in a subterranean formation is disclosed herein. The solids-control fluid can include a diluent and a curable resin. The diluent can include a glycol ether. The curable resin can be dispersed within the diluent for controlling flow of solids in the subterranean formation.

First claim

What is claimed is:

1. A method comprising:
isolating an interval of a wellbore that is formed in a subterranean formation;
injecting a solids-control fluid into the interval of the wellbore, the solids-control fluid comprising a solids-control agent and a diluent that comprises monoethylene glycol and polyalkylene glycol monobutyl ether; and
injecting an aqueous post-flush fluid that comprises a solids-control fluid activator into the interval of the wellbore for causing the solids-control fluid to consolidate in the subterranean formation.

2. The method of claim 1 , wherein the solids-control agent comprises a curable resin, wherein the curable resin comprises a furfuryl-alcohol based curable resin, and wherein injecting the aqueous post-flush fluid comprises injecting the solids-control fluid activator for activating the curable resin.

3. The method of claim 1 , wherein the solids-control fluid further comprises a docking agent for adhering the solids-control agent to the subterranean formation, wherein the docking agent comprises at least an alkylamino silane material.

4. The method of claim 1 , wherein the solids-control fluid activator is a catalytic agent, and wherein injecting the aqueous post-flush fluid into the interval of the wellbore comprises exposing the solids-control agent to the catalytic agent.

5. The method of claim 1 , wherein, at a particular temperature and at a particular salinity, the polyalkylene glycol monobutyl ether has a cloud point, wherein the polyalkylene glycol monobutyl ether, at the cloud point, precipitates onto the subterranean formation for causing the solids-control agent to adhere to a surface of a set of particulates of the subterranean formation and for causing consolidation of particulates included in the set particulates.

6. The method of claim 1 , wherein introducing the aqueous post-flush fluid that comprises the solids-control fluid activator into the interval of the wellbore further comprises extracting the diluent from the subterranean formation while retaining the solids-control agent in the subterranean formation.

7. The method of claim 1 , wherein the subterranean formation comprises a clay content of at least five percent, and wherein the method further comprises injecting an aqueous pre-flush fluid into the interval of the wellbore for preparing the interval of the wellbore for the solids-control fluid, wherein the aqueous pre-flush fluid comprises a brine.

8. The method of claim 1 , wherein the solids-control fluid has a first ratio of the diluent to the solids-control agent to control flowback of sand from the subterranean formation, wherein the first ratio of the diluent to the solids-control agent is about 1:1, and wherein the solids-control fluid has a second ratio of the polyalkylene glycol monobutyl ether to the monoethylene glycol, wherein the second ratio of the polyalkylene glycol monobutyl ether to the monoethylene glycol is about 7:3.

9. A solids-control fluid comprising:
a solids-control agent;
a diluent comprising monoethylene glycol and polyalkylene glycol monobutyl ether; and
a curable resin dispersed within the diluent for controlling flow of solids in a subterranean formation, wherein a spacer fluid and an aqueous post-flush fluid are injectable into at least a portion of a wellbore for causing the solids-control fluid to consolidate in the subterranean formation.

10. The solids-control fluid of claim 9 , wherein the curable resin comprises a furfuryl-alcohol based curable resin, and wherein the diluent is removable from the solids-control fluid subsequent to activating the curable resin via a catalytic agent.

11. The solids-control fluid of claim 9 , wherein the solids-control fluid has a first ratio of the diluent to the curable resin to control flowback of sand from the subterranean formation, wherein the first ratio of the diluent to the curable resin is about 1:1.

12. The solids-control fluid of claim 9 , wherein the solids-control fluid has a ratio of the polyalkylene glycol monobutyl ether to the monoethylene glycol, wherein the ratio of the polyalkylene glycol monobutyl ether to the monoethylene glycol is about 7:3.

13. The solids-control fluid of claim 12 , wherein, at a particular temperature and at a particular salinity, the polyalkylene glycol monobutyl ether has a cloud point, wherein the polyalkylene glycol monobutyl ether, at the cloud point, is precipitable onto a subterranean formation associated with a wellbore in which the solids-control fluid was introduced.

14. The solids-control fluid of claim 9 , wherein the solids-control fluid further comprises a docking agent for increasing adhesion of the curable resin to the subterranean formation.

15. A solids-control fluid comprising:
a solids-control agent;
a diluent comprising monoethylene glycol and polyalkylene glycol monobutyl ether; and
a furfuryl-alcohol resin dispersed within the diluent for controlling flowback of solids from a subterranean formation, wherein a spacer fluid and an aqueous post-flush fluid are injectable into at least a portion of a wellbore for causing the solids-control fluid to consolidate in the subterranean formation.

16. The solids-control fluid of claim 15 , wherein the solids-control fluid has a first ratio of the diluent to the furfuryl-alcohol resin to control flowback of sand from the subterranean formation, wherein the first ratio of the diluent to the furfuryl-alcohol resin is about 1:1.

17. The solids-control fluid of claim 15 , wherein the solids-control fluid has a ratio of the polyalkylene glycol monobutyl ether to the monoethylene glycol, wherein the ratio of the polyalkylene glycol monobutyl ether to the monoethylene glycol is about 7:3.

Assignees

• Halliburton Energy Services Inc

Inventors

• Recio Antonio
• Deville Jay
• Sanders Michael Wayne
• Nguyen Philip D

Classifications

• E21B43/20

  Displacing by water · CPC title

• E21B43/27

  by use of eroding chemicals, e.g. acids · CPC title

• C09K8/508

  macromolecular compounds {(C09K8/512 takes precedence)} · CPC title

• C09K8/506

  containing organic compounds · CPC title

• C09K8/5751

  Macromolecular compounds (C09K8/5756 takes precedence) · CPC title