Diluent for solids-control fluid in a wellbore

Patent metadata

Field	Value
Publication number	US-11807809-B2
Application number	US-202117556656-A
Country	US
Kind code	B2
Filing date	Dec 20, 2021
Priority date	Dec 20, 2021
Publication date	Nov 7, 2023
Grant date	Nov 7, 2023

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 mutual solvent and an ethylene glycol. 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 solids-control fluid comprising:
a diluent comprising:
a mutual solvent, and
an ethylene glycol; and

a curable resin dispersed within the diluent for controlling flow of solids in a subterranean formation, wherein the solids-control fluid having a first ratio of the diluent to the curable resin is usable to control flow of a first type of solid in the subterranean formation, and wherein the solids-control fluid having a second ratio of the diluent to the curable resin is usable to control flow of a second type of solid in the subterranean formation.

2. The solids-control fluid of claim 1 , wherein the curable resin includes a furan-based curable resin, wherein the curable resin is activatable by a catalytic agent, and wherein the diluent is removable from the solids-control fluid subsequent to activating the curable resin via the catalytic agent.

3. The solids-control fluid of claim 1 , wherein the first type of solid comprises sand, and wherein the second type of solid comprises fines.

4. The solids-control fluid of claim 1 , wherein the first ratio of the diluent to the curable resin is about 1:1, and wherein the second ratio of the diluent to the curable resin is about 3:1.

5. The solids-control fluid of claim 1 , wherein at least one component of the diluent is soluble in an aqueous solution, and wherein a flashpoint of the diluent is greater than or about 110° F.

6. The solids-control fluid of claim 1 , further comprising a tackifying agent, wherein the curable resin is dispersed within the diluent for controlling flow of sand in the subterranean formation, and wherein the tackifying agent is dispersed within the diluent for controlling flow of fines in the subterranean formation.

7. The solids-control fluid of claim 1 , further comprising:
a coupling agent for increasing an adherence of the curable resin to the solids in the subterranean formation; and
a wetting agent for increasing a spread and a penetration of the curable resin in the subterranean formation.

8. A solids-control fluid comprising:
a diluent comprising:
a mutual solvent, and
an ethylene glycol; and

a tackifying agent dispersed within the diluent for controlling flow of solids in a subterranean formation, wherein the solids-control fluid having a first ratio of the diluent to a curable resin is usable to control flow of a first type of solid in the subterranean formation, and wherein the solids-control fluid having a second ratio of the diluent to the curable resin is usable to control flow of a second type of solid in the subterranean formation.

9. The solids-control fluid of claim 8 , wherein at least one component of the diluent is soluble in an aqueous solution, and wherein a flashpoint of the diluent is greater than or about 110° F.

10. The solids-control fluid of claim 8 , wherein the diluent is removable from the solids-control fluid subsequent to injecting the solids-control fluid into the subterranean formation, and wherein the tackifying agent is retainable in the subterranean formation subsequent to removing the diluent from the subterranean formation.

Assignees

• Halliburton Energy Services Inc

Inventors

• Nguyen Philip D
• George Shoy
• Sanders Michael Wayne
• Chano Josselyne
• Mukherjee Sudarshana

Classifications

• C09K8/5755 Primary

  obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds · CPC title

• C09K8/501

  using spacer compositions · CPC title

• C09K8/5086 Primary

  obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds · CPC title

• E21B33/138

  Plastering the borehole wall; Injecting into the formation · CPC title

• C09K8/514

  of natural origin, e.g. polysaccharides, cellulose (C09K8/512 takes precedence) · CPC title