Surfactant Compositions Comprising Solid Substrates For Subterranean Well Operations

Patent metadata

Field	Value
Publication number	US-2020032129-A1
Application number	US-201916509574-A
Country	US
Kind code	A1
Filing date	Jul 12, 2019
Priority date	Jul 25, 2018
Publication date	Jan 30, 2020
Grant date	—

Abstract

A method of preparing a solid surfactant composite may include: coating a liquid water-wetting surfactant on a solid carrier; and drying the solid carrier to produce the solid surfactant composite. A method may include: introducing a spacer fluid into a wellbore, the spacer fluid comprising a solid surfactant composite; and displacing a fluid in the wellbore using the spacer fluid.

First claim

What is claimed is:

1 . A method of preparing a solid surfactant composite comprising:
coating a liquid water-wetting surfactant on a solid carrier; and drying the solid carrier to produce the solid surfactant composite.

2 . The method of claim 1 wherein the step of coating comprises dry blending or spraying.

3 . The method of claim 1 wherein the step of coating comprises spraying and wherein the method further comprises spraying at least one of a dispersant, a defoamer, or both.

4 . The method of claim 3 wherein the liquid water-wetting surfactant, the dispersant, and the defoamer are individually sprayed on the solid carrier or sprayed as any mixture thereof.

5 . The method of claim 3 further comprising:
mixing the liquid water-wetting surfactant, the dispersant, and the defoamer with a carrier fluid prior to the step of spraying.

6 . The method of claim 1 wherein the liquid water-wetting surfactant comprises at least one surfactant selected from the group consisting of an alcohol ethoxylate, an alcohol ethoxysulfate, an alkyl phenol ethoxylate, a glycol ether, or any combination thereof.

7 . The method of claim 1 wherein the solid carrier comprises calcium silicate.

8 . The method of claim 1 wherein the solid carrier comprises at least one of as fly ash, natural glass, metal silicates, aluminosilicates, alkali silicates, alkali earth silicates, metal carbonates, alkali carbonates, alkali earth carbonates, synthetic glass, biomass ash, diatomaceaous earth, cement kiln dust, lime kiln dust, Portland cement, non-Portland cement, aluminate cement, and combinations thereof.

9 . A method comprising:
introducing a spacer fluid into a wellbore, the spacer fluid comprising a solid surfactant composite; and displacing a fluid in the wellbore using the spacer fluid.

10 . The method of claim 9 wherein the solid surfactant composite comprises:
a liquid water-wetting surfactant disposed on a surface of a solid carrier; and, optionally,
a dispersant, a defoamer, or both disposed on a surface of the solid carrier.

11 . The method of claim 10 wherein the solid surfactant composite is prepared by coating a liquid water-wetting surfactant, and, optionally, the dispersant, the defoamer, or both on the solid carrier and drying the drying the solid carrier to produce the solid surfactant composite.

12 . The method of claim 10 wherein the solid carrier comprises calcium silicate.

13 . The method of claim 10 wherein the solid carrier comprises at least one of as fly ash, natural glass, metal silicates, aluminosilicates, alkali silicates, alkali earth silicates, metal carbonates, alkali carbonates, alkali earth carbonates, synthetic glass, biomass ash, diatomaceaous earth, cement kiln dust, lime kiln dust, Portland cement, non-Portland cements, aluminate cement, and combinations thereof.

14 . The method of claim 10 wherein the liquid water-wetting surfactant comprises at least one surfactant selected from the group consisting of an alcohol ethoxylate, an alcohol ethoxysulfate, an alkyl phenol ethoxylate, a glycol ether, and any combination thereof.

15 . The method of claim 10 wherein liquid the water-wetting surfactant comprises an alcohol ethoxylate, wherein the alcohol ethoxylate comprises C 8 to C 21 alcohol ethoxylated with about 4 moles to about 8 moles of ethylene oxide.

16 . The method of claim 9 wherein the spacer fluid further comprises an aqueous-base fluid selected from the group consisting of fresh water, salt water, brine, seawater, and any combination thereof.

17 . The method of claim 9 further comprising preparing the spacer fluid, the preparing comprising:
mixing a dry blend comprising the solid surfactant and a solid particulate additive with am aqueous-base fluid.

18 . A method comprising:
introducing a spacer fluid into a wellbore, the spacer fluid comprising a solid surfactant composite, the solid surfactant composite comprising a surfactant coated on a calcium silicate solid carrier; and displacing a fluid in the wellbore using the spacer fluid, wherein the solid surfactant composite is prepared by coating a liquid water-wetting surfactant, on the solid carrier and drying the drying the solid carrier to produce the solid surfactant composite.

19 . The method of claim 18 wherein the water-wetting surfactant comprises at least one surfactant selected from the group consisting of an alcohol ethoxylate, an alcohol ethoxysulfate, an alkyl phenol ethoxylate, a glycol ether, or any combination thereof.

20 . The method of claim 18 wherein the solid surfactant further comprises at least one of a dispersant, a defoamer, or both coated on the calcium silicate solid carrier.

Assignees

• Halliburton Energy Services Inc

Inventors

• Jones Paul Joseph
• Datta Amlan
• Elbel Brittany Michelle
• Agapiou Kyriacos

Classifications

• C09K8/40 Primary

  Spacer compositions, e.g. compositions used to separate well-drilling from cementing masses · CPC title

• C09K8/584 Primary

  characterised by the use of specific surfactants · CPC title

• B01F17/0021

  Operations & Transport · mapped topic

• B01F17/0057

  Operations & Transport · mapped topic

• C09K23/02

  Alkyl sulfonates or sulfuric acid ester salts derived from monohydric alcohols · CPC title