Use of solid surfactant composites in well spacer fluids

Patent metadata

Field	Value
Publication number	US-10584273-B2
Application number	US-201515759469-A
Country	US
Kind code	B2
Filing date	Oct 26, 2015
Priority date	Oct 26, 2015
Publication date	Mar 10, 2020
Grant date	Mar 10, 2020

Abstract

Disclosed are spacer fluids and methods of use in subterranean formations. Embodiments may include use of solid surfactant composites in well cementing operations.

First claim

What is claimed is:

1. A method comprising:
providing a solid surfactant composite comprising a water-wetting surfactant and a solid carrier, wherein the water-wetting surfactant comprises C 12 to C 14 alcohol ethoxylate ethoxylated with about 10 moles to about 14 moles of ethylene oxide, wherein the solid carrier comprises amorphous silica and diatomaceous earth, and wherein the solid surfactant composite further comprises a naphthalene sulfonate formaldehyde condensate and a polydimethyl siloxane;
mixing components comprising the solid surfactant composite and a base fluid to provide a spacer fluid; and
introducing a spacer fluid into a wellbore such that the spacer fluid displaces a drilling fluid in the wellbore.

2. The method of claim 1 , wherein the solid surfactant composite is spray dried.

3. The method of claim 1 , wherein the solid surfactant composite further comprise at least one additive selected from the group consisting of a dispersant, a defoaming agent, and any combination thereof.

4. The method of claim 1 , 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, and any combination thereof.

5. The method of claim 1 , wherein the water-wetting surfactant comprises an alcohol ethoxylate, wherein the alcohol ethoxylate comprises C 8 to C 12 alcohol ethoxylated with about 4 moles to about 8 moles of ethylene oxide.

6. The method of claim 5 , wherein the solid carrier comprises amorphous silica, and wherein the solid surfactant composite further comprises a naphthalene sulfonate formaldehyde condensate and a polydimethyl siloxane.

7. The method of claim 1 , wherein the components mixed to prepare the spacer fluid further comprise a solid particulate additive, and the mixing comprising mixing a dry blend comprising the solid surfactant and the solid particulate additive with the base fluid.

8. The method of claim 1 , wherein the base fluid comprises an aqueous-base fluid selected from the group consisting of fresh water, salt water, brine, seawater, and any combination thereof.

9. The method of claim 1 , wherein the spacer fluid is not emulsified.

10. The method of claim 1 , wherein spacer fluid is introduced into a wellbore annulus.

11. A system comprising:
a solid surfactant composite for use in a spacer fluid, wherein the solid surfactant component comprises a water-wetting surfactant and a solid carrier, wherein the water-wetting surfactant comprises C 12 to C 14 alcohol ethoxylate ethoxylated with about 10 moles to about 14 moles of ethylene oxide, wherein the solid carrier comprises amorphous silica and diatomaceous earth, and wherein the solid surfactant composite further comprises a naphthalene sulfonate formaldehyde condensate and a polydimethyl siloxane;
a base fluid for use in the spacer fluid; and
a pump fluid fluidly coupled to a tubular in fluid communication with a wellbore, wherein the tubular is configured to convey the spacer fluid to the wellbore.

12. The system of claim 11 , further comprising a vessel disposed upstream of the pump, wherein the spacer fluid is disposed in the vessel.

Assignees

• Halliburton Energy Services Inc

Inventors

• Leotaud Lennox Martin
• Chatterji Jiten
• Brenneis Darrell Chad
• Benkley James Robert
• Brothers Lance Everett
• Hargrove Brandi R
• Dean William J
• Robertson Logan Todd

Classifications

• C09K8/40 Primary

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

• E21B33/16

  using plugs for isolating cement charge; Plugs therefor {(stage cementing E21B33/146; spacer compositions C09K8/424)} · CPC title

• E21B33/13

  Methods or devices for cementing, for plugging holes, crevices or the like · CPC title