Stable suspension of elastomer particles for use in a cement slurry

Patent metadata

Field	Value
Publication number	US-2021253931-A1
Application number	US-201916637626-A
Country	US
Kind code	A1
Filing date	Apr 8, 2019
Priority date	Apr 8, 2019
Publication date	Aug 19, 2021
Grant date	—

Abstract

Suspensions of elastomer particles for cement compositions and associated methods of cementing. An example method includes providing a suspension of elastomer particles. The suspension of elastomer particles includes elastomer particles, an aqueous fluid, a viscosifier, a surfactant, and a clay-based stabilizer. The suspension may be combined with a cement slurry to form a cement composition. The cement slurry includes a cement and a base fluid. The cement composition may be introduced into a wellbore penetrating a subterranean formation. The cement composition may be allowed to set in the wellbore.

First claim

What is claimed is:

1 . A method for cementing, the method comprising:
providing a suspension of elastomer particles comprising:
elastomer particles,
an aqueous fluid,
a viscosifier,
a surfactant, and
a clay-based stabilizer;
combining the suspension with a cement slurry to form a cement composition; wherein the cement slurry comprises a cement and a base fluid; introducing the cement composition into a wellbore penetrating a subterranean formation; and allowing the cement composition to set in the wellbore.

2 . The method of claim 1 , wherein the elastomer particles are selected from the group consisting of styrene butadiene, natural rubber, nitrile rubber, butyl rubber, ethylene propylene diene rubber, ethylene propylene rubber, chlorinated polyethylene rubber, polyurethane rubber, polyisoprene rubber, polybutadiene rubber, polyisobutylene rubber, acrylonitrilebutadiene rubber, acrylonitrile-styrene-butadiene rubber, and any combination thereof.

3 . The method of claim 1 , wherein the viscosifier is selected from the group consisting of diutan gum, welan gum, gellan gum, cellulose derivatives, copolymers of 2-acrylamido-2-methyl propane sulfonate and acrylamide, polyvinyl alcohol, polyvinylpyrrolidones, and any combination thereof.

4 . The method of claim 1 , wherein the clay-based stabilizer is selected from the group consisting of magnesium silicate clay, bentonite, sepiolite, attapulgite, phyllosilicates, smectite, hectorites, synthetic versions thereof, and any combination thereof.

5 . The method of claim 4 , wherein the clay-based stabilizer is a synthetic magnesium silicate clay selected from the group consisting of lithium magnesium sodium silicate, lithium magnesium sodium fluorosilicate, and any combination thereof.

6 . The method of claim 1 , wherein the surfactant is selected from the group consisting of ethoxylated nonylphenol, triethanolamine, polyethylene glycol, polypropylene glycol, sulfonated acetone formaldhyde condensate, a fatty acid amine condensate, and any combination thereof.

7 . The method of claim 1 , wherein the cement is selected from the group consisting of Portland cement, pozzolan cement, gypsum cement, high-alumina-content cement, slag cement, silica/lime cement, fly ash, silica fume, metakaolin, granulated blast furnace slag, calcined shale, opaline shale, pumice, pumicite, diatomaceous earth, volcanic ash, tuft, cement kiln dust, Sorel cement, and any combinations thereof.

8 . The method of claim 1 , wherein the elastomer particles are not dry blended with the cement or any dry cement additives.

9 . The method of claim 1 , further comprising storing the suspension of elastomer particles for a time of at least one day prior to combing the suspension with the cement slurry; wherein the suspension of elastomer particles is not mixed during the storage time.

10 . A suspension of elastomer particles comprising:
elastomer particles, an aqueous fluid, a viscosifier, a surfactant, and a clay-based stabilizer.

11 . The suspension of claim 10 , wherein the elastomer particles are selected from the group consisting of styrene butadiene, natural rubber, nitrile rubber, butyl rubber, ethylene propylene diene rubber, ethylene propylene rubber, chlorinated polyethylene rubber, polyurethane rubber, polyisoprene rubber, polybutadiene rubber, polyisobutylene rubber, acrylonitrilebutadiene rubber, acrylonitrile-styrene-butadiene rubber, and any combination thereof.

12 . The suspension of claim 10 , wherein the viscosifier is selected from the group consisting of diutan gum, welan gum, gellan gum, cellulose derivatives, copolymers of 2-acrylamido-2-methyl propane sulfonate and acrylamide, polyvinyl alcohol, polyvinylpyrrolidones, and any combination thereof.

13 . The suspension of claim 10 , wherein the clay-based stabilizer is selected from the group consisting of magnesium silicate clay, bentonite, sepiolite, attapulgite, phyllosilicates, smectite, hectorites, synthetic versions thereof, and any combination thereof.

14 . The suspension of claim 13 , wherein the clay-based stabilizer is a synthetic magnesium silicate clay selected from the group consisting of lithium magnesium sodium silicate, lithium magnesium sodium fluorosilicate, and any combination thereof.

15 . The suspension of claim 10 , wherein the surfactant is selected from the group consisting of ethoxylated nonylphenol triethanolamine, polyethylene glycol, polypropylene glycol, sulfonated acetone formaldhyde condensate, a fatty acid amine condensate and any combination thereof.

16 . A cement composition comprising the suspension of claim 10 , wherein the cement composition further comprises a cement and a base fluid; and wherein the cement is selected from the group consisting of Portland cement, pozzolan cement, gypsum cement, high-alumina-content cement, slag cement, silica/lime cement, fly ash, silica fume, metakaolin, granulated blast furnace slag, calcined shale, opaline shale, pumice, pumicite, diatomaceous earth, volcanic ash, tuft, cement kiln dust, Sorel cement, and any combinations thereof.

17 . A system for cementing, the system comprising:
a suspension of elastomer particles comprising:
elastomer particles,
an aqueous fluid,
a viscosifier,
a surfactant, and
a clay-based stabilizer;
a cement slurry comprising:
a cement, and
a base fluid;
mixing equipment configured to mix the cement slurry and the suspension of elastomer particles to provide a cement composition; a pump fluidly coupled to a tubular extending into a wellbore penetrating a subterranean formation, wherein the tubular is configured to circulate or otherwise convey the cement composition in the wellbore.

18 . The system of claim 17 , wherein the elastomer particles are selected from the group consisting of styrene butadiene, natural rubber, nitrile rubber, butyl rubber, ethylene propylene diene rubber, ethylene propylene rubber, chlorinated polyethylene rubber, polyurethane rubber, polyisoprene rubber, polybutadiene rubber, polyisobutylene rubber, acrylonitrilebutadiene rubber, acrylonitrile-styrene-butadiene rubber, and any combination thereof.

19 . The system of claim 17 , wherein the clay-based stabilizer is selected from the group consisting of magnesium silicate clay, bentonite, sepiolite, attapulgite, phyllosilicates, smectite, hectorites, synthetic versions thereof, and any combination thereof.

20 . The system of claim 17 , wherein the surfactant is selected from the group consisting of ethoxylated nonylphenol triethanolamine, polyethylene glycol, polypropylene glycol, sulfonated acetone formaldhyde condensate, a fatty acid amine condensate and any combination thereof.

Assignees

• Halliburton Energy Services Inc

Inventors

• Jadhav Rahul Nandkumar

Classifications

• C09K8/42 Primary

  Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells (compositions for plastering C09K8/50) · CPC title

• C09K8/487

  Fluid loss control additives; Additives for reducing or preventing circulation loss · CPC title

• C04B28/02

  containing hydraulic cements other than calcium sulfates · CPC title

• Y02W30/91

  Use of waste materials as fillers for mortars or concrete · CPC title

• C09K8/467 Primary

  containing additives for specific purposes · CPC title