Extended-life settable compositions comprising red mud

Patent metadata

Field	Value
Publication number	US-10323479-B2
Application number	US-201515540554-A
Country	US
Kind code	B2
Filing date	Jan 29, 2015
Priority date	Jan 29, 2015
Publication date	Jun 18, 2019
Grant date	Jun 18, 2019

Abstract

A method for using an extended-life settable composition is disclosed. The method includes providing an extended-life settable composition comprising red mud, calcium hydroxide, water, and a cement set retarder. The method further includes activating the extended-life settable composition. The method additionally includes introducing the extended-life settable composition into a subterranean formation and allowing the extended-life settable composition to set in the subterranean formation.

First claim

What is claimed is:

1. A method comprising:
providing an extended-life settable composition comprising red mud, calcium hydroxide, water, and a cement set retarder wherein the red mud is present in a red mud-to-calcium hydroxide weight ratio of about 3:1 to about 5:1 and wherein the red mud is a product of refining bauxite ore, the refining comprising sodium hydroxide digestion of the bauxite ore followed by filtration of solid impurities generated by the digestion;
activating the extended-life settable composition;
introducing the extended-life settable composition into a subterranean formation; and
allowing the extended-life settable composition to set in the subterranean formation.

2. A method according to claim 1 , wherein the red mud is an insoluble residue from the refining.

3. A method according to claim 1 , wherein the water is present in the extended-life settable composition in an amount of at least 40% by weight of the red mud.

4. A method according to claim 1 , wherein the red mud comprises at least 20% calcite.

5. A method according to claim 1 , wherein the cement set retarder is selected from the group consisting of a phosphonic acid, a phosphonic acid derivative, a lignosulfonate, a salt, an organic acid, a cellulose derivative, a synthetic co- or ter-polymer comprising sulfonate and carboxylic acid groups, a borate compound, and any combination thereof.

6. A method according to claim 1 , wherein the extended-life settable composition further comprises a dispersant.

7. A method according to claim 1 , wherein the cement set retarder comprises a phosphonic acid derivative, and wherein the extended-life settable composition further comprises a polycarboxylated ether dispersant.

8. A method according to claim 1 , further comprising storing the extended-life settable composition for a period of 1 day or longer prior to the step of introducing the cement composition into the subterranean formation.

9. A method according to claim 1 , wherein the step of activating the extended-life settable composition comprises adding a cement set activator to the extended-life settable composition.

10. A method according to claim 1 , wherein the step of introducing the extended-life settable composition comprises pumping the extended-life settable composition through a feed pipe and into a wellbore annulus.

Assignees

• Halliburton Energy Services Inc

Inventors

• Martinez Juan Humberto
• Pisklak Thomas Jason
• Chatterji Jiten
• Brenneis Darrell Chad

Classifications

• C09K8/467 Primary

  containing additives for specific purposes · CPC title

• C04B28/18

  containing mixtures of the silica-lime type · CPC title

• C04B24/003

  Phosphorus-containing compounds · CPC title

• C04B2103/22

  Set retarders · CPC title

• E21B33/14 Primary

  for cementing casings into boreholes · CPC title