Lost Circulation Compositions Comprising Pumice and Associated Methods

• US 20170036959A1
• Filed: 10/24/2016
• Published: 02/09/2017
• Est. Priority Date: 03/09/2012
• Status: Active Grant

• Current Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Original Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Inventors: Iverson, Benjamin John, Pisklak, Thomas Jason, Morgan, Ronnie Glen, Agapiou, Kyriacos, Brothers, Lance Everett
• Granted Patent: US 9,856,169 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: C04B 12/04 Alkali metal or ammonium silicate cements ; Alkyl silicate cements; Silica sol cements; Soluble silicate cements alkali metal silicates per se, their preparation C01B33/32; ammonium silicates per se, their preparation C01C1/00
• CPC Class Codes: C04B 14/062 Microsilica, e.g. colloïdal silica preparing microsilica slurries or suspensions C04B18/148
• CPC Class Codes: C04B 14/16 porous, e.g. pumice
• CPC Class Codes: C04B 2103/12 Set accelerators
• CPC Class Codes: C04B 2103/22 Set retarders
• CPC Class Codes: C04B 2103/30 Water reducers, plasticisers, air-entrainers, flow improvers
• CPC Class Codes: C04B 2103/408 Dispersants
• CPC Class Codes: C04B 22/0013 Boron compounds
• CPC Class Codes: C04B 22/062 of the alkali or alkaline-earth metals
• CPC Class Codes: C04B 22/124 Chlorides of ammonium or of the alkali or alkaline earth metals, e.g. calcium chloride
• CPC Class Codes: C04B 22/147 Alkali-metal sulfates; Ammonium sulfate
• CPC Class Codes: C04B 22/148 Aluminium-sulfate
• CPC Class Codes: C04B 22/16 containing phosphorus in the anion, e.g. phosphates
• CPC Class Codes: C04B 24/003 Phosphorus-containing compounds
• CPC Class Codes: C04B 24/04 Carboxylic acids; Salts, anhydrides or esters thereof
• CPC Class Codes: C04B 24/122 Hydroxy amines
• CPC Class Codes: C04B 24/163 obtained by reactions only involving carbon-to-carbon unsaturated bonds
• CPC Class Codes: C04B 24/18 Lignin sulfonic acid or derivatives thereof, e.g. sulfite lye
• CPC Class Codes: C04B 24/226 Sulfonated naphtalene-formaldehyde condensation products
• CPC Class Codes: C04B 24/2647 containing polyether side chains
• CPC Class Codes: C04B 24/383 : Cellulose or derivatives thereof
• CPC Class Codes: C04B 28/18 : containing mixtures of the silica-lime type
• CPC Class Codes: C04B 40/0658 : Retarder inhibited mortars activated by the addition of accelerators or retarder-neutralising agents
• CPC Class Codes: C09K 8/467 : containing additives for specific purposes
• CPC Class Codes: C09K 8/487 : Fluid loss control additives; Additives for reducing or preventing circulation loss
• CPC Class Codes: E21B 33/13 : Methods or devices for cementing, for plugging holes, crevices or the like

Abstract

Disclosed are lost circulation treatment fluids and methods of sealing lost circulation zones. Embodiments include a lost circulation treatment fluid comprising pumice, hydrated lime, a set retarder, and water.

Claims

1. A lost circulation treatment fluid comprising:

pumice,

hydrated lime,

a set retarder, and

water.

2. The lost circulation treatment fluid of claim 1 wherein the lost circulation treatment fluid has a shear-thinning index of less than 1 as calculated by the Herschel-Bulkley model.

3. The lost circulation treatment fluid of claim 1 wherein the lost circulation treatment fluid further comprises aluminum sulfate.

4. The lost circulation treatment fluid of claim 1 wherein the set retarder comprises at least one retarder selected from the group consisting of a phosphonic acid, a phosphonic acid derivative, a lignosulfonate, a salt, an organic acid, a carboxymethylated hydroxyethylated cellulose, a synthetic co- or ter-polymer comprising sulfonate and carboxylic acid groups, a borate compound, and any mixture thereof.

5. The lost circulation treatment fluid of claim 1 wherein the lost circulation treatment fluid further comprises a dispersant selected from the group consisting of a sulfonated-formaldehyde-based dispersant, a polycarboxylated ether dispersant, and any combination thereof.

6. The lost circulation treatment fluid of claim 1 wherein the set retarder comprises a phosphonic acid derivative, and wherein the set-delayed cement composition further comprises a polycarboxylated ether dispersant.

7. The lost circulation treatment fluid of claim 1 wherein the lost circulation treatment fluid further comprises a cement set activator, and wherein the cement set activator comprises at least one cement set activator selected from the group consisting of calcium chloride, triethanolamine, sodium silicate, zinc formate, calcium acetate, sodium hydroxide, sodium sulfate, nanosilica, sodium hexametaphosphate, and any combinations thereof.

8. The lost circulation treatment fluid of claim 1 wherein the lost circulation treatment fluid has a density in the range of from about 8 lb/gal to about 17 lb/gal.

9. A lost circulation treatment fluid comprising:

pumice,

hydrated lime,

a set retarder, and

water;

wherein the lost circulation treatment fluid has a shear-thinning index of less than 1 as calculated by the Herschel-Bulkley model,

wherein the lost circulation treatment fluid has a static gel strength of at least about 100 lb/100 ft² at a temperature of about 50°

F. to about 200°

F.

10. The lost circulation treatment fluid of claim 9 wherein the lost circulation treatment fluid has a shear-thinning index of less than 1 as calculated by the Herschel-Bulkley model.

11. The lost circulation treatment fluid of claim 9 further comprising aluminum sulfate.

12. The lost circulation treatment fluid of claim 9 wherein the set retarder comprises at least one retarder selected from the group consisting of a phosphonic acid, a phosphonic acid derivative, a lignosulfonate, a salt, an organic acid, a carboxymethylated hydroxyethylated cellulose, a synthetic co- or ter-polymer comprising sulfonate and carboxylic acid groups, a borate compound, and any mixture thereof.

13. The lost circulation treatment fluid of claim 9 further comprising a dispersant selected from the group consisting of a sulfonated-formaldehyde-based dispersant, a polycarboxylated ether dispersant, and any combination thereof.

14. The lost circulation treatment fluid of claim 9 wherein the set retarder comprises a phosphonic acid derivative, and wherein the set-delayed cement composition further comprises a polycarboxylated ether dispersant.

15. The lost circulation treatment fluid of claim 9 further comprising a cement set activator, and wherein the cement set activator comprises at least one cement set activator selected from the group consisting of calcium chloride, triethanolamine, sodium silicate, zinc formate, calcium acetate, sodium hydroxide, sodium sulfate, nanosilica, sodium hexametaphosphate, and any combinations thereof.

16. The lost circulation treatment fluid of claim 9 wherein the lost circulation treatment fluid is a set-delayed cement composition capable of remaining in a pumpable fluid state for about 1 day or longer at a temperature of about 100°

F.

17. The lost circulation treatment fluid of claim 9 wherein the lost circulation treatment fluid has a static gel strength of at least about 500 lb/100 ft² at a temperature of about 50°

F. to about 200°

F.

18. A lost circulation treatment system comprising:

a lost circulation treatment fluid comprising;

pumice, hydrated lime, a set retarder, and water, wherein the lost circulation treatment fluid is a set-delayed cement composition capable of remaining in a pumpable fluid state for about 1 day or longer at a temperature of about 100°

F.; and

a cement set activator.

19. The lost circulation treatment system of claim 18 wherein the lost circulation treatment fluid has a shear-thinning index of less than 1 as calculated by the Herschel-Bulkley model.

20. The lost circulation treatment system of claim 18 wherein the lost circulation treatment fluid has a static gel strength of at least about 100 lb/100 ft² at a temperature of about 50°

F. to about 200°

F.