Cement compositions and methods utilizing nano-hydraulic cement

• US 9,512,346 B2
• Filed: 11/03/2008
• Issued: 12/06/2016
• Est. Priority Date: 02/10/2004
• Status: Expired due to Fees

• Current Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Original Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Inventors: Roddy, Craig W.
• Primary Examiner(s): Figueroa, John J
• Application Number:
  US12/263,954
• Publication Number:
  US 20090124522A1
• Time in Patent Office: 2,955 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: C04B 14/047 Zeolites
• CPC Class Codes: C04B 14/10 Clay sepiolite C04B14/042; grog C04B18/025
• CPC Class Codes: C04B 14/106 Kaolin
• CPC Class Codes: C04B 14/108 Shale, slate colliery shale C04B18/125
• CPC Class Codes: C04B 18/067 Slags
• CPC Class Codes: C04B 18/08 Flue dust , i.e. fly ash
• CPC Class Codes: C04B 18/141 Slags
• CPC Class Codes: C04B 18/162 Cement kiln dust; Lime kiln dust
• CPC Class Codes: C04B 20/008 Micro- or nanosized fillers, e.g. micronised fillers with particle size smaller than that of the hydraulic binder colloidal silica C04B14/062 ; silica fume C04B18/146
• CPC Class Codes: C04B 20/10 Coating or impregnating roofing granules E04D7/005
• CPC Class Codes: C04B 20/1011 Temporary coatings
• CPC Class Codes: C04B 2103/46 Water-loss or fluid-loss reducers, hygroscopic or hydrophilic agents, water retention agents
• CPC Class Codes: C04B 2111/00146 Sprayable or pumpable mixtures
• CPC Class Codes: C04B 28/02 containing hydraulic cements other than calcium sulfates
• CPC Class Codes: C04B 28/04 Portland cements
• CPC Class Codes: C04B 28/08 Slag cements
• CPC Class Codes: C04B 38/10 by using foaming agents C04B38/02 takes precedenceor by using mechanical means, e.g. adding preformed foam
• CPC Class Codes: C04B 7/527 obtaining cements characterised by fineness, e.g. by multi-modal particle size distribution
• CPC Class Codes: C09K 2208/10 Nanoparticle-containing well treatment fluids
• CPC Class Codes: C09K 8/46 containing inorganic binders, e.g. Portland cement
• CPC Class Codes: C09K 8/467 : containing additives for specific purposes
• CPC Class Codes: C09K 8/473 : Density reducing additives, e.g. for obtaining foamed cement compositions
• CPC Class Codes: C09K 8/70 : characterised by their form or by the form of their components, e.g. foams
• CPC Class Codes: C09K 8/80 : Compositions for reinforcing fractures, e.g. compositions of proppants used to keep the fractures open
• CPC Class Codes: E21B 33/14 : for cementing casings into boreholes
• CPC Class Codes: E21B 43/04 : Gravelling of wells
• CPC Class Codes: Y02W 30/91 : Use of waste materials as fillers for mortars or concrete

Abstract

An exemplary method includes introducing a treatment fluid comprising nano-hydraulic cement into a subterranean formation. The treatment fluid may include a drilling fluid, a completion fluid, a stimulation fluid, a well clean-up fluid or a cement composition. Another example method comprises introducing a cement composition comprising nano-hydraulic cement, hydraulic cement, and water into a subterranean formation; and allowing the cementing composition to set in the subterranean formation. An example well treatment fluid comprises nano-hydraulic cement.

Claims

1. A method of primary cementing in a subterranean formation comprising:

introducing a cement composition comprising nano-hydraulic cementitious particles and water into the subterranean formation, wherein the water is present in an amount between about 33% to about 200% of the cement composition, wherein the nano-hydraulic cementitious particles have a mean particle size of between about 20 nanometers to about 100 nanometers, the nano-hydraulic cementitious particles being selected from the group consisting of a Portland cement, a pozzolanic cement, a gypsum cement, a soil cement, a calcium phosphate cement, a high-alumina content cement, a silica cement, a high-alkalinity cement, and any combination thereof; and

allowing the cement composition to set in the subterranean formation by reaction of the nano-hydraulic cementitious particles and the hydraulic cement with the water to form a hardened mass in a space between the subterranean formation and a pipe string.

2. The method of claim 1 wherein the nano-hydraulic cementitious particles comprises the pozzolanic cement.

3. The method of claim 1 wherein the nano-hydraulic cementitious particles comprises the Portland cement.

4. The method of claim 1 wherein the cement composition further comprises at least one nano-particle selected from the group consisting of nano-silica, nano-clay, nano-alumina, nano-zinc oxide, nano-boron, nano-iron oxide, and any combination thereof.

5. The method of claim 1 wherein the cement composition further comprises a nano-clay.

6. The method of claim 1 wherein the cement composition further comprises a swellable particle.

7. The method of claim 1 wherein the cement composition further comprises micro-fine slag.

8. The method of claim 1 wherein the cement composition further comprises micro-fine cement having a mean particle size of less than about 30 microns, but larger than 1 micron.

9. The method of claim 1 wherein the cement composition comprises cement kiln dust.

10. The method of claim 1 wherein the cement composition comprises at least one additive selected from the group consisting of fly ash, shale, slag, zeolite, metakaolin, and any combination thereof.

11. The method of claim 1 wherein the cement composition is foamed.

12. The method of claim 1 comprising maximizing a packing volume fraction in the cement composition.

13. The method of claim 1 further comprising providing the nano-hydraulic cementitious particles, wherein at least of a portion of the nano-hydraulic cementitious particles as provided is contained or encapsulated in a degradable material.

14. The method of claim 1 wherein the nano-hydraulic cement particles are is present in the cement composition in an amount of about 1% to about 25% by weight of cementitious material.

15. A method of primary cementing in a subterranean formation comprising:

providing nano-hydraulic cementitious particles, selected from the group consisting of a Portland cement, a pozzolanic cement, a gypsum cement, a soil cement, a calcium phosphate cement, a high-alumina content cement, a silica cement, a high-alkalinity cement, and any combination thereof, wherein the nano-hydraulic cementitious particles have a mean particle size between about 20 nanometers to about 100 nanometers;

wherein the nano-hydraulic cementitious particles are present in an amount of about 0.1% to 50% by weight of cementitious components;

providing hydraulic cement having a mean particle size of greater than 1 micron;

wherein the hydraulic cement is present in an amount of about 1% to 99% by weight of cementitious components;

preparing a cement composition comprising the nano-hydraulic cementitious particles, the hydraulic cement, and water, wherein the water is present in an amount between about 33% to about 200% of the nano-hydraulic cement particles;

introducing the cement composition into the subterranean formation; and

allowing the cement composition to set in the subterranean formation by reaction of the nano-hydraulic cementitious particles and hydraulic cement with the water to form a hardened mass in a space between the subterranean formation and a pipe string.

16. The method of claim 15 wherein the nano-hydraulic cementitious particles have a mean particle size of less than about 50 nanometers.

17. The method of claim 15 wherein the nano-hydraulic cementitious particles are present in an amount of about 1% to about 25% by weight of cementitious components.

18. The method of claim 15 wherein the hydraulic cement is present in an amount of about 1% to 50% by weight of cementitious components.

19. The method of claim 15 wherein the nano-hydraulic cementitious particles comprise the Portland cement.

20. The method of claim 15 wherein the cement compositions further comprises at least one nano-particle selected from the group consisting of nano-silica, nano-clay, nano-alumina, nano-zinc oxide, nano-boron, nano-iron oxide, and any combination thereof.

21. The method of claim 15 wherein the cement composition further comprises a swellable particle.

22. The method of claim 15 wherein the hydraulic cement comprises micro-fine cement having a mean particle size of less than about 30 microns.

23. The method of claim 15 wherein the cement composition comprises cement kiln dust.