Hydraulic cement composition, process and use

Patent metadata

Field	Value
Publication number	US-12410356-B2
Application number	US-202418628248-A
Country	US
Kind code	B2
Filing date	Apr 5, 2024
Priority date	Apr 30, 2021
Publication date	Sep 9, 2025
Grant date	Sep 9, 2025

Abstract

The present invention describes a hydraulic cement composition, process and use thereof, wherein the composition comprises a hydraulic cement composition with increased resistance against carbon dioxide (CO 2 ) for application in reservoirs such as oil and gas and carbon capture and storage (CCS) wells; with improved performance of cement paste formulations as a material for application in primary, secondary cementing, recovery and/or plugging operations, of reservoirs/wells that operate with high CO 2 content; as a technological alternative to guarantee the integrity of wells in CO 2 -rich environments for long periods of time, without any additional intervention to the already current operational procedures for cementing wells, and with cost reduction in relation to class G cement (currently, the main raw material); and sufficient chemical resistance to carry out enhanced oil (EOR) and gas (EGR) recovery by injecting high levels of CO 2 , increasing reservoir pressure throughout the extraction period of hydrocarbon reservoirs.

First claim

The invention claimed is:

1. A method of cementing, comprising the steps of:
a) obtaining a cementitious composition comprising basalt powder (BP) as a supplementary cementitious material (SCM) in dry base cement powder, wherein the basalt powder comprises a particle size equivalent to the fraction passing through a #325 mesh sieve, up to 0.044 mm and 4000-6000 m 2 /kg;
b) mixing the cementitious composition with water and optional additives to form a hydraulic cementitious composition; and
c) performing primary cementing, secondary cementing, recovery, and/or plugging of a subsurface reservoir, using the hydraulic cementitious composition.

2. The method according to claim 1 , wherein the cementing in step c) is performed on an injection, exploration, monitoring, production and/or enhanced recovery reservoir.

3. The method according to claim 2 , wherein the reservoir is configured for fluids comprising a concentration of a gaseous fraction of CO 2 that is between 5% and 100%.

4. The method according to claim 2 , wherein the reservoir is configured for carbon capture and storage (CCS).

5. The method according to claim 1 , wherein step c) is performed at a temperature between 4° C. and 260° C. and a pressure between atmospheric pressure and 34 MPa.

6. The method according to claim 1 , wherein the basalt powder is obtained from the group consisting of artificial basaltic rocks, ballast, chips, crushed stone, coarse aggregate and/or fine aggregate.

7. The method according to claim 1 , wherein the basalt powder comprises, components selected from the group consisting of Andesine, Augite, Orthoclase and Quartz, Sanidine, Magnetite, Ilmenite, Iron Forsterite and/or Goethite.

8. The method according to claim 1 , wherein the basalt powder comprises a concentration ranging from 0.01 to 9.99% by weight of dry base cement powder.

9. The method according to claim 1 , wherein the basalt powder comprises a supplementary cementitious material with pozzolanic activity up to 330 mg of Ca(OH) 2 consumption.

10. The method according to claim 1 , wherein the particle size of the basalt powder is up to 80% smaller than the class G cement powder.

11. The method according to claim 1 , wherein the basalt powder comprises an average specific surface area of 4000 to 6000 m 2 /kg and an average particle size of 13,316 to 8,877 Å.

12. The method according to claim 1 , wherein the hydraulic cementitious composition comprises a chemical resistance gain to 31.2% to CO 2 degradation due to a reduction of porosity and permeability in relation to the hydraulic cementitious composition without the basalt powder.

13. The method according to claim 1 , wherein there is a decrease in permeability and porosity of the hydraulic cementitious composition in an acidic medium in subsurface.

Assignees

• Uniao Brasileira de Educacao e Assistencia—Mantenedora da PUCRS
• Petroleo Brasileiro S A —Petrobras

Inventors

• Gonçalves Dias Ponzi Gabriela
• Dalla Vecchia Felipe
• Mara De Oliveira Einloft Sandra
• Schütz Marta Kerber
• Jacks Mendes Dos Santos Victor Hugo
• Pontin Darlan
• Martel Renan Bordulis
• De Guimaräes E Stepanha Amanda Sofia
• Dos Santos Alvares Dellyo Ricardo
• Cabral De Menezes Sonia Maria
• Santana Musse Ana Paula

Classifications

• E21B33/13

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

• C04B28/02

  containing hydraulic cements other than calcium sulfates · CPC title

• C04B2111/22

  Carbonation resistance · CPC title

• C09K8/426

  for plugging · CPC title

• C04B7/527

  obtaining cements characterised by fineness, e.g. by multi-modal particle size distribution · CPC title