The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 09, 2025
Filed:
Apr. 05, 2024
União Brasileira DE Educação E Assistência—mantenedora Da Pucrs, Porto Alegre, BR;
Petróleo Brasileiro S.a.—petrobras, Rio de Janeiro, BR;
Gabriela Gonçalves Dias Ponzi, Porto Alegre, BR;
Felipe Dalla Vecchia, Porto Alegre, BR;
Sandra Mara De Oliveira Einloft, Porto Alegre, BR;
Marta Kerber Schütz, Porto Alegre, BR;
Victor Hugo Jacks Mendes Dos Santos, Porto Alegre, BR;
Darlan Pontin, Porto Alegre, BR;
Renan Bordulis Martel, Porto Alegre, BR;
Amanda Sofia De Guimaräes E Stepanha, Porto Alegre, BR;
Dellyo Ricardo Dos Santos Alvares, Porto Alegre, BR;
Sonia Maria Cabral De Menezes, Rio de Janeiro, BR;
Ana Paula Santana Musse, Rio de Janeiro, BR;
União Brasileira de Educação E Assistência—Mantenedora da PUCRS, Porto Alegre, BR;
Petróleo Brasileiro S.A.—PETROBRAS, Rio de Janeiro, BR;
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) 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 COcontent; as a technological alternative to guarantee the integrity of wells in CO-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, increasing reservoir pressure throughout the extraction period of hydrocarbon reservoirs.