公开(公告)号：US20240279530A1

公开(公告)日：2024-08-22

申请号：US18628248

申请日：2024-04-05

申请人： União Brasileira de Educação E Assistência - Mantenedora da PUCRS ,  Petróleo Brasileiro S.A. - PETROBRAS

发明人： Gabriela GONÇALVES DIAS PONZI ,  Felipe DALLA VECCHIA ,  Sandra MARA DE OLIVEIRA EINLOFT ,  Marta Kerber SCHÜTZ ,  Victor Hugo JACKS MENDES DOS SANTOS ,  Darlan PONTIN ,  Renan Bordulis MARTEL ,  Amanda Sofia DE GUIMARÃES E STEPANHA ,  Dellyo Ricardo DOS SANTOS ALVARES ,  Sonia Maria CABRAL DE MENEZES ,  Ana Paula SANTANA MUSSE

IPC分类号： C09K8/493 ,  C04B7/13 ,  C04B7/40 ,  C04B7/52 ,  C04B28/02 ,  C04B111/00 ,  C04B111/22 ,  C09K8/42

CPC分类号： C09K8/493 ,  C04B7/13 ,  C04B7/40 ,  C04B7/522 ,  C04B7/527 ,  C04B28/02 ,  C09K8/426 ,  C04B2111/00275 ,  C04B2111/00663 ,  C04B2111/22

摘要： 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 (CO2) 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 CO2 content; as a technological alternative to guarantee the integrity of wells in CO2-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 CO2, increasing reservoir pressure throughout the extraction period of hydrocarbon reservoirs.