Method of nano-armored foam reinforced geological storage of carbon dioxide

US12305490B1 · kind B1 · utility

Assignee

• China University of Petroleum—Beijing · CN

Inventors

• Qichao Lv · Beijing, CN
• Tongke Zhou · Beijing, CN
• Juan Zhang · San Diego, US
• Ya Zhao · Beijing, CN
• Honglei Zhan · Beijing, CN
• Rong Zheng · San Jose, US
• Abdolhossein Hemmati-Sarapardeh · Beijing, CN
• Mehdi Ostadhassan · Beijing, CN
• Zhaoxia Dong · Beijing, CN

Key dates

• Filing date: May 7, 2024
• Grant date: May 20, 2025
• Expiry date: May 7, 2044

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2208/10
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present disclosure provides a method of nano-armored foam reinforced geological storage of carbon dioxide. A pre-CO2 slug, a surfactant foam slug, a nanoparticle-enhanced foaming liquid slug and a post-CO2 slug are injected successively into a geological storage formation, where the post-CO2 slug is injected multiple times in equal portions, and a well soaking is performed after each injection. A nanoparticle-enhanced foaming liquid is made by using nanoparticles of different dimensions or using nanoparticles of multiple dimensions at the same time based on the reservoir characteristics. During the process of well soaking, a supercritical CO2 and the nanoparticle-enhanced foaming liquid in the formation can in situ generate single-dimensional or composite-dimensional nano-armor reinforced CO2 foam underground, which can plug channeling path and expand the CO2 storage range, and make respective slugs cooperate with each other, thereby enlarging a geological storage amount of CO2.