二氧化碳
固碳
碳氢化合物
油页岩
环境科学
负二氧化碳排放
页岩气
对偶(语法数字)
生产(经济)
环境化学
废物管理
石油工程
化学
地质学
有机化学
工程类
艺术
文学类
经济
宏观经济学
作者
A. E. Moh-Ali,Amjed Hassan,Mohamed Mahmoud,Ammar El‐Husseiny,Israa S. Abu‐Mahfouz
标识
DOI:10.2523/iptc-24605-ea
摘要
Abstract Organic-rich shales have gained significant importance as an abundant source of natural gas and oil. Kerogen maturation can be induced by altering the temperature and pressure conditions over time. This study explores the effects of carbon dioxide injection on kerogen maturation in unconventional shale resources, examining its effects on petrophysical, geochemical parameters, and hydrocarbon productivity. Three types of organic-rich unconventional shales were used to study the effects of artificial maturation. Artificial maturation, aided by CO2, significantly reduced total organic content by (10-40%) and improved rock porosity and permeability due to microfractures induced. The study found significant increases in free hydrocarbon volume (S1) and potentially produced hydrocarbons (S2) in different samples, with slight changes in other geochemical parameters like hydrogen index and sulfur content. Ultimately, this study proposes a method for improving the potential for oil and gas production through kerogen maturation. Using CO2 as an inducement for the maturation of organic-rich shale has shown promising results in accelerating the process while also having the potential to sequester CO2 due to its high affinity for adsorption in shale formations. Furthermore, the use of CO2 as an inducement could lead to more efficient hydrocarbon recovery compared to common maturation processes, as it enhances shale gas production by increasing kerogen thermal cracking.
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