Vast amounts of world oil reservoirs are in natural fractured reservoirs. There are different methods for increasing recovery from fractured reservoirs. Miscible injection of water alternating CO2?is a good choice amo...Vast amounts of world oil reservoirs are in natural fractured reservoirs. There are different methods for increasing recovery from fractured reservoirs. Miscible injection of water alternating CO2?is a good choice among EOR methods. In this method, water and CO2?slugs are injected alternatively in reservoir as miscible agent into reservoir. This paper studies water injection scenario and miscible injection of water and CO2?in a two dimensional, inhomogeneous fractured reservoir. The results show that miscible water alternating CO2?gas injection leads to 3.95% increase in final oil recovery and total water production decrease of 3.89% comparing to water injection scenario.展开更多
In this study,the physical and chemical characteristics and direct aqueous mineral carbonation of red gypsum have been investigated.The characterization studies showed that red gypsum is a very potential feedstock for...In this study,the physical and chemical characteristics and direct aqueous mineral carbonation of red gypsum have been investigated.The characterization studies showed that red gypsum is a very potential feedstock for mineral carbonation.It is mainly consisted of CaO,Fe2O3 and SO3 along with some impurities.On the other hand,the carbonation results showed that direct aqueous carbonation of red gypsum resulted in CaCO3 and FeCO3 production,however,the carbonates purity and carbonation efficiency are still very low.展开更多
文摘Vast amounts of world oil reservoirs are in natural fractured reservoirs. There are different methods for increasing recovery from fractured reservoirs. Miscible injection of water alternating CO2?is a good choice among EOR methods. In this method, water and CO2?slugs are injected alternatively in reservoir as miscible agent into reservoir. This paper studies water injection scenario and miscible injection of water and CO2?in a two dimensional, inhomogeneous fractured reservoir. The results show that miscible water alternating CO2?gas injection leads to 3.95% increase in final oil recovery and total water production decrease of 3.89% comparing to water injection scenario.
文摘In this study,the physical and chemical characteristics and direct aqueous mineral carbonation of red gypsum have been investigated.The characterization studies showed that red gypsum is a very potential feedstock for mineral carbonation.It is mainly consisted of CaO,Fe2O3 and SO3 along with some impurities.On the other hand,the carbonation results showed that direct aqueous carbonation of red gypsum resulted in CaCO3 and FeCO3 production,however,the carbonates purity and carbonation efficiency are still very low.
