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现代社会的进步,对于能源的消耗量不断上升。石油作为能源行业的重要构成部分,各项开采技术及工艺均得到了不同程度的提高和完善。但是由于石油的勘探范围越来越广阔,面对的情况也十分复杂,超稠油即为其中较为典型的类型。将CO2注入井中,降低其粘稠度,再进行开采,是较为新进的工艺技术。本文结合几项试验,包括CO2提高蒸汽驱效率评价研究,简单分析了不同情况下伴蒸汽注入后达到的不同的驱替效率、蒸汽驱后伴蒸汽注入提高采收率的效果等;分析了蒸汽吞吐井注入CO2相态的变化情况,为从事超稠油开采的人员提供一定的参考与借鉴。
The progress of modern society, the consumption of energy is on the rise. Oil as an important part of the energy industry, the mining technology and technology have been improved to varying degrees and improved. However, due to the increasingly wide range of oil exploration, the situation is also very complicated, ultra-heavy oil is one of the more typical type. CO2 injection into the well to reduce its viscosity, and then mining is a more advanced technology. In this paper, several experiments, including the evaluation of CO2-enhanced steam flooding efficiency, are briefly reviewed. The different displacement efficiencies achieved after steam injection with different conditions and the effects of steam injection and enhanced oil recovery after steam flooding are analyzed briefly. The changes of phase state of CO2 infused into the well will provide some references for the personnel engaged in the exploitation of super heavy oil.