二氧化碳封存技术在油气行业应用进展

Progress of CO_(2)Sequestration Technique Application in Oil and Gas Industry

油气行业封存二氧化碳具有天然优势,利用油气藏封存二氧化碳不仅可以降低大气中二氧化碳的浓度,减缓温室效应,同时还可以通过向正在生产的油气井中注入二氧化碳达到驱油并增加原油产量的目的,具有很好的经济效益。目前,该技术应用在国内尚处于试点示范阶段,为了对该技术进行深入研究,充分发挥二氧化碳驱油在应对气候变化方面的积极作用,文章对油气藏封存二氧化碳的原理、封存条件等进行概述,对比我国和美国二氧化碳驱油封存情况,总结我国开展二氧化碳驱油的优势,并提出下一步需要深入研究的方向。

CO_(2) sequestration in oil and gas industry has natural advantages.Using oil and gas reservoirs to store CO_(2) can not only reduce the concentration of CO_(2) in the atmosphere and slow down the greenhouse effect,but also achieve the purpose of oil displacement and increasing crude oil output by injecting CO_(2) into oil and gas wells under production,which has high economic benefits.At present,the application of this technique in China is still in the pilot demonstration stage.In order to conduct in-depth research on this technology and give full play to the positive role of CO_(2) displacement in coping with climate change,this paper summarizes the principle and storage condition of CO_(2) storage in oil and gas reservoirs,compares the situation of CO_(2) displacement and storage in China and the United States,summarizes the advantage of CO_(2) displacement in China,and puts forward the direction that needs to be further studied in the next step.