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地质埋存CO2是减少其在大气中的排放量的有效方法,文章中运用油藏组分数值模拟模型确定一个优化采收率和CO2埋存的注采工艺。在一个人造的三维非均质油藏模型进行流动模拟。油藏描述是随机的,这样可以得到比较真实的油藏。利用组分模型进行流体描述,模拟结果显示,传统的油藏工程方法,例如CO2和水的连续注入,即水气交替注入技术不利于最大化地埋存CO2。关闭高产气井和当压力增加时打开停产井的井控技术是共同优化最成功的方法,适用于混相和非混相注气。井控技术比较可靠,因为采用比较真实的油藏模型的所有物理模拟都证实,它既能最大化地产油又能最大化地埋存CO2。
Geological CO2 storage is an effective method to reduce its emissions in the atmosphere. In this paper, a numerical simulation model of reservoir composition is used to determine an optimal recovery rate and CO2 injection technology. Flow simulation in a man-made three-dimensional heterogeneous reservoir model. Reservoir description is random, so you can get a more realistic reservoir. Using the component model to describe the fluid, the simulation results show that traditional reservoir engineering methods such as continuous injection of CO2 and water, that is, alternating water-gas injection technology are not conducive to the maximum storage of CO2. Well control technologies that close high-yield gas wells and open shut-in wells when pressure increases are the most successful method of co-optimization and are suitable for both mixed and non-mixed gas injection. Well control technology is more reliable because all physical simulations using more realistic reservoir models confirm that it maximizes both oil production and maximum CO2 storage.