Determination of minimum miscibility pressure of acid gas - Crude oil systems in the Nisku Pool

麦克兰德资源有限公司拥有一个碳酸盐储油层，生产一种含有大量硫化氢的轻质石油。**目前，该公司正在将酸性气体与已采出的气体分离，这增加了该储油池的**生产操作的额外成本。该公司希望研究将生产的酸性气体重新注入储层的机会，这将有助于同时实现两个目标：提高石油采收率**和隔离储层中的酸性气体。注气设计中的一个关键参数是在地层温度下酸性气体和原油混合物之间的最小混相压力。**混相压力是指注入的气体与油藏石油达到完全混溶的压力，**使理论上100%的采油效率。该公司面临的研究问题是如何**准确地确定碳酸盐岩尼斯库D-2B地层中酸性气与原油之间的基质金属氧化物。这项**建议将开发可靠而高效的计算机程序，可供Mcland使用，以准确**计算酸性气体和原油之间的基质金属氧化物。新开发的计算机程序能够处理含有任何成分的酸性气体，这使我们能够检查酸性气体中硫化氢浓度**对气/油基质金属氧化物的影响。

McLand Resources Ltd. owns a carbonate reservoir producing a light oil with a significant amount of H2S.**Currently, the company is separating the acid gas from the produced gas, which adds additional cost to the**production operation of the pool. The company wants to look into the opportunity of re-injecting the produced**acid gas into the reservoir, which can help to simultaneously accomplish two goals: enhancing the oil recovery**efficiency and sequestering acid gas in the reservoir. One key parameter in the gas injection design is the**minimum miscibility pressure (MMP) between the acid gas and crude oil mixtures at reservoir temperature.**MMP refers to the pressure at which the injected gas will reach complete miscibility with reservoir oil,**enabling a theoretical 100% oil recovery efficiency. The research problem faced by the company is how to**accurately determine the MMP between the acid gas and crude oil in the carbonate Nisku D-2B formation. This**proposal will develop reliable and efficient computer program that can be used by Mcland to accurately**compute the MMP between acid gas and crude oil. The newly developed computer program is able to handle**acid gases with any compositions, which enables us to examine the effect of H2S concentration in the acid gas**on the gas/oil MMP.