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

McLand Resources Ltd.拥有一个碳酸盐岩储层，生产含有大量H2S的轻质油。**目前，该公司正在将酸性气体从采出气体中分离出来，这增加了该油藏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，这有助于同时实现两个目标：提高石油采收率和封存储层中的酸性气体。注气设计中的一个关键参数是 ** 在储层温度下酸气和原油混合物之间的最小渗透压力（MMP）。** MMP是指注入的气体将达到与储层油完全相容的压力，** 理论上能够实现100%的采油效率。该公司面临的研究问题是如何 ** 准确确定碳酸盐岩Nisku D-2B地层中酸性气与原油之间的MMP。该方案将开发可靠、高效的计算机程序，供Mcland精确计算酸气与原油之间的最小混合比。新开发的计算机程序能够处理任何组成的酸性气体，这使得我们能够检查酸性气体中H2S浓度对气/油MMP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.