CO2-LPG喷射系统MMP预测的新相关性:以印尼X油田为例

Proceedings of the Second International Conference on Science, Engineering and Technology Pub Date : 1900-01-01 DOI:10.5220/0009359802850290

P. A. Aziz, Hendra Dwimax, T. Ariadji, S. Chandra, Wijoyo Niti Daton, Ressi Bonti

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引用次数: 1

摘要

印度尼西亚的石油产量主要来自边缘油田，为了提高石油产量，需要一种提高石油采收率(EOR)的方法。一种被证明能够大幅提高产油量的EOR方法是混合二氧化碳注入。在实施混合注二氧化碳提高采收率时，最小可靠压力(MMP)值是成功的关键。印度尼西亚油田在进行混合CO2驱油提高采收率时面临的一个问题是，由于油藏老化，油藏压力下降，很难以高于油藏压力的MMP压力进行注入。解决这一问题的方法是使用液化石油气(LPG)降低MMP值。该研究将确定使用液化石油气的最佳方法，以降低南苏门答腊X油田流体的CO2注入MMP值。然后，将使用细管模拟确定各种条件下的MMP值，并使用细管模拟进行关联以确定MMP值。从研究结果来看，原则上，LPG与CO2混合可以最优地降低MMP值。此外，当CO2 - LPG喷射混合气中LPG组分增加30%时，MMP值平均下降29.5%;当己烷和分子量的变化比前增加27.5%时，MMP值平均增加23%;当温度增加20%时，MMP值平均增加13.4%。使用对MMP值的确定有重大影响的参数形成最终的相关性。相关系数r²为98.65%。然后将相关性与先前通过细管模拟确定的MMP值进行测试，并产生平均绝对相对误差(AARE)值为4.52%。然后使用其他文献中的9个流体MMP数据，与其他MMP测定的相关性重新检验相关性。结果表明，提出的相关性产生的AARE值为10.82%。

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A Novel Correlation on MMP Prediction in CO2-LPG Injection System: A Case Study of Field X in Indonesia

In order to increase Indonesia’s petroleum production, which mostly comes from the marginal field, an Enhanced Oil Recovery (EOR) method is needed. One EOR method that is proven to be able to increase large oil yield is mixed CO2 injection. In implementing EOR CO2 injection mixed, the Minimum Reliability Pressure (MMP) value is the key to success. One of the problems faced by oil fields in Indonesia in carrying out EOR of mixed CO2 injection is that the reservoir pressure has dropped due to old age making it difficult to inject with MMP pressure above the reservoir pressure. The solution that can be done to overcome this is by reducing the MMP value using Liquified Petroleum Gas (LPG).This study will determine the optimal method of LPG use to reduce CO2 injection MMP values from Field X fluid in South Sumatra. Then, the MMP value in various conditions will be determined using a slimtube simulation which will be used to make a correlation to determine the MMP value. From the results of the study, in principle mixing LPG with CO2 will reduce the MMP value optimally. In addition, the average MMP value dropped by 29.5% with an increase in the composition of LPG in the gas mixture of CO2 LPG injection by 30%, the MMP value increased by 23% with a change in hexane plus molecular weight of 27.5% higher than before, and the MMP value increased by an average of 13.4% with an increase in temperature of 20%.The resulting correlation is formed using parameters that have a significant influence on the determination of the MMP value. The resulting correlation has R-Squared of 98.65%. The correlation is then tested with MMP values previously determined through a slimtube simulation and produces an Average Absolute Relative Error (AARE) value of 4.52%. Correlation was then re-tested against the correlations of other MMP determinations using 9 fluid MMP data from other literature. The result is the proposed correlation produces an AARE value of 10.82%.

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Proceedings of the Second International Conference on Science, Engineering and Technology

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