Enhancement of Oil Recovery (EOR) by Ionic Liquid Assisted Low Salinity Water in Carbonate Reservoir

IF 1.7 Q3 ENGINEERING, MULTIDISCIPLINARY

International Journal of Mathematical Engineering and Management Sciences Pub Date : 2024-06-30 DOI:10.63463/kjes1130

Maraim Kh. Uoda

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引用次数: 0

Abstract

Carbonate rocks hold approximately 40% of the world's oil. Due to their low waterflood recovery rates, these reservoirs are ideal candidates for enhanced oil recovery (EOR) methods. Chemically enhanced oil recovery (CEOR) techniques, such as surfactant flooding, can increase these reservoirs’ output by modifying wettability and decreasing interfacial tension (IFT). This study explored ionic liquids (ILs), a new type of surfactant, and their potential effects on wettability and IFT reduction. The study initially involved the experimental assessment of the interfacial tension and wettability, using the pendant drop and contact angle. The results reveal that this surfactant changes the wettability from 98◦ to 28◦ and the interfacial tension (IFT) from 3.13 to 1.25 dynes/cm at 250 ppm. Core flooding tests were conducted to examine the effect of ionic liquid concentration on the ultimate oil recovery from the carbonate oil reservoir's core plug. The outcomes reflected extra oil recoveries of 17% and 19.7% OOIP for 50 and 250 ppm, respectively at a flow rate of 0.667 cm3/min, respectively. Core flooding tests achieved an additional recovery of 10.5% OOIP at a flow rate of 1 cm3/min, using the highest ionic liquid concentration.

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离子液体辅助低矿化度水提高碳酸盐岩油藏采收率

碳酸盐岩蕴藏着世界上大约40%的石油。由于水驱采收率低，这些油藏是提高采收率（EOR）方法的理想选择。化学提高采收率（CEOR）技术，如表面活性剂驱，可以通过改变润湿性和降低界面张力（IFT）来提高这些油藏的产量。本研究探讨了离子液体这一新型表面活性剂对润湿性和IFT还原的潜在影响。该研究最初涉及使用垂坠滴和接触角对界面张力和润湿性的实验评估。结果表明，在250 ppm时，表面活性剂的润湿性从98◦变为28◦，界面张力（IFT）从3.13 dynes/cm变为1.25 dynes/cm。通过岩心驱油试验，考察了离子液体浓度对碳酸盐岩油藏岩心塞最终采收率的影响。结果表明，当流量为0.667 cm3/min时，在50 ppm和250 ppm条件下，OOIP的额外采收率分别为17%和19.7%。岩心驱油测试在流速为1 cm3/min时，使用最高离子液体浓度，获得了额外10.5%的OOIP采收率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Mathematical Engineering and Management Sciences Multiple-

CiteScore

3.80

自引率

6.20%

发文量

审稿时长

20 weeks

期刊介绍： IJMEMS is a peer reviewed international journal aiming on both the theoretical and practical aspects of mathematical, engineering and management sciences. The original, not-previously published, research manuscripts on topics such as the following (but not limited to) will be considered for publication: *Mathematical Sciences- applied mathematics and allied fields, operations research, mathematical statistics. *Engineering Sciences- computer science engineering, mechanical engineering, information technology engineering, civil engineering, aeronautical engineering, industrial engineering, systems engineering, reliability engineering, production engineering. *Management Sciences- engineering management, risk management, business models, supply chain management.