Improving the in-situ upgrading of extra heavy oil using metal-based oil-soluble catalysts through oxidation process for enhanced oil recovery

IF 2.4 4区工程技术 Q3 ENERGY & FUELS Journal of Petroleum Exploration and Production Technology Pub Date : 2024-05-02 DOI:10.1007/s13202-024-01813-8

Reza Nejad Zare, Seyedsaeed Mehrabi-Kalajahi, Mikhail A. Varfolomeev, Sarvar Talipov, Almaz L. Zinnatullin, Kamil G. Sadikov, Farit G. Vagizov

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Abstract

The demand for fuel from unconventional sources is increasing all over the world, however, there are still special and strict regulations regarding the methods of enhanced oil recovery as well as the content of the oil produced, including the amount of sulfur. In-situ combustion (ISC) is an attractive thermal method to enhance oil recovery and in-situ upgrading process. In this work, copper (II) oleate and copper (II) stearate were used for the oxidation of extra heavy oil with high sulfur content in the ISC process using a self-designed porous medium thermo-effect cell (PMTEC) and visual combustion tube. Using PMTEC the catalytic performances of the synthesized oil-soluble copper (II) oleate and copper (II) stearate and kinetic parameters such as activation energy using Ozawa-Flynn-Wall method were studied. The X-ray diffraction (XRD) and high-resolution field emission scanning electron microscopy were used to examine the characteristics of in-situ synthesized CuO nanoparticles during oxidation. As shown, the presence of oil-soluble copper (II) stearate and copper (II) oleate reduced oil viscosity from 9964 to 8000 and 6090 mPa˙s, respectively. Following ISC process in porous media in the presence of copper (II) oleate, the high sulfur extra heavy oil upgraded, and its sulfur content decreased from 10.33 to 6.79%. Additionally, SARA analysis revealed that asphaltene and resin content decreased in the presence of oil-soluble catalysts. During the oxidation reaction, homogeneous catalyst decomposed into nanoparticles, and heterogeneous catalyst is distributed uniformly in porous media and played an active role in the catalytic process. It should be noticed that, these kind of oil-soluble catalysts can be novel and highly potential candidates for initiation and oxidation of extra heavy oil in order to decrease the viscosity, enhanced oil recovery and production of the upgraded oil.

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利用金属基油溶性催化剂，通过氧化工艺提高特重油的原位升级，从而提高石油采收率

全世界对非常规油源燃料的需求与日俱增，但对提高石油采收率的方法以及所产石油的含量（包括硫含量）仍有特殊而严格的规定。原位燃烧（ISC）是一种极具吸引力的热力方法，可提高石油采收率和原位升级工艺。在这项工作中，利用自行设计的多孔介质热效应池（PMTEC）和可视燃烧管，在 ISC 过程中使用油酸铜（II）和硬脂酸铜（II）氧化含硫量高的特重油。使用 PMTEC 研究了合成的油溶性油酸铜 (II) 和硬脂酸铜 (II) 的催化性能，并使用 Ozawa-Flynn-Wall 法研究了活化能等动力学参数。利用 X 射线衍射 (XRD) 和高分辨率场发射扫描电子显微镜研究了原位合成的 CuO 纳米粒子在氧化过程中的特性。结果表明，油溶性硬脂酸铜（II）和油酸铜（II）的存在分别将油的粘度从 9964 mPa˙s降至 8000 mPa˙s和 6090 mPa˙s。在油酸铜（II）存在的情况下，在多孔介质中进行 ISC 处理后，高硫特重油品得到升级，其硫含量从 10.33% 降至 6.79%。此外，SARA 分析表明，在油溶性催化剂存在的情况下，沥青质和树脂含量均有所下降。在氧化反应过程中，均相催化剂分解成纳米颗粒，而异相催化剂则均匀分布在多孔介质中，在催化过程中发挥了积极作用。值得注意的是，这类油溶性催化剂可以成为极具潜力的新型候选催化剂，用于超重油的引发和氧化，以降低粘度、提高石油采收率和生产升级油。

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来源期刊

Journal of Petroleum Exploration and Production Technology Multiple-

CiteScore

5.90

自引率

4.50%

发文量

151

审稿时长

13 weeks

期刊介绍： The Journal of Petroleum Exploration and Production Technology is an international open access journal that publishes original and review articles as well as book reviews on leading edge studies in the field of petroleum engineering, petroleum geology and exploration geophysics and the implementation of related technologies to the development and management of oil and gas reservoirs from their discovery through their entire production cycle. Focusing on: Reservoir characterization and modeling Unconventional oil and gas reservoirs Geophysics: Acquisition and near surface Geophysics Modeling and Imaging Geophysics: Interpretation Geophysics: Processing Production Engineering Formation Evaluation Reservoir Management Petroleum Geology Enhanced Recovery Geomechanics Drilling Completions The Journal of Petroleum Exploration and Production Technology is committed to upholding the integrity of the scientific record. As a member of the Committee on Publication Ethics (COPE) the journal will follow the COPE guidelines on how to deal with potential acts of misconduct. Authors should refrain from misrepresenting research results which could damage the trust in the journal and ultimately the entire scientific endeavor. Maintaining integrity of the research and its presentation can be achieved by following the rules of good scientific practice as detailed here: https://www.springer.com/us/editorial-policies