Surface modification of nanoparticles for enhanced applicability of nanofluids in harsh reservoir conditions: A comprehensive review for improved oil recovery

IF 15.9 1区 化学 Q1 CHEMISTRY, PHYSICAL
Reza Khoramian , Miras Issakhov , Peyman Pourafshary , Maratbek Gabdullin , Altynay Sharipova
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Abstract

Nanoparticles improve traditional Enhanced Oil Recovery (EOR) methods but face instability issues. Surface modification resolves these, making it vital to understand its impact on EOR effectiveness. This paper examines how surface-modified nanoparticles can increase oil recovery rates. We discuss post-synthesis modifications like chemical functionalization, surfactant and polymer coatings, surface etching, and oxidation, and during-synthesis modifications like core-shell formation, in-situ ligand exchange, and surface passivation. Oil displacement studies show surface-engineered nanoparticles outperform conventional EOR methods. Coatings or functionalizations alter nanoparticle size by 1–5 nm, ensuring colloidal stability for 7 to 30 days at 25 to 65 °C and 30,000 to 150,000 ppm NaCl. This stability ensures uniform distribution and enhanced penetration through low-permeability (1–10 md) rocks, improving oil recovery by 5 to 50 %. Enhanced recovery is achieved through 1–25 μm oil-in-water emulsions, increased viscosity by ≥30 %, wettability changes from 170° to <10°, and interfacial tension reductions of up to 95 %. Surface oxidation is suitable for carbon-based nanoparticles in high-permeability (≥500 md) reservoirs, leading to 80 % oil recovery in micromodel studies. Surface etching is efficient for all nanoparticle types, and combining it with chemical functionalization enhances resistance to harsh conditions (≥40,000 ppm salinity and ≥ 50 °C). Modifying nanoparticle surfaces with a silane coupling agent before using polymers and surfactants improves EOR parameters and reduces polymer thermal degradation (e.g., only 10 % viscosity decrease after 90 days). Economically, 500 ppm of nanoparticles requires 56.25 kg in a 112,500 m3 reservoir, averaging $200/kg, and 2000 ppm of surface modifiers require 4 kg at $3.39/kg. This results in 188,694.30 barrels, or $16,039,015.50 at $85 per barrel for a 20 % increase in oil recovery. The economic benefits justify the initial costs, highlighting the importance of cost-effective nanoparticles for EOR applications.

Abstract Image

纳米粒子表面改性,提高纳米流体在恶劣储层条件下的适用性:提高石油采收率的全面综述。
纳米粒子可以改善传统的强化采油(EOR)方法,但也面临着不稳定性问题。表面改性可以解决这些问题,因此了解其对 EOR 效果的影响至关重要。本文探讨了表面改性纳米粒子如何提高石油采收率。我们讨论了化学功能化、表面活性剂和聚合物涂层、表面蚀刻和氧化等合成后改性,以及核壳形成、原位配体交换和表面钝化等合成中改性。石油置换研究表明,表面工程纳米粒子的性能优于传统的 EOR 方法。涂层或功能化可将纳米粒子的尺寸改变 1-5 纳米,确保其在 25 至 65 °C 和 30,000 至 150,000 ppm NaCl 溶液中 7 至 30 天的胶体稳定性。这种稳定性可确保在低渗透性(1-10 md)岩石中的均匀分布和更强的渗透性,从而将采油率提高 5%-50%。通过 1-25 μm 水包油型乳化液提高采收率,粘度增加≥30%,润湿性从 170° 变为 3 储层,平均每公斤 200 美元,2000 ppm 的表面改性剂需要 4 公斤,每公斤 3.39 美元。按每桶 85 美元计算,采油率提高 20%,可获得 188694.30 桶,即 16039015.50 美元。经济效益证明了初始成本的合理性,突出了具有成本效益的纳米粒子在 EOR 应用中的重要性。
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来源期刊
CiteScore
28.50
自引率
2.60%
发文量
175
审稿时长
31 days
期刊介绍: "Advances in Colloid and Interface Science" is an international journal that focuses on experimental and theoretical developments in interfacial and colloidal phenomena. The journal covers a wide range of disciplines including biology, chemistry, physics, and technology. The journal accepts review articles on any topic within the scope of colloid and interface science. These articles should provide an in-depth analysis of the subject matter, offering a critical review of the current state of the field. The author's informed opinion on the topic should also be included. The manuscript should compare and contrast ideas found in the reviewed literature and address the limitations of these ideas. Typically, the articles published in this journal are written by recognized experts in the field.
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