钻井液
纳米流体
材料科学
流变学
化学工程
氧化铁
基础油
纳米颗粒
复合材料
钻探
冶金
纳米技术
扫描电子显微镜
工程类
作者
Muhammad Awais Ashfaq Alvi,Mesfin Belayneh,Kjell Kåre Fjelde,Arild Saasen,Sulalit Bandyopadhyay
出处
期刊:Journal of Energy Resources Technology-transactions of The Asme
[ASME International]
日期:2020-09-22
卷期号:143 (4)
被引量:14
摘要
Abstract Lately, nanoparticles (NPs) have shown the potential to improve the performance of oil well fluids significantly. Several studies have reported the ability of NPs to produce improved properties of both water and oil-based drilling fluids. In this study, hydrophobic iron oxide NPs were synthesized by thermal decomposition of iron pentacarbonyl in an inert atmosphere, and its performance was tested in the oil-based drilling fluid with 90/10 oil-to-water ratio (base fluid). Oil-based drilling fluids treated with nanofluids were formulated by adding 0.5 wt% and 1.0 wt% iron oxide NPs in hexane solution to the base drilling fluid. The base fluid and the nanofluid-treated drilling fluids were evaluated by characterizing their rheological properties at different temperatures, viscoelastic properties, lubricity, filtrate loss, static and dynamic settling, and separation properties. Results showed that 0.5 wt% iron oxide dispersed in hexane reduced the high pressure high temperature (HPHT) filtrate loss by 70%, filter cake thickness by 55%, and the coefficient of friction by 39%. Moreover, the nanofluid based drilling fluid reduced the free oil layer caused by syneresis during aging at high temperature by 16.3% compared to the base fluid. This study has shown that hydrophobic iron oxide NPs have the potential to improve the properties of oil-based drilling fluid.
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