Article
Engineering, Chemical
Katrina Avery, Mackenzie Roach, Erdogan Kiran, John Hassler, Mark T. Devlin
Summary: This study reports on the effect of polyisobutylene (PIB) on the volumetric properties and viscosity of a synthetic poly(alpha-olefin) base oil. The results show that PIB can cause changes in the packing of the base oil and affect parameters such as dissipative length, free-volume overlap, diffusive energy barrier, and density scaling parameter.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Engineering, Chemical
Katrina Avery, Mackenzie Roach, Erdogan Kiran, John Hassler, Mark T. Devlin
Summary: This study investigates the impact of polyisobutylene (PIB) on the volumetric properties and viscosity of synthetic poly(alpha-olefin) base oil. Experimental evaluations were conducted to examine the effects of different molecular weights and addition levels of PIB on the base oil. Correlations between density and viscosity were analyzed to understand the changes caused by PIB. The results provide insights into the alterations in the base oil's packing and other parameters induced by PIB.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Engineering, Mechanical
Yiyao Luo, Xiaohua Zhu, Yunhai Liu, Xiaowen Wang, Hu Zhang, Bo Li, Yang Peng
Summary: Oil-based drilling fluids (OBDF) are essential in oil drilling engineering due to their lubricating properties. The lubricity performance of OBDF is significantly affected by temperature, but the underlying mechanism is still unclear. In this study, the tribological properties of OBDF were investigated under different temperature environments using reactive molecular dynamics. It was found that increasing temperature leads to unstable flow and higher frictional fluctuation of OBDF. Additionally, the wear regions at the friction interface increased with temperature, but the presence of OBDF inhibited wear by preventing the transformation of the lattice structure.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Chemistry, Physical
Yanru Chen, Qi Song, Yebang Tan
Summary: A copolymer emulsifier with alternating tertiary amine moieties and alkyl groups was synthesized to solve the emulsification problem of oil-based drilling fluids under high-temperature conditions. The emulsifier showed better stability under high temperature and salt resistance when it had a higher proportion of tertiary amine.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Review
Environmental Sciences
Abdul Hazim Abdullah, Syahrir Ridha, Dzeti Farhah Mohshim, Mohammad Yusuf, Hesam Kamyab, Shwetank Krishna, Mohd Azuwan Maoinser
Summary: This article provides a comprehensive review of the progress in the use of nanoparticles in water-based drilling fluids to enhance wellbore stability in shale formations. The review examines experimental methods, the effects of nanoparticles, the mechanisms of shale stability, and future research. The findings indicate that nanoparticles can improve shale stability through physical plugging, chemical inhibition, and electrostatic interactions. The pressure transmission test is identified as a beneficial method for assessing shale stability under reservoir conditions. However, there is a need for further research on a wider range of nanoparticle types.
Article
Chemistry, Physical
A. V. Minakov, E. I. Lysakova, A. D. Skorobogatova, M. I. Pryazhnikov, Y. O. Ivleva, A. S. Voronin, M. M. Simunin
Summary: This study investigates the effect of alumina nanofibers on drilling emulsions and finds that nanofibers have a positive impact on the functional characteristics of drilling fluids. They significantly alter the rheological properties, reduce filtration losses and friction coefficient without impairing the colloidal stability. This material shows great promise for the development of drilling fluids.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Energy & Fuels
Zeeshan Tariq, Muhammad Shahzad Kamal, Mohamed Mahmoud, Olalekan Alade, Ayman Al-Nakhli
Summary: A new formulation of oil-based and water-based drilling fluids was introduced in this study to completely remove barium sulfate filter cake through a strong exothermic reaction, resulting in the removal of the filter cake within 48 hours and the creation of micro-fractures to enhance well cleanup process.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Energy & Fuels
Qianhui Zhao, Quan Shi, Ali A. AlHammadi
Summary: Small changes in temperature or pressure can cause phase separation and significant changes in viscosity in crude oil. The one-parameter friction theory framework using the SARA-based method with the perturbed-chain statistical association fluid theory (PC-SAFT) EoS is accurate in predicting viscosity of light oil. However, it fails for heavy crude oil. In this study, modifications are made to the model by including the effects of asphaltene polydispersity and temperature, resulting in increased accuracy in predicting heavy crude oil viscosity.
Article
Chemistry, Multidisciplinary
Baimei Dai, Peng Xu, Mingbiao Xu, Qisheng Jiang, Qinglin Liu, Siwei Wang
Summary: This study synthesized polymer microsphere emulsion OPME through inverse emulsion polymerization, and evaluated its performance in plugging large pores and micro-fractures in oil-based drilling fluids. The evaluation results showed that adding 3% dosage of polymer microspheres achieved a permeability reduction rate of 82% in pore cores and 100% in fracture cores.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Multidisciplinary Sciences
Salem Basfar, Ashraf Ahmed, Salaheldin Elkatatny
Summary: This study introduces a novel combination of Micromax and barite weighting materials to prevent barite sagging in water-based mud under HPHT conditions. Results showed that adding 25/75 wt% Micromax/barite is enough to eliminate the sag issue, with minimal impact on rheological properties. The HPHT filtration test also indicated improved filtration properties with the novel combination.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2021)
Article
Chemistry, Physical
Wenwen Di, Chunhua Zhao, Tie Geng, Qiang Sun, Zhenghe Xu, Dejun Sun
Summary: This study investigates the microstructures of water droplets and particles in oil-based drilling fluids, and characterizes the state of water using nuclear magnetic resonance and differential scanning calorimetry. The findings reveal that water droplets bind to hydrophilic particles to form hydrated particle aggregates, while water droplets and hydrophobic particles remain suspended individually in the oil phase. Thus, invert emulsion drilling fluids are colloidal suspensions of hydrated particle aggregates in a continuous oil phase.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Engineering, Mechanical
Somesh Patil, Kalpendra Rajurkar, Shantanu Patil, Amit Pratap
Summary: Guerbet esters were synthesized and their applicability in lubricant formulations was studied. The esters were found to be suitable for cutting oil formulations with satisfactory performance compared to commercial TMPTO esters.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Chemistry, Analytical
Jinrui Huang, Frederic Cegla, Andy Wickenden, Mike Coomber
Summary: This paper presents a refined 'dipstick' method for ultrasonic measurement of viscous fluids, allowing simultaneous determination of temperature and viscosity with unprecedented precision. The method includes a model for the 'viscous effect' on wave propagation velocity when the mass of the entrained viscous liquid increases, as well as an algorithm for correcting velocity measurements. The experimental results show excellent agreement with measurements from a highly precise in-lab viscometer and a commercial resistance temperature detector.
Review
Chemistry, Physical
Mohammed Al-Shargabi, Shadfar Davoodi, David A. Wood, Ameen Al-Musai, Valeriy S. Rukavishnikov, Konstantin M. Minaev
Summary: Nanotechnology has been extensively applied in the oil and gas industry, particularly in improving drilling equipment, wellbore fluids, and oil and gas recovery methods. The use of nanoparticles has significantly enhanced the rheology, filtration, and thermal stability of drilling fluids.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Mechanics
Tianshu Liu, Tao Chen, David M. Salazar, Massimo Miozzi
Summary: The relationship between skin friction and surface optical flow in viscous flows is discussed. The optical flow method is applied to visualize surface temperature and mass transfer, and extract skin friction fields in experiments.
Article
Chemistry, Multidisciplinary
J. Hermoso, F. Martinez-Boza, C. Gallegos
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2015)
Article
Energy & Fuels
J. Hermoso, F. J. Martinez-Boza, C. Gallegos
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2017)
Article
Energy & Fuels
Juan Hermoso, Francisco J. Martinez-Boza, Crispulo Gallegos
OIL & GAS SCIENCE AND TECHNOLOGY-REVUE D IFP ENERGIES NOUVELLES
(2017)
Article
Chemistry, Physical
J. Hermoso, F. Martinez-Boza, C. Gallegos
APPLIED CLAY SCIENCE
(2014)
Article
Engineering, Chemical
J. Hermoso, B. D. Jofore, F. J. Martinez-Boza, C. Gallegos
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2012)
Article
Materials Science, Multidisciplinary
Monissa C. Paderes, Craig James, Scott A. Jamieson, Anh Hung Mai, Juan Hermoso Limon, Marc Dolatkhani, Susana Fernandez-Prieto, Wim M. De Borggraeve, Emiliano Fratini
ACS APPLIED POLYMER MATERIALS
(2020)