Results 41 to 50 of about 7,502 (225)

An assessment of stress and production rate of sucker rod heat pipes in oil well pumping system

Deep Underground Science and Engineering, EarlyView.
The sucker rod pumping system is the preferred oil extraction technique. The concept about equipping the hollow vacuum space in solid sucker rods with heat pipe has been scrutinized in terms of stress and oil production evaluation. Abstract The implementation of the heat pipe concept in sucker rods for oil pumping systems negates the requirement for an
R. S. Anand, Ang Li, Wenbo Huang, Juanwen Chen, Qingshan Ma, Fangming Jiang   +5 more
wiley   +1 more source

A Systematic approach to determine the optimal production rate to inhibit asphaltene deposition [PDF]

, 2016
This thesis utilizes a systematic mathematical model, scaling analysis, to quantify the effect of production rate on asphaltene deposition, using a set of uniquely described mathematical equations modeled for the deposition process.
Nosakhare, Adesuwa
core  

Mitigating Asphaltene Deposition in CO₂ Flooding with Carbon Quantum Dots

Energies
Carbon capture, utilization, and storage (CCUS) technology has emerged as a pivotal measure in mitigating global climate change. Notably, CO2-EOR is esteemed for its dual function of sequestering CO2 and enhancing oil recovery.
Qi Liu, Yangwen Zhu, Hang Ye, Haiying Liao, Quanqi Dai, Michelle Tiong, Chenggang Xian, Dan Luo   +7 more
doaj   +1 more source

Low‐Temperature in Situ Upgrading of Ultra‐Deep Heavy Oil Using Ni–Ce/MOF–OTf Superacid Catalysts to Enhance Energy Utilization and Sustainability

EcoEnergy, EarlyView.
A triflate‐functionalized Ni–Ce/MOF–OTf superacid enables low‐temperature (∼140°C) in situ upgrading of ultra‐deep heavy oil. It reduces viscosity by 92.11% in 12 h, maintains activity over cycles, and delivers 90.25% recovery with a lower carbon footprint by selective bond cleavage. ABSTRACT Ultra‐deep heavy oil is an important unconventional resource,
Li Wang, Ji‐Xiang Guo, Qiming Huang, Kunpeng Li, Chi Li, Yajie Wu   +5 more
wiley   +1 more source

Asphaltene reaction via supercritical fluid extraction [PDF]

, 1993
Supercritical fluid extraction (SFE) of bitumen was carried out in a continuous extractor using propane as the solvent at several temperatures and pressures.
Deo, M. D., Hanson, F. V.
core   +3 more sources

Adsorption behavior of asphaltene molecules on rock surface: A molecular dynamic study [PDF]

E3S Web of Conferences
Asphaltene deposition on rock surface seriously affects oil recovery efficiency. Molecular dynamics simulation method is used to study the difference in the adsorption behavior of asphaltene molecules on quartz surface, which will help to improve the in ...
Chen Sihang, Su Hang, Zhang Lu, Zhang Qian, Zhang Minghui, Sun Pengyu, Wu Yining, Ren Hao   +7 more
doaj   +1 more source

Quantitative Insights into Atomic Scale Oil–Clay Adhesion Governing Shale Oil Retention and Mobility

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Atomic force microscopy reveals a clear adhesion hierarchy between shale oil and clay minerals, governed by nanoscale surface chemistry. Strong interactions on chlorite and illite arise from abundant polar sites and cation bridging, whereas weaker coupling on montmorillonite limits interfacial binding.
Chen Lv, Guanwen Lu, Guandong Su
wiley   +1 more source

Multiphase flow modeling of asphaltene precipitation and deposition

Oil & Gas Science and Technology, 2018
Asphaltene precipitation in reservoirs during production and Enhanced Oil Recovery (EOR) can cause serious problems that lead to reduction of reservoir fluid production.
Tabzar Amir, Fathinasab Mohammad, Salehi Afshin, Bahrami Babak, Mohammadi Amir H.   +4 more
doaj   +1 more source

Synergistic Molecular Modulation of ππ Stacking for High‐Performance Pitch‐Derived Hard Carbon Anodes

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A synergistic molecular strategy is demonstrated to disrupt intrinsic ππ stacking in pitch, boosting 6‐fold sulfonation, yielding a hard carbon with 0.371 nm interlayer spacing and maximized closed pores, and achieving a high reversible capacity, remarkable rate capability (205.6 mAh g−1 at 2 A g−1) and cyclic stability.
Xiang Wang, Yangyang Chu, Shuaipeng Liu, Ruyao Zhang, Zeyu Zhu, Qiang Li, Weixiang Li, Ya‐Xia Yin, Sailong Xu   +8 more
wiley   +1 more source

Investigation of Asphaltene Adsorption onto Zeolite Beta Nanoparticles to Reduce Asphaltene Deposition in a Silica Sand Pack

Oil & Gas Science and Technology, 2018
Zeolite beta nanoparticles were used as a new asphaltene adsorbent for reducing asphaltene deposition during fluid injection into a silica sand pack.
Kashefi Sepideh, Lotfollahi Mohammad Nader, Shahrabadi Abbas   +2 more
doaj   +1 more source