Results 41 to 50 of about 21,307 (276)

Three Dimensional Measurements of Asphaltene Deposition in a Transparent Micro-Channel [PDF]

, 2016
This study describes a novel experimental approach to directly measure the thicknesses of asphaltene deposits in micro-channels. The thickness of the asphaltene deposit is estimated using a visualization technique based on 3D digital microscopy.
Biswal, S. L., Chai, John, Goharzadeh, A., Lin, Y.J., Mathew, N., Vargas, F. M., Yap, Y. F., Zhuang, Y.   +7 more
core   +1 more source

FORMULASI DAN UJI KINERJA ASPHALTENE DISSOLVER DENGAN PENGGUNAAN SURFAKTAN ANIONIK DARI MINYAK SAWIT

Jurnal Teknologi Industri Pertanian, 2017
Asphaltene deposition is a major problem in petroleum industry causing slow production or even operational shutdown for removal of deposits. This research was conducted to obtain the best formulation of asphaltene dissolver to dissolve asphaltene ...
Felga Zulfia Rasdiana, Erliza Hambali, Pudji Permadi   +2 more
doaj   +1 more source

Examining Asphaltene Solubility on Deposition in Model Porous Media [PDF]

, 2016
Asphaltenes are known to cause severe flow assurance problems in the near-wellbore region of oil reservoirs. Understanding the mechanism of asphaltene deposition in porous media is of great significance for the development of accurate numerical ...
Biswal, S. L., Chai, John, Goharzadeh, Ashfin, He, Peng, Lin, Yu-Jiun, Mathew, Nevin Thunduvila, Tavakkoli, Mohammad, Vargas, F. M., Yap, Yit-Fatt   +8 more
core   +1 more source

Understanding mechanisms of asphaltene adsorption from organic solvent on mica [PDF]

, 2014
The adsorption process of asphaltene onto molecularly smooth mica surfaces from toluene solutions of various concentrations (0.01-1 wt %) was studied using a surface forces apparatus (SFA).
Abudu A., Acevedo S., Acevedo S., Acevedo S., Adams J. J., Akbulut M., Alboudwarej H., Alvarez G., Alvarez G., Anand Natarajan, Andreatta G., Andrews A. B., Andrews A. B., Buckley J. S., Buckley J. S., Cussler E. L., David Harbottle, Drummond C., Dudasova D., Ekholm P., Faghihnejad A., Friberg S. E., Gonzalez G., Gonzalez G., Goual L., Hannisdal A., Hongbo Zeng, Horvath-Szabo G., Israelachvili J., Israelachvili J. N., Israelachvili J. N., Israelacvili J. N., Jacob Masliyah, Jiang T. M., Jiang T. M., Jouault N., Kawashima H., Kiran S. K., Kupai M. M., Labrador H., Marczewski A. W., Mikami Y., Mitchell D. L., Natalie Kuznicki, Natarajan A., Ostlund J. A., Rane J. P., Rane J. P., Sedghi M., Sjoblom J., Spiecker P. M., Taylor S. D., Vuillaume K., Wang J., Ward A. F. H., Wu X., Xie K., Yarranton H. W., Yen T. F., Zeng H., Zeng H., Zeng H., Zeng H., Zhang L. Y., Zhang L. Y., Zhenghe Xu   +65 more
core   +1 more source

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

Prediction of asphaltene precipitation upon injection of various gases at near-wellbore conditions: A simulation study using PC-SAFT EoS

Oil & Gas Science and Technology, 2019
The depletion of oil reservoirs and increased global oil demand have given impetus to employ various secondary and tertiary oil recovery methods. Gas injection is widely used in both secondary and tertiary modes, though the major problem associated with ...
Mahmoudvand Saba, Shahsavani Behnam, Parsaei Rafat, Malayeri Mohammad Reza   +3 more
doaj   +1 more source

Fines deposition during hydrotreating: Effects of catalyst size and bed arrangement

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Fines deposition presents a significant problem during the hydrotreating of bitumen‐derived gas oils. The accumulation of fines leads to reactor clogging and consequently, pressure drop buildup. At critical levels, the hydrotreating reactor must be prematurely shutdown, resulting in substantial economic losses for refineries.
Simon Kwao, Sundaramurthy Vedachalam, Ajay K. Dalai, John Adjaye   +3 more
wiley   +1 more source

Molecular Interactions between a Biodegradable Demulsifier and Asphaltenes in an Organic Solvent [PDF]

, 2016
A surface forces apparatus (SFA) was used to measure the intermolecular forces between a biodegradable demulsifier (ethyl cellulose, EC) and asphaltenes immobilized individually on molecularly smooth mica surfaces in an organic solvent.
Harbottle, D, Kuznicki, N, Masliyah, J, Natarajan, A, Xu, Z, Zeng, H   +5 more
core   +1 more source

Asphaltene Precipitation Modeling of Sadi Formation in Halfaya Iraqi Oil Field

Journal of Engineering, 2019
Asphaltene is a component class that may precipitate from petroleum as a highly viscous and sticky material that is likely to cause deposition problems in a reservoir, in production well, transportation, and in process plants.
Ali Anwar Ali, Mohammed S. Al-Jawad, Abdullah A. Ali   +2 more
doaj   +1 more source

Entropic patchiness drives multi-phase coexistence in discotic colloid-depletant mixtures [PDF]

Scientific Reports 7, 17058 (2017), 2017
Entropy-driven equilibrium phase behaviour of hard particle dispersions can be understood from excluded volume arguments only. While monodisperse hard spheres only exhibit a fluid-solid phase transition, anisotropic hard particles such as rods, discs, cuboids or boards exhibit various multi-phase equilibria.
arxiv   +1 more source