Results 81 to 90 of about 23,867 (262)

A Solution Model for Predicting Asphaltene Precipitation [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2014
Formation of asphaltene deposition during oil production, processing and synthesis is known as a fundamental problem of petroleum reservoir worldwide. Asphaltene is a petroleum fraction that can lead to increasing the operating costs in these industries.
Mohammad Yazdizadeh, Hessamodin Nourbakhsh, Mohammad Reza Jafari Nasr   +2 more
doaj  

Numerical Validation of Asphaltene Precipitation and Deposition during CO2 miscible flooding

Petroleum Research, 2020
Asphaltene precipitation, flocculation, and deposition can significantly reduce oil production by impacting wellbores, flowlines, and more importantly, formations’ pore space around the well.
Fahad I. Syed, Shahin Neghabhan, Arsalan Zolfaghari, Amirmasoud K. Dahaghi   +3 more
doaj  

Enhanced asphaltene degradation using piezocatalytic technology: A novel approach for sustainable oilfield operations

Results in Engineering
Asphalt or oil spills containing asphaltene can contaminate soil, water bodies, and ecosystems. Natural balances are disrupted by this contamination. Asphaltene contaminates water sources such as rivers, lakes, and aquifers, making them unfit for human ...
Wrea Muhammed Ibrahim, Omid Amiri, Sangar S. Ahmed, Hunar Yasin Muhammed, Peshawa H. Mahmood, Karzan A. Qurbani, Nabaz A. Abdulrahman, Karim A. Younis, Peshang Kh Omer   +8 more
doaj  

Influencing mechanisms of solid-phase asphaltene precipitation in crude oil of Yongjin Oil Field, Junggar Basin

Shiyou shiyan dizhi
Solid-phase asphaltene precipitation and deposition, commonly occurring during reservoir development, lead to reservoir damage and production well blockage, seriously affecting crude oil exploitation and reducing economic efficiency.
Yang YANG, Dongxiao ZHANG, Hao WANG, Zengmin LUN, Zhiwei GAO, Rui WANG, Wei HU   +6 more
doaj   +1 more source

Prediction of the Gas Injection Effect on the Asphaltene Phase Envelope

Oil & Gas Science and Technology, 2015
Asphaltene instability may occur when pressure, temperature and compositional variations affect the reservoir oil. Permeability reduction, wettability alteration, and plugging of wells and flow lines are the consequences of this phenomenon. Therefore, it
Bahrami Peyman, Kharrat Riyaz, Mahdavi Sedigheh, Firoozinia Hamed   +3 more
doaj   +1 more source

Modeling of asphaltene precipitation - part I: comparative study for asphaltene precipitation envelope prediction methods

Iraqi Journal of Chemical and Petroleum Engineering
   The solubility of asphaltenes in crude oils is predominantly influenced by variations in temperature, pressure, and oil composition. These alterations can precipitate asphaltene deposition, resulting in diminished permeability, obstruction of wells ...
Ali A. Ali, Ghassan Hameed Abdul-Majeed, Abdalellah O. Mohmmed   +2 more
doaj   +1 more source

Investigation of Asphaltene Stability in the Iranian Crude Oils [PDF]

Iranian Journal of Chemical Engineering, 2008
The influence of different factors on the asphaltene stability in three iranian crude oils was evaluated. Compositional studies and structural characterization of resins and asphaltenes were carried out in order to study a possible relationship between ...
doaj  

Curated dataset of asphaltene structures

Data in Brief
Asphaltenes, a distinct class of molecules found in crude oil, exhibit insolubility in nonpolar solvents like n-heptane but are soluble in aromatic solvents such as toluene and benzene. Understanding asphaltenes is crucial in the petroleum industry due to their detrimental effects on oil processing, resulting in significant economic losses and ...
Madison Franke, Selsela Arsala, Frozan Tahiry, Simon-Olivier Gingras, Arun K. Sharma   +4 more
openaire   +3 more sources

Research Progress in Nanoparticle Inhibitors for Crude Oil Asphaltene Deposition

Molecules
Currently, the alteration of external factors during crude oil extraction easily disrupts the thermodynamic equilibrium of asphaltene, resulting in the continuous flocculation and deposition of asphaltene molecules in crude oil.
Shuangchun Yang, Chenhui Yan, Jiatie Cai, Yi Pan, Qiuju Han   +4 more
doaj   +1 more source

Investigating the mechanism of interfacial tension reduction through the combination of low-salinity water and bacteria

Scientific Reports
In the enhanced oil recovery (EOR) process, interfacial tension (IFT) has become a crucial factor because of its impact on the recovery of residual oil.
Arastoo Abdi, Behnam Ranjbar, Yousef Kazemzadeh, Farzaneh Aram, Masoud Riazi   +4 more
doaj   +1 more source