Results 81 to 90 of about 23,014 (223)

Influence of asphaltene precipitation on development effect of typical heavy oil reservoirs in eastern South China Sea

Youqi dizhi yu caishoulu
During the development of heavy oil reservoirs in the eastern South China Sea， asphaltene precipitation can cause blockages in reservoir throats， wellbores， and pipelines， leading to a decrease in the productivity of oil wells.
TU Yi, DAI Jianwen, YANG Jiao, WANG Yahui, MIAO Yun, ZHONG Xulin   +5 more
doaj   +1 more source

Asphaltene Stability of Some Iraqi Dead Crude oils

Journal of Engineering, 2019
Asphaltene is one of the fractions of the crude oil which is soluble in aromatics such as benzene or toluene and insoluble in alkane such as n-heptane, n-pentane or petroleum ether (mixture of alkane compounds).
Ali Anwar Ali, Mohammed S. Al-Jawad, Abdullah A. Ali   +2 more
doaj   +1 more source

Influence of asphaltene polarity on hydrate behaviors in water-in-oil emulsions [PDF]

, 2020
Dongxu Zhang, Qiyu Huang, Wei Wang, Rongbin Li, Huiyuan Li, Haimin Zheng, Xiangrui Zhu, Xun Zhang, Yijie Wang   +8 more
openalex   +1 more source

Aspects of asphaltene aggregation obtained from coarse-grained molecular modeling

, 2015
We have performed a molecular-simulation-based study to explore some of the underlying mechanisms of asphaltene aggregation. The daunting complexity of the crude oil + asphaltene system precludes any type of meaningful molecular simulation unless some ...
Galindo, A, Haslam, AJ, Jackson, G, Jover, JF, Mueller, EA, Nieto-Draghi, C, Toulhoat, H   +6 more
core   +2 more sources

Purely predictive method for density, compressibility, and expansivity for hydrocarbon mixtures and diesel and jet fuels up to high temperatures and pressures [PDF]

, 2019
This study presents a pseudo-component method using the Perturbed-Chain Statistical Associating Fluid Theory to predict density, isothermal compressibility, and the volumetric thermal expansion coefficient (expansivity) of hydrocarbon mixtures and diesel
Bamgbade, B., Gavaises, M., Gupta, A., McHugh, M. A., Moore, J., Rokni, H.   +5 more
core   +1 more source

Experimental and mechanism study on the synergistic influence of asphaltene and pressure on the flow and rheological characteristics of waxy oil

Journal of Pipeline Science and Engineering
In underground reservoirs and offshore oilfields, the production and transportation of waxy oil inevitably involve pressure and asphaltene environment.
Yun Lei, Dehua Lai, Haoran Zhu, Rui Dou, Jiangbo Wen, Hanwen Chen, Haoping Peng, Pengfei Yu   +7 more
doaj   +1 more source

Enhancing asphaltene precipitation modeling by cubic-PR solid model using thermodynamic correlations and averaging techniques

Petroleum Science, 2019
Cubic equation-of-state solid models are one of the most widely used models to predict asphaltene precipitation behavior. Thermodynamic parameters are needed to model precipitation under different pressures and temperatures and are usually obtained ...
Aktham E. Shoukry, Ahmed H. El-Banbi, Helmy Sayyouh   +2 more
doaj   +1 more source

The Scott-Magat Polymer Theory for Determining Onset of Precipitation of Dissolved Asphaltene in the Solvent + Precipitant Solution

, 2008
This article has been published in an open access journal and is also available at http://www.benthamscience.com/open/totherj/articles/V002/13TOTHERJ.pdfInternational audienceThe Scott-Magat polymer theory, which assumes that polymers have heterogeneous ...
Mohammadi, Amir H., Richon, Dominique
core   +1 more source

Evaluation of rock and fluid intermolecular interaction between asphaltene and sand minerals using electrochemical, analytical spectroscopy and microscopy techniques

Scientific Reports
Long-time contact of heavy crude oil with rock leads to an adsorption phenomenon, which causes the rock surface to become oil-wet and appears as a barrier to the fluid flow in the porous media.
Jaber Taheri-Shakib, Ali Esfandiarian, Mahyar Rajabi-Kochi, Ezzatallah Kazemzadeh, Mohammad Afkhami Karaei   +4 more
doaj   +1 more source

Asphaltene aggregation onset during high-salinity waterflooding of reservoirs (a molecular dynamic study) [PDF]

, 2018
Salah Yaseen, G. Ali Mansoori
openalex   +1 more source