Results 71 to 80 of about 1,575 (217)

Experimental Investigation on Asphaltene Deposition in Porous Media During Miscible Gas Injection [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2007
In this work the likelihood of asphaltene deposition problems during dynamic displacement of oil by natural gas in unconsolidated porous media is experimentally inspected.
Sayed Ali Mousavi Dehghani, Mohsen Vafaie Sefti, Behruz Mirzayi, Mahdi Fasih   +3 more
doaj  

Geochemical and Seismic Constraints on the Role of Mud Diapirs in Petroleum Migration and Accumulation in the Recôncavo Basin, NE Brazil

Journal of Petroleum Geology, Volume 49, Issue 2, Page 433-447, April 2026.
ABSTRACT In the Recôncavo Basin, Northeast of Brazil, mud diapirs have been reported for decades, but their role within the basin's petroleum system remains poorly constrained. Here, we combine 2D seismic interpretation, field observations, and organic geochemical analyses of rocks and oil seeps to investigate the relationship between diapirism and ...
Cora Mattos, Egberto Pereira, Lucas Pinto Heckert Bastos, René Rodrigues   +3 more
wiley   +1 more source

Experimental Study of Asphaltene Deposition During Different Production Mechanisms [PDF]

, 2011
Sudden changes in key parameters such as pressure, temperature, and fluid composition may result in asphaltene precipitation and deposition, consequently reducing permeability and porosity as well as well injectivity and productivity.
M. Khalili, Bagheri, M, Hematfar, V, Pak, Tannaz, V. Hematfar, Kharrat, R, Khalili, K, T. Pak, M. Bagheri, R. Kharrat   +9 more
core   +1 more source

Critical Review on the Molecular Behavior of Surfactants at the Oil–Water Interface During Oil Displacement

Energy Science &Engineering, Volume 14, Issue 3, Page 1626-1662, March 2026.
This review systematically explores the molecular behavior of diverse surfactants (anionic, cationic, nonionic, amphoteric) at the oil–water interface through molecular dynamics simulations. It highlights their roles in reducing interfacial tension, altering interfacial structure, and enhancing oil recovery efficiency.
Zhaowei Hou, Wenchao Jiang, Xiaolin Wu, Jian Gai, Liqiang Zheng, Jie Chen, Shuanghua Wang, Shouliang Lu, Bin Huang, Jichao Sun, Long Su   +10 more
wiley   +1 more source

Integrated One-Dimensional Modeling of Asphaltene Deposition in Wellbores/Pipelines [PDF]

, 2017
—Asphaltene deposition in wellbores/pipelines causes serious production losses in the oil and gas industry. This work presents a numerical model to predict asphaltene deposition in\ wellbores/pipelines.
Chapman, Walter, Vargas, Francisco, Yap, Yit, Guan, Q., Zhang, M., Chai, John, Goharzadeh, Afshin   +6 more
core  

Evaluating the Limitations of One‐Dimensional High‐Temperature Gas Chromatography ‐ FID for Wax Solution Analysis: A Systematic Study

Journal of Separation Science, Volume 49, Issue 3, March 2026.
ABSTRACT Wax deposition in petroleum systems is intrinsically connected with paraffin wax composition, yet their quantitative characterization by one‐dimensional high‐temperature gas chromatography with flame ionization detection (HTGC–FID), as prescribed by ASTM D5442, remains challenging.
Fernando B. Okasaki, Ivanei F. Pinheiro, Letícia Bizarre, Vanessa C. B. Guersoni   +3 more
wiley   +1 more source

Asphaltene deposition: A thermodynamic-colloidal model. [PDF]

, 1988
Asphaltene deposition: A thermodynamic-colloidal ...
Kosta John. Leontaritis (7987079)
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Experimental Study and Mathematical Modeling of Asphaltene Deposition Mechanism in Core Samples

Oil & Gas Science and Technology, 2015
In this work, experimental studies were conducted to determine the effect of asphaltene deposition on the permeability reduction and porosity reduction of carbonate, sandstone and dolomite rock samples using an Iranian bottom hole live oil sample which ...
Jafari Behbahani T., Ghotbi C., Taghikhani V., Shahrabadi A.   +3 more
doaj   +1 more source

Multivariate Optimization of Column Liquid Chromatography for the Separation of Saturated, Aromatic, and Acidic Biomarkers in Petroleum and Rock Extracts

Journal of Chemometrics, Volume 40, Issue 2, February 2026.
ABSTRACT Conventional geochemical biomarkers include saturated, aromatic, and carboxylic acid compounds. Saturated and aromatic biomarkers, however, form the foundation of many geochemical studies because of their abundance and intrinsic significance.
Alek A. C. de Sousa, Wandreson dos S. Sousa, Alexandre A. de Souza, Pedro H. B. Lima, Henrique A. Lopes, Wilkins O. de Barros, Benedito B. Farias Filho, Sidney G. de Lima   +7 more
wiley   +1 more source

Suppression of Asphaltene Adsorption and Deposition in Porous Media [PDF]

, 2021
Thesis (Master's)--University of Washington, 2021Asphaltenes constitute a polar and aromatic class of molecules that are part of bitumen, the heaviest component of crude oil.
Sarsito, Harrison
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