Results 51 to 60 of about 636 (179)

Evaluation of the Influence of Antifoam Formulations on Asphaltene Aggregates Using AFM and SEM‐EDS

Journal of Applied Polymer Science, Volume 143, Issue 3, January 15, 2026.
ABSTRACT Asphaltenes, naturally occurring surfactants in crude oil play a pivotal role in stabilizing oily foams during primary oil processing. Accordingly, understanding how antifoam formulations influence asphaltene aggregation is essential. This study investigates the effect of polydimethylsiloxane (PDMS) with varying molar masses on asphaltene ...
Mariana Teixeira Mendes, Andressa Oliveira dos Santos, Rafael Farias Perez, Osvaldo Karnitz Junior, Claudia Regina Elias Mansur   +4 more
wiley   +1 more source

Criterion to foresee the affinity of various coatings/substrates to asphaltene deposition in oil wells

Petroleum
Asphaltene deposition in oil wells has long been considered a severe problem. It can be treated using various chemical, mechanical, and thermal methods.
Sakineh Hadizadeh, M. Reza Malayeri
doaj   +1 more source

Review of Flash Joule Heating for the Synthesis of Graphene and Other Functional Carbon Materials

Carbon Energy, Volume 8, Issue 1, January 2026.
ABSTRACT Flash Joule heating (FJH), as a high‐efficiency and low‐energy consumption technology for advanced materials synthesis, has shown significant potential in the synthesis of graphene and other functional carbon materials. Based on the Joule effect, the solid carbon sources can be rapidly heated to ultra‐high temperatures (> 3000 K) through ...
Zhiwu Tan, Faisal Mahmood, Mengzhen Tian, Yimeng Li, Qingfa Zhang, Zhong Ma, Mingfeng Wang, Weiwei Liu, Shihong Zhang, Haiping Yang, Bin Li   +10 more
wiley   +1 more source

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  

Study on Hydrothermal Catalytic Oxidation Demulsification of Oily Sludge

Engineering Reports, Volume 8, Issue 1, January 2026.
Hydrothermal catalytic oxidation (HTCO) treated oily sludge optimally at 50 mg L−1 catalyst, 200°C, 10 min, oxidation coefficient 1, and 1:5 solid–liquid ratio, achieving 89.46% oil recovery. HTCO efficiently breaks emulsions, improves oil quality, lowers costs, and benefits the environment.
Tao Yu, Zhenhu Chen, Rong Zhang, Mingming Du, Chengtun Qu   +4 more
wiley   +1 more source

Screening and Identification of Diesel Biodegrading Bacteria Isolated From Petroleum Hydrocarbon Contaminated Garage Soils of Kericho County, Kenya

International Journal of Microbiology, Volume 2026, Issue 1, 2026.
Despite the benefits of petroleum hydrocarbon as essential raw energy sources in many industries, they cause major global environmental pollution. Petroleum hydrocarbons pollutants are highly toxic and recalcitrant, making them dangerous and persistent over long periods in an ecosystem.
Zeddy Yegon, John M. Wagacha, Evans Nyaboga, Richard Chalo, Eliud Wafula, Diriba Muleta   +5 more
wiley   +1 more source

Influence of Geological Factors on Asphaltene Precipitation From Crude Oils in Tuoputai Area, Tarim Basin, Northwestern China

Journal of GeoEnergy, Volume 2026, Issue 1, 2026.
Asphaltene precipitation frequently occurs in oil wells within the Tuoputai area of the Tarim Basin, significantly hindering production efficiency. In addition to external factors, such as temperature and pressure, the effects of geological factors on asphaltene precipitation warrant further investigation.
Ruiming Zhao, Honglei Xie, Ziyi Zhang, Xia Wang, Jiqian Wang, Jinqiang Tian, Dongjun Song   +6 more
wiley   +1 more source

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

Development of Graphene Oxide@Hyperbranched Polyglycerol Nanofluids for Application in Enhanced Oil Recovery

Journal of Applied Polymer Science, Volume 142, Issue 45, December 5, 2025.
Schematic representation of graphene oxide (GO) nanofluid functionalization with surfactants or hyperbranched polyglycerol (HPG) for enhanced oil recovery (EOR). The diagram highlights: (1) wettability alteration in limestone and sandstone reservoirs; (2) nanofluid injection into porous media; (3) atomic force microscopy (AFM) characterization of oil ...
Kelly C. B. Maia, Agatha Densy dos S. Francisco, Arley Sena do Nascimento, Giulia C. da Cruz, Felipe A. M. M. Macedo, Cesar Raitz, Daniel Grasseschi   +6 more
wiley   +1 more source

ASFALTENOS, UN DAÑO SEVERO EN YACIMIENTOS ALTAMENTE SUBSATURADOS DE ACEITE VOLÁTIL

Revista Fuentes El Reventón Energético, 2011
Aphaltene organic precipitation and deposition is known as a severe problem at reservoir level, especially in high sub-saturated reservoirs, due to the asphaltic deposition is extended beyond wellbore.
Andrés Camilo Rincón Chavez, Laura Tatiana Cabrales Campo, Zuly Himelda Calderón Carrillo   +2 more
doaj