Results 61 to 70 of about 710,697 (204)

Categorical Boosting‐PSO: A SHAP‐Interpretable Hybrid Framework for High‐Fidelity Wax Appearance Temperature Prediction in Subsea Pipelines

open access: yesEngineering Reports, Volume 8, Issue 8, August 2026.
CatBoost–PSO accurately predicts wax appearance temperature from oil density, wax content, and pour point temperature, achieving R2 = 0.9760 and RMSE = 1.8106 K. External validation, SHAP interpretation, and low computational cost support rapid wax‐risk screening for subsea pipeline flow assurance.
H. M. Rayhan Rifat   +2 more
wiley   +1 more source

Deposition of Asphaltene from Destabilized Dispersions in Heptane–Toluene [PDF]

open access: yes, 2018
Deposition of carbonaceous materials, such as asphaltene, is a major problem in petroleum production. During production, changing environmental conditions destabilize asphaltene, resulting in dispersions that are out of equilibrium, where asphaltene is ...
Benjamin Smith   +5 more
core   +2 more sources

Saline Permafrost and Cryopegs as Potentially Important Sources of CO2—Assessing Organic Carbon Mineralization Potentials on the Alaskan Coastal Plain

open access: yesGlobal Change Biology, Volume 32, Issue 7, July 2026.
Incubation experiments reveal that potentially carbon‐rich saline permafrost and cryopegs from Arctic coastal plains exhibit CO2 production potentials comparable to active layers. This could substantially shift greenhouse gas balances, as salinity is currently not accounted for in permafrost carbon assessments.
Fabian Seemann   +8 more
wiley   +1 more source

Resonance‐induced restoration of rock permeability degraded by heavy components of crude oil

open access: yesDeep Underground Science and Engineering, Volume 5, Issue 2, Page 556-566, June 2026.
Resonance‐induced changes occur in filtration properties of sedimentary rocks in crude paraffin oil flow under acoustic vibrations. Experimental data on (a) pressure drop; (b) permeability; (c) pressure at the rock inlet; and (d) pressure at the rock outlet are presented.
Evgenii Riabokon   +6 more
wiley   +1 more source

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

open access: yes
—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. This model consists of two modules: a Thermodynamic
Yap, Y. F.   +6 more
core   +3 more sources

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

open access: yesPetroleum
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

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

open access: yesIranian 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   +3 more
doaj  

Terrestrial Analogs to Titan for Geophysical Research

open access: yesReviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon   +21 more
wiley   +1 more source

Correlation for Predicting Asphaltene Deposition [PDF]

open access: yes, 2015
Flow assurance is a key area for effective production management. It is closely related to solid deposit problems. The solid comes from fluid hydrocarbon solids which include wax, hydrate, and asphaltenes.
Armi, Rofizan
core  

Triblock Polymer Engineering Enables Hydration‐Rich, High‐Performance, Fouling‐Resistant Interfaces

open access: yesAdvanced Functional Materials, Volume 36, Issue 36, 4 May 2026.
A molecularly engineered triblock polymer (PHZ) rapidly reorganizes into a hydration‐rich interfacial layer on diverse surfaces, strongly suppressing hydrophobic attraction and fouling. The triblock polymer provides robust energy and steric barriers to oily foulants, enabling high‐performance antifouling at ultralow dosage.
Chenyu Qiao   +6 more
wiley   +1 more source

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