Results 1 to 10 of about 193 (118)

MODELING OF ASPHALTENE DEPOSITION IN PIPELINES [PDF]

open access: yesJournal of Petroleum Science and Technology, 2013
This paper is concerned with asphaltene deposition in fluid flowing through pipelines. Brownian diffusion and drag, gravitational, thermophoresis, buoyancy, and shear removal are considered as possible mechanisms in the asphaltene deposition process. The
Behruz Mirzayi   +2 more
doaj   +2 more sources

Characterization of Asphaltene Deposition Behavior in Diluted Heavy Oil under High-Pressure Conditions

open access: yesEnergies, 2023
Some oil wells in the Tahe oilfield have been reported to produce extremely heavy oil due to asphaltene deposition. To enhance the flow of crude oil through the wellbore, engineers adopted the use of light oil from nearby wells to dissolve the heavy ...
Zuguo Yang   +6 more
doaj   +1 more source

Asphaltene Deposition during CO2 Flooding in Ultralow Permeability Reservoirs: A Case Study from Changqing Oil Field

open access: yesGeofluids, 2021
Asphaltene deposition is a common phenomenon during CO2 flooding in ultralow permeability reservoirs. The deposited asphaltene occupies the pore volume and decreases permeability, resulting in serious formation damage and pore well productivity.
Li Rong-tao   +6 more
doaj   +1 more source

Asphaltene precipitation trend and controlling its deposition mechanism

open access: yesNatural Gas Industry B, 2022
The B oilfield is a large integrated oilfield in the Middle East. Asphaltene precipitates from crude oil and deposits on solid surfaces, affording considerable blockages of the formation, wellbore, and production equipment.
Heng Xue   +6 more
doaj   +1 more source

An Experimental Investigation and Prediction of Asphaltene Deposition during Laminar Flow in the Pipes Using a Heat Transfer Approach [PDF]

open access: yesIranian Journal of Oil & Gas Science and Technology, 2017
In this study, asphaltene deposition from crude oil has experimentally and theoretically been studied using a test loop and an accurate temperature monitoring during a laminar flow.
Farhad Salimi   +2 more
doaj   +1 more source

Experimental study and modelling of asphaltene deposition on metal surfaces with superhydrophobic and low sliding angle inner coatings

open access: yesScientific Reports, 2021
Inner coatings have emerged as a novel technique to prevent the deposition of paraffin, wax, scale, and corrosion of pipelines during oil production and transport. Few studies addressed this technique for preventing asphaltene deposition.
Mohammad Haji-Savameri   +5 more
doaj   +1 more source

Impact of Asphaltene Precipitation and Deposition on Wettability and Permeability [PDF]

open access: yesACS Omega, 2021
Asphaltene precipitation and deposition have been a formation damage problem for decades, with the most devastating effects being wettability alteration and permeability impairment. To this effect, a critical look into the laboratory studies and models developed to quantify/predict permeability and wettability alterations are reviewed, stating their ...
Isah Mohammed   +6 more
openaire   +3 more sources

Numerical Validation of Asphaltene Precipitation and Deposition during CO2 miscible flooding

open access: yesPetroleum 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   +3 more
doaj   +1 more source

Influence of asphaltene deposition on oil seepage characteristics

open access: yes地质科技通报, 2021
Asphaltene deposition not only damages reservoir physical properties, but also affects fluid saturation distribution and seepage characteristics.The oil-water, oil-gas and three-phase relative permeability curves with or without asphaltene deposition ...
Xinwen Li, Guowei Zhang
doaj   +1 more source

Comparative Analysis of CO2, N2, and Gas Mixture Injection on Asphaltene Deposition Pressure in Reservoir Conditions

open access: yesEnergies, 2018
CO2 and N2 injection is an effective enhanced oil recovery technology in the oilfield especially for low-permeability and extra low-permeability reservoirs. However, these processes can induce an asphaltene deposition during oil production.
Peng Wang   +5 more
doaj   +1 more source

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