Biodiesel has emerged as a viable alternative to mineral diesel in the transport sector to replace fossil fuels partially. However, long-term compatibility with engine hardware must be evaluated to ensure a smooth transition. Long-term material…
The paper introduces a unique methodology of preventing and controlling the formation of paraffin deposits in oil pipelines, which is a matter of urgency in regions with negative temperatures, including the Arctic regions. The paper presents the…
The properties of wax deposits significantly impact crude oil pipeline pigging operation, and this topic has become a hotspot in flow assurance research. This paper reviews the recent research progress on the radial properties of wax deposits in…
Wax deposition in production pipelines and transportation tubing from offshore to onshore is critical in the petroleum industry due to low-temperature conditions. The most significant popular approach to solve this issue is by inserting a wax…
In this work, Fe2O3, ZnO, and MgO nanoparticles were synthesized via a chemical precipitation method to investigate their effects on wax formation, morphological characteristics, and rheological behavior in a crude oil sample. For this purpose,…
Wax deposition is a hot and difficult topic in waxy crude oil transportation. Wax molecular diffusion is recognized to play a crucial role in wax deposition. Empirical correlations of Hayduk-Minhas and Wilke-Chang are widely used to calculate the wax…
This work presents a fundamental analysis of the mechanisms governing wax deposition and removal in crude oil transportation pipelines. We utilize a numerical framework where oil and deposit are treated as two immiscible phases, and the…
Wax diffusion characteristics are of great importance to the wax deposition prediction in crude oil pipelines. The wax diffusion process of water in oil emulsion (w/o emulsion) is more complicated on account of the influence from dispersed water…
Wax deposition is a severe flow assurance challenge that threatens waxy crude oil production and transportation. For wax remediation, pipeline pigging is the most widely used technique. However, the elusiveness of wax removal mechanism and the lack…
For ensuring the safe and stable operation of waxy crude oil pipeline transportation, in this research, the molecular dynamics model was established to characterize the deposition and wall sticking behavior of waxy crude oil multiphase system…
Algerian crude oil displays a marked propensity for asphaltene precipitation, leading to solid deposits during extraction, transportation, and storage. The relationship between precipitation and chemical composition is unclear
Salt cavern gas storage is an important strategic method to shave the fluctuation of supply- demand of natural gas in China. However, due to low grades of salt beds, there remains lots of insoluble sediments accounting for 1/3 up to 2/3 of the…
We present a direct method for evaluating the effectiveness of inhibitors on asphaltene deposition from crude oil based on a Kretschmann configuration surface plasmon resonance (SPR) sensor. We demonstrate that shifts in the peak SPR wavelength…
High-viscosity oil belong to unconventional sources of hydrocarbon raw materials, the share of which is growing every year. The development of this complex type of raw material requires modern scientific technologies in order to maintain the…
Miscible CO2 injection process has become widely used technique for the enhanced oil recovery in low permeability reservoirs. Core flooding experiments and field test of CO2 miscible flooding in low permeability sandstone reservoirs and its influence…
This work focuses on analyzing the electrokinetic behavior of asphaltenes of extra heavy oil. For this, electrodepositions were carried out in asphaltene solutions (4 %w/w) with two solvents of different polarities: toluene and chloroform. In…
The current global economic trends of low commodity prices for hydrocarbons, competition due to the emergence ofshaleoil andgas, as well as the decline in production from mature oilfields in Trinidad and Tobago (TT) have fuelled the need for the…
While wettability alteration is widely accepted as the dominant mechanism underlying enhanced oil recovery (EOR) in sandstone reservoirs under low salinity water flooding (LSWF) conditions, the effectiveness of LSWF still varies substantially between…
Natural gas hydrates, crystalline solids whose gas molecules are so compressed that they are denser than a typical fluid hydrocarbon, have extensive applications in the areas of climate change and the energy crisis. The hydrate deposit located in the…
As waxy crude oil comes to the surface, it will cool down and causing the waxy fraction to gel. The gelled crude chokes the well, leading to restricted or blocked production and costly downtime for operators. One of the most common chemical solutions…
Non-equilibrium phase behavior of hydrocarbons has a great influence on the development of gascondensate and oil and gas condensate deposits, as well as oil deposits after evolution of dissolved gas.The key parameter of mathematical models that take…
The precise chromatographic isolation of saturates is a common problem of the characterization of highly paraffinic petroleum based samples. Incomplete elution of high-molecular-weight saturates (HMWS) or contamination of saturates by aromatics can…
One of the main problems with the bottomhole formation zone processing is the choice of an acid composition adapted to the peculiarities of the geological structure of the facility. The highest technological effect of the geological and technical…
Wax diffusion characteristics are of great importance to the wax deposition prediction in crude oil pipelines. The wax diffusion process of water in oil emulsion (w/o emulsion) is more complicated on account of the influence from dispersed water…
In pursuit of efficient oil and gas field development, including hard-to-recover reserves, the key objective is to develop and provide the rationale for oil recovery improvement recommendations. This paper presents the results of the use of the…
Deposition in natural gas pipelines is an issue of enormous economic and security consequences. In the past, corrosion products, elemental sulfur, hydrates and sand were common deposits in these pipelines. This study demonstrates for the first time…
Algerian crude oil displays a marked propensity for asphaltene precipitation, leading to solid deposits during extraction, transportation, and storage. The relationship between precipitation and chemical composition is unclear
During recent years the active development of Achimov deposits in the Urengoy oil and gas-condensate field has begun. The development of these deposits will not only reduce the gas production decline rate from traditional Cenomanian and Valanginian…
The thermal action on the layer forms the basis of process SAGD method that leads to a change in viscosity of the heavy oil, an increase of pressure in the vicinity of steam drainage area, and also in overlying and underlying rocks. All of this…
Wax diffusion characteristics are of great importance to the wax deposition prediction in crude oil pipelines. The wax diffusion process of water in oil emulsion (w/o emulsion) is more complicated on account of the influence from dispersed water…
During recent years the active development of Achimov deposits in the Urengoy oil and gas-condensate field has begun. The development of these deposits will not only reduce the gas production decline rate from traditional Cenomanian and Valanginian…
Wax deposition is a hot and difficult topic in waxy crude oil transportation. Wax molecular diffusion is recognized to play a crucial role in wax deposition. Empirical correlations of Hayduk-Minhas and Wilke-Chang are widely used to calculate the wax…
Deposition in natural gas pipelines is an issue of enormous economic and security consequences. In the past, corrosion products, elemental sulfur, hydrates and sand were common deposits in these pipelines. This study demonstrates for the first time…
In this work, Fe2O3, ZnO, and MgO nanoparticles were synthesized via a chemical precipitation method to investigate their effects on wax formation, morphological characteristics, and rheological behavior in a crude oil sample. For this purpose,…
Wax deposition is a hot and difficult topic in waxy crude oil transportation. Wax molecular diffusion is recognized to play a crucial role in wax deposition. Empirical correlations of Hayduk-Minhas and Wilke-Chang are widely used to calculate the wax…
Deposition in natural gas pipelines is an issue of enormous economic and security consequences. In the past, corrosion products, elemental sulfur, hydrates and sand were common deposits in these pipelines. This study demonstrates for the first time…