In order to explore the changing law and influencing factors of the filtering performance of natural gas filter elements under high pressure conditions, four types of filter elements were selected as the research objects, and field tests and…
The end temperatures and the pressure drop of the long-distance pipeline for the LNG transportation, at different thickness of the thermal insulation layer with different external environment temperatures, are obtained by using Sinda/Fluint software.…
This paper summarizes an investigation of certain operating parameters on the viscosity of petroleum emulsions. The production of crude oil is accompanied by emulsified water production, which comes along with various challenges like corroding the…
Directional self-transportation of tiny droplets is significant in many fields. However, almost all existing studies focus on the phenomenon in air, and to realize similar performance in complex environments, such as oil, is still extremely rare.…
Crude oil is considered as a major source of energy all over the world. Midstream refers to the various methods of transportation. Important issues that oil transportation methods face are spills and inadvertent emissions. Therefore, most of the…
An experimental study which aimed to analyze the pressure drop when the oil-water two-phase flow mixed with surfactant flows through porous medias was introduced. Porous media with the quartz sands mainly ranging from 0.21.2 mm and the oil-water…
The present work focuses on the improvement of flow properties during the transportation of heavy oil via 0.0254-, 0.0381-, and 0.0508-m-diameter pipelines. The effect of temperature, water cut, natural extract Madhuca Longifolia (ML), and potato…
On the basis of self-designed and built pipeline system of drag reduction on water annulus transportation of heavy oil, the flow resistance characteristics of heavy oil simulated by 500# white oil under the action of water ring in horizontal pipe…
With the increased water content in heavy oil gathering pipelines and application of cold transportation methods, understanding adhesion behavior in heavy oil/water/pipeline wall systems has greatly gained in importance. Here, a combined experimental…
In this paper, Euler models suitable for hydrate slurry flow were established based on the particle dynamics theory. The results showed that the distribution of the velocity, particle concentration and turbulent kinetic energy in the curved pipe was…
The existence of saltwater in extracted crude oil causes major problems such as corrosion and low quality of the extracted crude oil. Therefore, droplet coalescence of saltwater and desalination have been paid much attention by researchers about…
Asphaltenes and paraffin are considered the molecules present in heavy crude oils that tend to form aggregates that cause high viscosity values. Understanding the molecular interactions occurring in such aggregation phenomena is essential to apply…
Drop-in biofuels, which are functionally equivalent to petroleum-based transportation fuels and fully compatible with existing petroleum infrastructure, have been widely used in developed countries in recent decades as an effective means of reducing…
Hydrates generation-blockage in submarine natural gas pipelines has always been related to the safety of deepwater natural gas production and transportation. However, the current hydrate formation risk prediction in subsea pipelines is still…
Oil transportation with traditional seamless steel pipe consumes more energy and produces corrosion problem easily. It is suggested that Fiberglass Reinforced Plastics replace seamless steel pipe when conveying crude oil of high viscosity.…
Although the problem of wax deposition in multiphase transportation pipelines have been addressed and some related wax deposition models have been developed in recent years, the complex wax deposition paths derived from the potential variety of flow…
Water (W) and oil (O) normally mix during production and while passing through valves and pumps to form a persistent water-in-oil (W/O) emulsion, which is a serious restriction in oil production and transporting and refining processes. The objective…
Emulsified water droplets must be extracted from crude oil for economical and transport purposes, which is achievable by chemical demulsification. Four different chemicals were tested on water-in-crude oil emulsions using a newly developed nuclear…
To explore the problem of the slack flow and waterhead having a huge impact on the low point of a pipeline during the water-filling process of a large-drop pipeline, the crossing section of the Nujiang China-Myanmar crude oil pipeline (for which the…
The high viscosity and low surface tension of heavy crude oils, combined with the low relative permeability of the medium, cause their entrapment in the porous reservoir nets, affecting the oil production. In this work, the effect of two…
Emulsions of water-in-oil (W/O) is a very common occurrence in the oil and gas industries. The viscosity and rheological properties of the emulsions are of great interest to the petroleum industry, especially during oil exploitation and…
Natural gas mixture flowing in the transportation pipeline is impure owing to the presence of various impurities. The presence of non-hydrocarbons impurities in natural gas mixture impacts the natural gas properties at different extents. The effect…
We assessed the technical and economic viability of small-scale plants producing “drop-in replacement” transportation fuels from non-food biomass and capturing and storing byproduct CO2 in spent shale-gas wells. Additional designs considered…
In the present work, a 3D numerical study has been performed to investigate the core-annular flow of waxy crude oil/water in inclined pipes with a gradual expansion. Waxy crudes are highly viscous crude oils that exhibit non-Newtonian flow behavior,…
Improvement of flow properties of crude oil through pipelines, the effect of temperature, diameter, water cut, and novel extracted surfactant on pressure drop, shear viscosity was studied along with energy analysis. The impact of diameter,…
A dual-media thermal energy storage system consisting of ceramic pebbles as a storage material and high-temperature heat transfer fluid (HTF) is analyzed for 1 MWe National Solar Thermal Power Plant. A numerical model has been formulated to study the…
Dry fractionation has shown to be a promising method to obtain less refined protein ingredients from legumes with novel technofunctionalities compared to solvent extracted protein isolates. However, the relationship between composition and…
Ice crystallization in confined spherical geometries is investigated experimentally at ambient pressure conditions. Water-in-crude (w/o) oil emulsions are formed by homogenization of an acidic North Sea crude oil with water or brine, at aqueous phase…
The storage of natural gas in geological structures such as depleted fields, aquifers and salt caverns plays an important role in a gas supply system as it balances the fluctuation of gas demand and price. Hydraulic loss due to fluid flow through gas…
Close examination of surface interactions between calcite and crude oil is relevant to better understand the mechanisms that lead to wettability changes in petroleum reservoirs. Mineral surface wettability is a determinant factor in petroleum…
A 17 kWhth packed bed thermal energy storage (PBTES) system for concentrated solar power application (CSP) has been investigated by using a two-phase energy model. The PBTES system used in this study consists of quartzite as storage material and…
Inhalation of PM2.5, particles with an aerodynamic diameter 2.5 particles were size-fractioned into 13 size bins covering 2.5 concentration (20.83 5.21 g/m3) was released from a slick of DOR 1:25, 8.83 greater than the case with pure crude oil. The…
In this study, the atomization blending property for heavy crude oil extraction was systematically investigated both numerically and experimentally. In the experiment conducted, the blending behavior was simulated using hydraulic oil and spray with…
The existence of back pressure will cause shock wave in the Laval nozzle of the supersonic separator, which will lead to the condensed droplets to evaporate and reduce the separation efficiency of the separator. It is of great significance to…
In order to investigate the effect of different nonionic surfactants on hydrate formation in oil-water emulsion systems, the hydrate formation experiments were carried out in a diesel water-in-oil emulsion system with a water cut of 40% using…
An in-situ spiral separator was designed to sand removal and purification NGH to solve the problems of equipment wear, reservoir collapse and so on, based on the solid fluidization method and combined with the physical properties of mixed slurry.…
Coil-wound heat exchangers (CWHEs) have been widely used in natural gas liquefaction plants nowadays. But few studies on the condensation heat transfer and frictional pressure drop of mixed hydrocarbon refrigerants inside the tubes of CWHEs have been…
The aim of present study is to develop a mathematical model to predict water and salt separation efficiencies in an industrial two stages crude oil desalting process. The considered process consists of mixing valve and electrostatic drums connected…
The temperature drop of waxy crude oil after a shutdown is the basic premise for restarting relative mechanical calculation. However, computational accuracy has been paid much more attention excessively in the relevant techniques proposed in the…
Settling tanks have been widely applied to water and sand separation from crude oil. At present, the related studies on the effect of water and sand separation in settling tanks mainly focus on computational simulation methods. This paper puts…
Crude oil dehydration is one of the first, most important and challenging steps in oil production and processing. To achieve rapid and energy-optimized demulsification of water-in-oil emulsions, Saudi Aramco and TechnipFMC have jointly developed a…
Both oil droplets and gas bubbles have simultaneously been quantified in laboratory experiments that simulate deep-water subsea releases of both live oil (saturated with gas) and additional natural gas under high pressure. These data have been used…
Reliable estimation of the condensed water droplets trajectories inside Supersonic separators (3Ss) during the dehydration process is essential for proper design and safe operation. Most of previous researches ignored the actual sizes of condensed…
A new method to removal carbon dioxide from natural gas was proposed in this paper. Combining the nucleation and growth model, the droplet surface tension of carbon dioxide, models of methanecarbon dioxide mixture gas in the supersonic nozzle was…
Natural gas sweetening is an essential process within hydrocarbon processing operations, enabling compliance with product quality specifications, avoiding corrosion problems, and enabling environmental care. This process aims to remove hydrogen…
A new class of magnetically responsive and interfacially active Janus (MJanus) nanoparticles was designed and synthesized by sequential adsorption of cellulosic materials: hydrophobic ethyl cellulose (EC) and hydrophilic carboxymethyl cellulose (CMC)…
Crude oil emulsions can reach stability levels that pose severe challenges for the processing industry. Certain conventional methods are used to deal with these challenges, such as chemical demulsification. In this article, two chemicals were mixed…
Natural gas hydrates are a potential energy resource that can ease the energy crisis, and their development has attracted an increasing amount of worldwide attention. Submarine natural gas hydrates are mainly stored in the shallow strata of deep…
In this paper, Euler models suitable for hydrate slurry flow were established based on the particle dynamics theory. The results showed that the distribution of the velocity, particle concentration and turbulent kinetic energy in the curved pipe was…
The separation technology of carbon dioxide (CO2) is a key step to achieve high efficient carbon capture and storage targets. In the present study, we propose a new concept to remove CO2 from the offshore natural gas industry, which utilises the…