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.…
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…
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…
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…
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.…
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…
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…
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…
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…
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…
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…
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…
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…
In order to study the decomposition process of gas hydrate depressurization production, a mathematical model of gas hydrate reservoir is established in cylindrical coordinate system and it is solved by finite difference method. With this modeling…
Natural gas hydrate (NGH) is widely considered as an alternative energy source due to its tremendous reserves, cleanness and high energy density. During the exploitation process, discharging the gas-liquid phase to the surface for separation not only…
The phase inversion point is of great significance for drag reduction in the flow of heavy crude oil. In this study, we used 25-mm inner diameter (ID) stainless steel pipes to investigate the oil-water flow characteristics of four heavy oils at five…
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…
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…
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…
Liquid loading is a common phenomenon for natural gas gathering and transportation in hilly terrain pipelines, and traditional mechanical pigging technology is usually employed to remove the liquid loading in these pipelines. However, this technology…
In the development of natural gas hydrates (NGHs) in deep-water environment, gas hydrates will form in the water-drainage line of the wellbore due to low-temperature and high-pressure environment. The flow pattern in the water drainage line is…
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…
Since the production regime of shut-in after fracturing is generally adopted for wells in shale oil reservoir, a shut-in pressure drop model coupling wellbore-fracture network-reservoir oil-water two-phase flow has been proposed. The model takes into…
The phase inversion point is of great significance for drag reduction in the flow of heavy crude oil. In this study, we used 25-mm inner diameter (ID) stainless steel pipes to investigate the oil-water flow characteristics of four heavy oils at five…
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,…
Oil-in-water emulsions have been proposed as an emergent technology to transport viscous heavy crude oils. In this work, pipeline flow properties of heavy oil–in–water emulsions and their feasibility to reduce the elevated pressure drop related to…
The flow pattern, pressure drop gradient and apparent viscosity of extra heavy crude oil solution CO2 (viscosity = 10,821 mPas at 50 C) were studied in the high-temperature and high-pressure experimental loop driven without pump shear. Based on the…
This study investigates the effect of various parameters on the fluid flow characteristic of nanosilica enhanced two phase (oil–water) flow in the pipeline using experimental and data driven approach. Levenberg-Marquardt (LM) algorithm and Scaled…
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…
The present study conducts an experiment on water lubricated oil-water flow inside a horizontal pipe designed with a 90° elbow, in which the selected test fluids are mineral oil and tap water with a viscosity ratio of approximately 1000 and density…
Heavy oil and water dispersed flows in a 0.0254 m, 0.0381 m, 0.0508 m ID horizontal pipelines (Pipeline length = 2.5 m) were investigated experimentally and numerically (at steady state) without and with additives by varying the temperature from…
The process of selecting a location to establish a modular refinery is just as intricate as designing one. Of the numerous factors and conditions to consider when siting a modular refinery, crude oil sourcing plays a vital role in refinery efficacy…
The process of selecting a location to establish a modular refinery is just as intricate as designing one. Of the numerous factors and conditions to consider when siting a modular refinery, crude oil sourcing plays a vital role in refinery efficacy…
The process of selecting a location to establish a modular refinery is just as intricate as designing one. Of the numerous factors and conditions to consider when siting a modular refinery, crude oil sourcing plays a vital role in refinery efficacy…
With the increasing number of horizontal wells with low pressure, low yield, and water production, the phenomenon of water and liquid accumulation in gas wells is becoming progressively more serious. In order to fix these issues, it is necessary to…
The gas reserves off the East coast of Trinidad contain a significant proportion of gas condensate fluids. When these fluids are produced to surface, the components can be separated by fractionation into gas and liquid fractions at the surface…
In order to study a potential way to store CO2 and enhance heavy oil production performance, five experiments are implemented on the CO2 huff n puff process using long cores. The production profiles of the CO2 huff n puff process are analyzed,…
Oil-water dispersed flow is one of the basic flow patterns of oil-water pipe flows, droplet is the most important character. This study aims to acquire the relationships between droplet size and different flow parameters such as mixture flow rate,…
With the increase of oil exploitation, the transportation of heavy oil with higher viscosity has received more and more attention. Based on the self-designed two-phase flow water annular transport heavy oil experimental system, the water annular…
The effects of the types and contents of surfactants, alkali types and concentrations, oil-water ratios, mixing speeds, and emulsifying temperatures on the rheology of heavy oil-in-water (O/W) emulsions were studied. The experimental results showed…