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.…
In order to calculate the wax deposition rate of crude oil pipelines and discuss its regularity, a pseudo-three-dimensional wax deposition numerical model was established based on computational fluid dynamics and heat transfer theory. The model…
A solution to increase the use of natural gas in U.S. is to convert existing diesel engines to natural-gas spark-ignition operation through the addition of a gas injector in the intake manifold and of a spark plug in place of the diesel injector.…
The process of operating volatile oil wells using the sucker rod pumping method is considered. An algorithm is developed to determine the main characteristics of the development of deposits in the oil wellreservoir system and the parameters of sucker…
A new geothermal energy-assisted natural gas hydrate recovery method (GEAN) that can simultaneously exploit geothermal energy and natural gas hydrates (NGHs) by injecting water into a geothermal heat exchange well was proposed in this paper. GEAN…
Based on Euler-Lagrange multi-phase flow numerical simulation method, the single hole and multi-hole throttling process of the highly compressed natural gas was studied by using the RNG k- turbulent model, the Sutherland Viscosity Law compressible…
As a new unconventional clean energy, natural gas hydrate has attracted attention in recent years. In marine natural gas hydrate reservoir drilling, hydrate cuttings will return upward in annulus. In this process, hydrate cuttings will decompose…
In this paper, the model of low temperature fractionation CO2 capturing process is established with HYSYS to carry out the simulation of the process. According to the simulation results, it is concluded that as the CO2 content in the feed gas raises,…
Underground petroleum storage caverns with the containment of groundwater is one of the methods for storage of petroleum. In the construction process of large water sealing petroleum storage caverns, the appearance of engineering excavation changes…
In recent years, due to the reduction of the amount of raw material gas and the change of equipment parameters, the liquefied natural gas recovery rate is reduced. According to the existing problems, the system needs to be optimized to improve the…
By means of additional specific heat capacity and momentum source terms methods, the heat transfer characteristic of waxy crude oil during the gelatinization process in the floating roof tank is investigated by numerical simulation. A new kind of…
Based on the established physical and mathematical models for the thermal system coupled by crude oil, pipeline and soil, the thermal characteristics of crude oil pipeline during its consecutive process from shutdown to restart are investigated. Some…
Inferential analysis using neural network technology is proposed for an existing crude fractionation section of an oil refinery. Plant data for a three month operation period is analyzed in order to construct various neural network models using a…
This article presents the simulation and hydraulic assessment of the Sarir field - Tobruk terminal pipeline. The pipeline transports crude oil from Sarir field in the South East of the Libyan Sahara desert to the Tobruk terminal in the East of the…
This study considers the simulation of the pipeline that transports crude oil from Sarir field in the South East of the Libyan Sahara desert to the Tobruk terminal which is located in the East of the Libyan coast. The VariSim pipeline simulation…
There are two different methods used to store oil in ocean engineering. One method is "dry" storage, which consists of storing the oil in a dry tank within the hull. This is the current method used in offshore production systems such as FPSOs. The…
Superconducting energy pipeline (SEP) is a new type of electrical energy transmission. It contains high‐temperature superconducting cables and liquefied natural gas pipelines and can simultaneously transmit electricity and liquefied natural gas…
Natural gas hydrate inhibitor has been serving the oil and gas industry for many years. The development and search for new inhibitors remain the focus of research. In this study, the solution polymerization method was employed to prepare poly(N-vinyl…
Two-phase flow in pipeline network plays a significant role in the gathering system of the offshore natural gas-condensate field. However, the study of the transient numerical simulation of pipeline network is insufficient for flow assurance.…
Siting a new underground water-sealed crude oil storage adjacent to an existing one is a potential way to increase the capacity of strategic energy storage. The study presented herein is a comprehensive case study to assess the water-sealed safety on…
There are two different methods used to store oil in ocean engineering. One method is "dry" storage, which consists of storing the oil in a dry tank within the hull. This is the current method used in offshore production systems such as FPSOs. The…
In order to explore the motion law of oil spill to conduct cleaning, simulation for submarine oil spill based on wave motion is carried out by user defined function and volume of fluid in FLUENT, and the dispersion and diffusion of oil spill in deep…
A new collision model was put forward by Munnannur, which can be used to predict characteristics of unstable binary droplet collisions. However, the energy dissipation coefficient and breakup parameter in original model were unchanged, which cut down…
During the operation process of heated oil transportation pipelines, shutdown accidents may be caused by some faults. In view of hydraulic and thermodynamic characteristics, the transient simulation model of heated oil pipelines is established based…
According to the increasing fuel consumption in transportation section and due to environmental considerations, "cars' gaslight changing plan" is very significant. So, "Iran's CNG Stations Locationing Masterplan" was defined to improve the planning…
To forecast the thermal response of LPG ( liquefied petroleum gas ) storage tank under the conditions of a non-normal thermal environment is of great practical significance to the evaluation of gas storage and transportation security, especially on…
This article presents the simulation and hydraulic assessment of the Sarir field - Tobruk terminal pipeline. The pipeline transports crude oil from Sarir field in the South East of the Libyan Sahara desert to the Tobruk terminal in the East of the…
This study considers the simulation of the pipeline that transports crude oil from Sarir field in the South East of the Libyan Sahara desert to the Tobruk terminal which is located in the East of the Libyan coast. The VariSim pipeline simulation…
Murine crude oil transportation is the main mode of China's import oil transportation. Marine crude oil storage and transportation is a high-risk operation process.The risk of oil storage and transportation mainly comes from the volatilization of oil…
Inferential analysis using neural network technology is proposed for an existing crude fractionation section of an oil refinery. Plant data for a three month operation period is analyzed in order to construct various neural network models using a…
Plug-in hybrid electric vehicles (PHEVs) differ from hybrid electric vehicles (HEVs) with their ability to use off-board electricity generation to recharge their energy storage systems. In addition to possessing charge-sustaining HEV operation…
To forecast the thermal response of LPG ( liquefied petroleum gas ) storage tank under the conditions of a non-normal thermal environment is of great practical significance to the evaluation of gas storage and transportation security, especially on…
Murine crude oil transportation is the main mode of China's import oil transportation. Marine crude oil storage and transportation is a high-risk operation process.The risk of oil storage and transportation mainly comes from the volatilization of oil…
FLNG is a floating production equipment which integrates the functions of offshore natural gas production, processing, liquefaction, storage and handling.Sour gas removal is a key step in the process of natural gas liquefaction. The gas-liquid…
In-situ recovery of oil from oil shale using the convection heating method requires a hydraulic fracturing process to provide transportable channels for thermal carriers and shale oil and gas released by oil-shale pyrolysis. However, flowing…
In this paper, the model of low temperature fractionation CO2 capturing process is established with HYSYS to carry out the simulation of the process. According to the simulation results, it is concluded that as the CO2 content in the feed gas raises,…
In recent years, due to the reduction of the amount of raw material gas and the change of equipment parameters, the liquefied natural gas recovery rate is reduced. According to the existing problems, the system needs to be optimized to improve the…
A number of methods of implementing the fractionation stage in a reaction-fractionation column - from the version of a distillation column to a complete column with side takeoff of the target product and different versions of feedstock input…
The stable carbon isotope values of coalbed methane range widely, and also are generally lighter than that of gases in normal coal-formed gas fields with similar coal rank. There exists strong carbon isotope fractionation in coalbed methane and it…
Persistent gas flux can dissolve, remobilize and alter reservoired or migrating oil through a process of phase fractionation. Moving gas, when flowing through an oil, can dissolve large fractions of that oil. The composition of the oil dissolved in…
Supercritical fluid extraction and fractionation was used to prepare narrow-cuts from a variety of petroleum vacuum residua. The narrow-cuts were subjected to comprehensive characterization and solubility class separation into saturates, aromatics,…
Inferential analysis using neural network technology is proposed for an existing crude fractionation section of an oil refinery. Plant data for a three month operation period is analyzed in order to construct various neural network models using a…
There are two different methods used to store oil in ocean engineering. One method is "dry" storage, which consists of storing the oil in a dry tank within the hull. This is the current method used in offshore production systems such as FPSOs. The…
Triaxial compression tests had been performed to determine the properties of the rock mass around unlining underground crude oil a storage cavern which was the first one in China. The execution situation of the tunnel project and the seepage law of…
With the increase in demand for oil storage,the scale of tanks are developing towards the direction of large scale and better adaptability to extreme working conditions. The change of oil temperature field inside the tank should be accurately…
One of the important scientific issues for the construction of underground storage caverns is the assessment of containment properties of the caverns. It is aimed to develop a system of methods for the assessment of containment properties of the…
Steam is widely used to enhance heavy oil recovery, whereas it is implemented as just an auxiliary thermal source when treating oily sludge. In this study, steam jet was for the first time introduced to simultaneously reclaim and purify oil from…