The deep-water gas field in the South China Sea has been officially put into operation, but due to the strong energy of the bottom water in the offshore gas field, the production well is prone to water flooding, resulting in a serious decline in gas…
As the main tool to realize data mining and efficient knowledge acquisition in the era of big data, machine learning is widely used in data center energy-saving research. The temperature prediction model based on machine learning predicts the state…
Efficient cleanup of viscous crude oil spill is a worldwide challenge due to its sluggish flowability at room temperature. Conventional oil remediation methods using physical absorbers, skimmers, and vacuum technologies either demonstrate low…
Energy storage is a critical issue and it becomes increasingly vital due to rapidly diminishing of fossil fuels and as renewable energy resources are currently intermittent. The thermal energy storage is the dawn of thermal management field. The lack…
Phase change materials (PCMs) have received substantial interest for their ability to store and release latent heat for energy conservation and thermal control purposes. PCMs are available in a variety of latent heat and melting points but their…
The micro-encapsulated phase change materials could be used for thermal storage and temperature regulation, which solved the energy mismatch in space and time, and the utilization rate of energy has been greatly improved. Thus, recently, the…
Latent heat storage using metals as solid-liquid phase change materials (PCMs) have been concerned for medium-temperature thermal energy storage. However, due to the leakage and corrosion problems during phase transformation, the use of metallic PCMs…
Cellulose derivatives are widely applied in the field of oil and gas exploration. However, this kind of natural polymers always shows poor temperature resistance due to their organic nature. To improve the temperature resistance of hydroxyethyl…
Logging tools detecting underground oil and gas resources face a high temperature environment of 200. The downhole electronics are unable to bear such a high-temperature environment and thus require thermal management. For the multi-heat-source…
The authors develop a small and simple steam-reforming reactor in a home-use size for such various heavy-hydrocarbons fuels as n-octane, n-decane, n-tetradecane, and n-hexadecane in addition to n-dodecane and measure the inside-temperature profile…
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…
Experimental evaluation of the active fault tolerant control scheme developed with state space models (innovations form) identified purely from input-output data is carried out in the present work. A key problem in fault diagnosis with identified…
For the complex industry, this paper proposes a flexible predictive control method based on the expert system, using the expert experience to change the structure and parameters of a predictive controller. Detailed procedures are provided to…
This paper investigates the multi-objective optimal operation problem of an integrated energy system (IES) which integrates grid-connected photovoltaic (PV) generator, gas boiler, battery energy storage system, and thermal storage to satisfy energy…
In the underwater crude oil storage system which adopts oil-water separation method, in order to keep the oil fluid, make the oil storage and transport running smoothly, the oil temperature control becomes a crucial consideration. Measuring…
Through analyzing experimental data in oilfield, threshold temperature and pressure of lowered temperature and gathering-transportation technology were determined in Daqing Putaohua Oilfield, and then a set of control software was compiled in order…
In the underwater crude oil storage system which adopts oil-water separation method, in order to keep the oil fluid, make the oil storage and transport running smoothly, the oil temperature control becomes a crucial consideration. Measuring…
It is demonstrated that a depropanizer distillation column can be controlled by a distributed control system coupled with product analyzers with a four-minute cycle time in an industrial environment. The primary objective of the control schemes is to…
The measurement and control system for a midstream plant differs from the downstream system. Flexible control and communication systems are required for the oil production wells in this type of plant. A specific measurement system is provided from…
Sulfur transmission lines have been a continual challenge to the industry because of both the upper and lower temperature limits that are necessary for sulfur product quality. To pump the sulfur a minimum temperature is needed, but if heated to an…
Experimental evaluation of the active fault tolerant control scheme developed with state space models (innovations form) identified purely from input-output data is carried out in the present work. A key problem in fault diagnosis with identified…
For the complex industry, this paper proposes a flexible predictive control method based on the expert system, using the expert experience to change the structure and parameters of a predictive controller. Detailed procedures are provided to…
The increased focus on LNG as a vital part of the energy equation around the world has resulted in the development of new concepts for the export, reception, storage, and vaporization of LNG. The offshore located gravity based structures…
In the underwater crude oil storage system which adopts oil-water separation method, in order to keep the oil fluid, make the oil storage and transport running smoothly, the oil temperature control becomes a crucial consideration. Measuring…
There is lack of performance monitoring technologies and related standards and specifications in the Puguang Gas Field, which is ultra deep with high sulfur content. In this paper, five key technologies of dynamic monitoring were developed and the…
The vapors produced from pine wood using an intermediate auger pyrolysis process under various sweeping gas flow rates were condensed by three temperature-controlled condensers and analyzed. Increasing sweeping gas flow rate from 20 to 40 L/min did…
Underwater oil storage is a new offshore oil drilling technique developed in recent years. Because of the high pour point, crude oil condensation will affect its storage and transportation. In order to solve this problem, a set of thermal insulation…
Based on the assumption that waxy crude oil is deemed as the porous medium system under the temperature of losing flow point, the additional specific heat capacity method is used to describe the wax crystallization heat, and the momentum source term…
By means of finite volume method, the heat transfer characteristic of crude oil under the tubular heating in the floating roof tank is investigated by numerical simulation. The evolution of temperature profile and its relationship with the flow…
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 assumption that waxy crude oil is deemed as the porous medium system under the temperature of losing flow point, the additional specific heat capacity method is used to describe the wax crystallization heat, and the momentum source term…
By means of finite volume method, the heat transfer characteristic of crude oil under the tubular heating in the floating roof tank is investigated by numerical simulation. The evolution of temperature profile and its relationship with the flow…
Due to the effects of heightened warming in the Arctic, there has been an urgency to develop methods for detecting oil in (or under) sea ice, owing to the increasing potential for oil exploration and ship traffic in the more accessible Arctic…
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…
Efficient cleanup of viscous crude oil spill is a worldwide challenge due to its sluggish flowability at room temperature. Conventional oil remediation methods using physical absorbers, skimmers, and vacuum technologies either demonstrate low…
Some stations in the gas transportation system experience a decrease in natural gas (NG) pressure. The drop in pressure occurs in the regulators and causes the temperature to drop so that the gas must be preheated to prevent it from freezing. The…
Temperature is one of the main effects on design, installation, and operation in the natural gas flow pipelines. For example, it is used to calculate the installation position of in-line heaters to prevent equipment freezes. The prediction of an…
This paper presents an experimental investigation into the flow rate of natural gas released underwater from a pipe orifice and the associated combustion behavior on the water surface in an aerodynamic channel. A stainless-steel pipeline with a…