Search all articles

Many hydrocarbon explorations in mature fields have been severely affected by complex and overburdening issues, such as shallow gas accumulation, gas pockets, and gas seepage. In this work, a new forward modelling technique is proposed in evaluating the potential survey design for fields affected by...

Time-difference method is a vitally significant algorithm for measuring natural gas flow with ultrasonic gas flowmeter. The key of this algorithm is to accurately measure the arrival time of ultrasonic signal. However, it is difficult to determine the feature points corresponding to the arrival time...

This paper illustrates a low energy consumption and high accuracy WSN (wireless sensor network) that provides an intelligent gas inspecting system in coal mines, which offsets the shortage of mine cable monitoring system. The substation of coal mine gas inspecting system was designed by CC2530 SOC that...

Monosodium glutamate (MSG) wastewater is a very refractory case of high strength organic wastewater. To investigate the effect of operating variables on treatment of MSG wastewater, a laboratory scale study was conducted. The treatment of MSG wastewater was studied by UASB-A/OMBR process. The effect...

The national carbon market trading is about to go live. This paper mainly explores the problems and some personal opinions that the carbon emission right market has exposed after ten years of experience in the pilot based on the dual disciplines of law and economics. According to China’s national conditions,...

In this paper, a measurement system with the near infrared spectrum technique is introduced. The experimental pipeline is designed for the stainless steel pipe which can reduce the interference of external light and have the four groups of measuring device. While the data are collected by high frequency...

Shale gas as an increasingly important form of hydrocarbon energy raises natural gas occupancy and reduces carbon emission in North American, attracting more and more focus all over the world. The main purpose of this paper is to identify the differences in cooperation network in shale gas research and...

The T106 axial turbine series is used extensively by major engine manufacturers, because of its ability to give the best performance at low pressure conditions. However, it has high secondary flow development. The present work aims at understanding the effect of high gas velocities and high temperatures...

Through the analysis of the Putaohua oil layer of Xingnan area’s geological information, sums up the fault form in section and the main form in the plane. Analyze the influence of different fracture dense belt for oil and gas migration and enrichment of sand body ,and controlling action on hydrocarbon...

A plug-in electrostatic sensor simulative model was built through COMSOL Multiphysics simulation software. The sensitivity distribution on the center section of a plug-in electrostatic sensor was simulated and investigated. Through comparing different sensitivity distribution under the conditions of...

Combined rotor is the core part of gas turbine and works in high temperature and high rotating speed environment in a long-term,creep bending of the combined rotor will make great effects on the gas turbine’s performance. To study the creep bending properties of gas turbine’s combined rotor considering...

Based on the "Hubei Provincial Statistical Yearbook" in 1990 - in 2013 the relevant data to do statistical analysis, using DPS software gray correlation analysis and Kuznets curve (Kuznets curve) in support of SPSS software analysis to Hubei Hubei Province, in recent years, economic development and resources...

The Chinese economy is developing rapidly, the demand for energy is getting more and more intense. With the development of coal mine, the utilization of gas is getting more and more important, and the numerous gas generating units will be connected to the power grid. Due to the characteristics that the...

This paper describes a kind of smart home control system. The system can intelligently adjust the indoor environment, according to the temperature and humidity, the light intensity, the combustible gas levels and other parameters. The smart home control system can intelligently control household appliances...

Transmission pipelines carrying natural gas across long distances often work at high pressures (up to 10 MPa). The high-pressure natural gas is regulated though a throttling device, which results in much waste of pressure energy. Meanwhile, more pressure reducing stations exist the problem of no electric...

The procurement decision problem of divisible goods is investigated, and an optimization decision method for procuring a kind of divisible goods (such as coal, oil, electricity, gas, etc.) is presented based on multi-attribute auction. Firstly, the procurement decision problem of divisible goods is converted...

In response to the national development requirements and the people's desire for a low-carbon society, more and more enterprises have joined the work of carbon emission reduction. This paper use the whole life cycle assessment (LCA) method to analysis the carbon footprint of power cable. We use...

With the development of the society, oil and coal resources gradually reduce, as a sustainable, renewable energy, the development of biomass energy became the inevitable trend to save resources and protect the environment. At present, Biomass energy is rapidly developing in the paper-making, power, gas...

The types of internal fault and their influencing factors in GIS are analyzed. The key technologies and researching results of UHF, ultrasound and SF6 decomposition method on site for GIS internal fault detecting are presented, compared with each other and analyzed. The methods of fault location and...

In recent years, under pressures of the global energy crisis and climate change, shale gas(SG) was widely concerned as a relatively clean source of energy. One of the widely used technologies to exploit SG is hydraulic fracturing, which consumes a large amount of fresh water, pollutes water environment,...

The method of uncertainty evaluation of determination of toluene in room air has been established. Gas chromatography with thermal desorption was used for determining of toluene. The main factors which can affect on the analytical results were identified. The measurement repeatability, standard solution...

At present, Selective Catalytic Reduction (SCR) flue gas denitrification process has been widely used in coal power plants in China. Catalyst is the core of SCR denitrification system. Because of the influence of the fly ash, erosion and chemical poisoning, the catalyst activity can be reduced gradually,...

This paper proposes using engine’s sensors data flow and exhaust emissions information to diagnose engine’s faults, enhancing the accuracy of fault diagnosis. Engine fault diagnosis model is built using both this information and the mature BP neural network and genetic algorithms. In order to verify...

Background: The MOMENTUM3 trial1 has revealed superiority of the novel HeartMate3 (HM3) left ventricular assist device (LVAD) compared with the HM2, with a significantly reduced occurrence of cerebrovascular accidents. Thus, cerebral autoregulation may be improved in HM3 compared with HM II patients,...

The phenomenon of "low-resistivity" gas reservoir and "high-resistivity" water reservoir exist side by side, rapid changes of longitudinal resistivity of the water reservoir and gas and water mixed reservoir in the Su 54 area of Sugeli gas field which caused gas-water identification difficulty. First,...

This paper introduces the overview of GIS system development, composition, and the importance of building GIS systems, objectives, functions, role. And further describes the GIS system in the gas industry and application.

Coal bed gas is gradually becoming an alternative choice as well as a clean energy for people’s live.Bo Li basin is rich in gas and it is the only district of the Northeast Mesozoic marine deposit of our nation,created favorable conditions for the formation of coal bed gas.Meanwhile, the coal bed gas...

The article provides a general overview of BP’s hedging policy. We analyze how the company hedges risks and risks the company hard to hedge. BP is a multinational oil and gas company, the main risks in the area of swapping the economic exposure and managing its normal business exposures. Based on analyzing...

Silica gel has a potential ability to adsorb water vapor and contaminant together, so it has been focused recently in indoor air environment. In this paper, the performance of silica gel adsorbing trace gas pollutions in isothermal column is studied through theoretical methods. The model of the adsorption...

The plan and usage of a smart power management system for household and buildings that control numerous electrical appliances in real time have been reported in this work. The system is based on using artificial intelligence with low-cost single board computer in order to design a smart power management...

Yanchang group of southeastern Ordos basin are tight oil accumulation conditions of the research degree is low, the tight oil exploration has not obtained the big breakthrough. To evaluate tight oil exploration prospect of southeastern basin Yanchang group, through to the sedimentary, reservoir, cap...

Due to the reopening and remarkable recovery of the global economy from the epidemic, as well as the increased mobility of people under higher vaccination rates, 2021 has been a year of significant recovery for both supply and demand of crude oil Since the shortage of natural gas has fuelled a widespread...

As the installed base of substation equipment continues to grow, the capacity of primary equipment increases, and operating lifetimes extend, traditional maintenance-centered and periodic management approaches are no longer able to meet the combined requirements of fault-risk control, outage consequence...

A novel and universal computational method for obtaining the dynamic stiffness and damping coefficients of the fixed-tilting pad mixture bearing used in heavy-duty gas turbine is given, then the effects of bearing parameters such as eccentricity and perturbation frequencies on those dynamic coefficients...

As a widely used finite difference software in coal mine research, FLAC3D is applied with to simulate the deforming course of coal body around spraying hole induced by waterpower. The results are appealing and instructive for optimization of gas drainage holes in outburst mine. Two core simulating distribution...

With climate change increasingly spreading its negative impact in the world, it is important to do what is needed to resolve this issue. The discovery and application of renewable energy sources have been considered to be an alternative to burning the entirety of fossil fuels and other non-renewable...

Due to the problem of reforming the reactor, the original supporting column at the outlet of the equipment has a negative influence on the uniformity of the flue gas. In this paper, CFD simulation technology is used to simulate the smoke movement at the outlet of the denitration reactor, using the standard...

Tunable diode laser absorption spectroscopy (TDLAS) technology has the characteristics of high sensitivity, selectivity and rapid response. The tunable and narrow linewidth of semiconductor lasers are used in this technique to realize the rapid and accurate online detection of target gas concentration,...

As one of the effective measures to reduce greenhouse gas emissions, the carbon trading mechanism has received increasing attention from countries around the world and has made significant development. This paper reviews the emergence and the development of carbon emissions permit trading and compares...

The oxygen blast furnace (OBF) is a new ironmaking technology. The coke rate and carbon dioxide emission can be decreased greatly in the OBF process. In the OBF process, the room-temperature oxygen is blown and the preheated top gas of CO₂ stripped is recycled into the furnace. The recycled gas has various...

‘Peak Carbon Dioxide Emission’ and ‘Carbon Neutrality’ are the carbon emission reduction targets set by China to deal with major climate problems caused by the rise of global greenhouse gases. This paper takes carbon finance markets as the research object and selects the daily data of carbon trading...

The flue gas compression system in a 300MW oxy-coal fired boiler unit is taken as an object of study. By the leakage test of quad-section rotary gas-gas preheater on B-MCR condition, the influence from the leakage on the operation parameters of the flue gas compression system were analyzed. The results...

As one of the most dominant asset pricing models in the field of finance, the Capital Asset Pricing Model (CAPM) is frequently used to assess the risk and expected return in project finance. Yet, this mathematical model is still lacking in studies in the field of energy commodities. In this paper, the...

Electrospun fibers with many advantages such as nano-structure, large specific surface area, high porosity, have been widely applied in the field of sensors. This paper mainly introduces latest development of electrospun fiber applications in biosensors, gas sensors and metal ion sensors. Biosensors...

Study of the methane-air explosion mechanism is of great important for the safety utilization of the coal bed methane and safety production of coal mine. The methane-air explosion reactions were numerical simulated in a closed spherical 20 dm3 vessel with the ignition electrode at the center. The simulation...

The probe and measurement circuit for the liquid level measurement of ultra low temperature cylinder was designed. Liquid Nature Gas( LNG) sensor is a coaxial capacitance sensor which was used with the material of 304 stainless steel. Teflon was used as an insulating material to isolate the stainless...

The exhaust flue gas cooler in a 300MW oxy-coal fired boiler is taken as an object of study. The simulation model of the cooler was established by the method of lumped parameter. The change rule of the exhaust flue gas cooler parameters and the flue gas thermal physical property parameters were analyzed...

Advancement of innovative trends in the development of the Russian economy under current geopolitical and economic conditions is the only way for the Russian enterprises to preserve and hold favorable positions on the home and international markets. In order to improve the current situation and pass...

Standalone multi-element complementary microgrid plays a very important role in solving the electricity problems of many areas, which are rich in renewable energy but have problems in the power supply of traditional power grid. To ensure the reliability of power supply while improving overall economic...

Surface(Rayleigh)wave are induced at solid-gas or solid-liquid interfaces, when the probe is at the second critical angle setting; The surface wave profile is mainly transverse and so the surface wave is approximately a shear wave at its critical angle. The variation of sound velocities with frequency...