Natural gas generation model and its response in accumulated fluids in the Yinggehai basin

2003 ◽  
Vol 46 (11) ◽  
pp. 1089 ◽  
Author(s):  
Fang HAO
Keyword(s):  
Natural Gas ◽  
Generation Model ◽  
Gas Generation ◽  
Yinggehai Basin

scholarly journals New Insight into the Kinetics of Deep Liquid Hydrocarbon Cracking and Its Significance

Geofluids ◽  
2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Wenzhi Zhao ◽  
Shuichang Zhang ◽  
Bin Zhang ◽  
Kun He ◽  
Xiaomei Wang
Keyword(s):  
Natural Gas ◽  
Liquid Hydrocarbon ◽  
Numerical Calculations ◽  
Source Rocks ◽  
Generation Model ◽  
Liquid Hydrocarbons ◽  
Gas Generation ◽  
Hydrocarbon Cracking ◽  
Kinetic Calculations ◽  
Total Oil

The deep marine natural gas accumulations in China are mainly derived from the cracking of liquid hydrocarbons with different occurrence states. Besides accumulated oil in reservoir, the dispersed liquid hydrocarbon in and outside source also is important source for cracking gas generation or relayed gas generation in deep formations. In this study, nonisothermal gold tube pyrolysis and numerical calculations as well as geochemical analysis were conducted to ascertain the expulsion efficiency of source rocks and the kinetics for oil cracking. By determination of light liquid hydrocarbons and numerical calculations, it is concluded that the residual bitumen or hydrocarbons within source rocks can occupy about 50 wt.% of total oil generated at oil generation peak. This implies that considerable amounts of natural gas can be derived from residual hydrocarbon cracking and contribute significantly to the accumulation of shale gas. Based on pyrolysis experiments and kinetic calculations, we established a model for the cracking of oil and its different components. In addition, a quantitative gas generation model was also established to address the contribution of the cracking of residual oil and expulsed oil for natural gas accumulations in deep formations. These models may provide us with guidance for gas resource evaluation and future gas exploration in deep formations.

scholarly journals Emissions Effects of Energy Storage for Frequency Regulation: Comparing Battery and Flywheel Storage to Natural Gas

Energies ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 549
Author(s):  
Eric Pareis ◽  
Eric Hittinger
Keyword(s):  
Energy Storage ◽  
Natural Gas ◽  
Fossil Fuels ◽  
Storage Systems ◽  
Storage System ◽  
The United States ◽  
Frequency Regulation ◽  
So2 Emissions ◽  
Gas Generation ◽  
Electrical Generation

With an increase in renewable energy generation in the United States, there is a growing need for more frequency regulation to ensure the stability of the electric grid. Fast ramping natural gas plants are often used for frequency regulation, but this creates emissions associated with the burning of fossil fuels. Energy storage systems (ESSs), such as batteries and flywheels, provide an alternative frequency regulation service. However, the efficiency losses of charging and discharging a storage system cause additional electrical generation requirements and associated emissions. There is not a good understanding of these indirect emissions from charging and discharging ESSs in the literature, with most sources stating that ESSs for frequency regulation have lower emissions, without quantification of these emissions. We created a model to estimate three types of emissions (CO2, NOX, and SO2) from ESSs providing frequency regulation, and compare them to emissions from a natural gas plant providing the same service. When the natural gas plant is credited for the generated electricity, storage systems have 33% to 68% lower CO2 emissions than the gas turbine, depending on the US eGRID subregion, but higher NOX and SO2 emissions. However, different plausible assumptions about the framing of the analysis can make ESSs a worse choice so the true difference depends on the nature of the substitution between storage and natural gas generation.

scholarly journals Municipal Solid Waste Characterization and Landfill Gas Generation in Kakia Landfill, Makkah

2021 ◽  
Vol 13 (3) ◽  
pp. 1462
Author(s):  
Faisal A. Osra ◽  
Huseyin Kurtulus Ozcan ◽  
Jaber S. Alzahrani ◽  
Mohammad S. Alsoufi
Keyword(s):  
Solid Waste ◽  
Energy Recovery ◽  
Solid Waste Management ◽  
Landfill Gas ◽  
Drainage System ◽  
Solid Wastes ◽  
Generation Model ◽  
Gas Generation ◽  
Municipal Solid Wastes ◽  
Makkah City

In many countries, open dumping is considered the simplest, cheapest, and most cost-effective way of managing solid wastes. Thus, in underdeveloped economies, Municipal Solid Wastes (MSW) are openly dumped. Improper waste disposal causes air, water, and soil pollution, impairing soil permeability and blockage of the drainage system. Solid Waste Management (SWM) can be enhanced by operating a well-engineered site with the capacity to reduce, reuse, and recover MSW. Makkah city is one of the holiest cities in the world. It harbors a dozen of holy places. Millions of people across the globe visit the place every year to perform Hajj, Umrah, and tourism. In the present study, MSW characterization and energy recovery from MSW of Makkah was determined. The average composition of solid waste in Makkah city is organic matter (48%), plastics (25%), paper and cardboard (20%), metals (4%), glass (2%), textiles (1%), and wood (1%). In order to evaluate energy recovery potential from solid waste in Kakia open dumpsite landfill, the Gas Generation Model (LandGEM) was used. According to LandGEM results, landfill gas (methane and carbon dioxide) generation potential and capacity were determined. Kakia open dump has a methane potential of 83.52 m3 per ton of waste.

Using natural gas generation to improve power system efficiency in China

Energy Policy ◽  
2013 ◽  
Vol 60 ◽  
pp. 116-121 ◽  
Author(s):  
Junfeng Hu ◽  
Gabe Kwok ◽  
Wang Xuan ◽  
James H. Williams ◽  
Fredrich Kahrl
Keyword(s):  
Natural Gas ◽  
Power System ◽  
System Efficiency ◽  
Gas Generation

scholarly journals Further discussion on the connotation and significance of the natural gas relaying generation model from organic matter

2011 ◽  
Vol 38 (2) ◽  
pp. 129-135 ◽  
Author(s):  
Wenzhi Zhao ◽  
Zhaoyun Wang ◽  
Hongjun Wang ◽  
Yongxin Li ◽  
Guoyi Hu ◽  
...  
Keyword(s):  
Organic Matter ◽  
Natural Gas ◽  
Generation Model

Research on the Natural Gas Enrichment Regularity of Es1 Layer in Yangxin Subsag of Jiyang Depression

2013 ◽  
Vol 734-737 ◽  
pp. 147-151
Author(s):  
Bo Zhang ◽  
Wen Tao Li ◽  
Zhi Hong Gan
Keyword(s):  
Natural Gas ◽  
Source Rock ◽  
Sedimentary Environment ◽  
Southern Slope ◽  
Gas Generation ◽  
Biological Origin ◽  
Gas Source ◽  
Gas Formation ◽  
Reservoir Development ◽  
Preservation Condition

Natural gas resource of Es1 layer in Yangxin subsag is very abundant. Natural gas formation, enrichment conditions and regularity are analyzed in this paper. Geochemistry analysis shows that natural gas resource of Es1 layer in Yangxin subsag belongs to biological origin gas. The sedimentary environment, ground temperature, gas source rock and preservation condition of the study area is advantageous, which provide a guarantee for natural gas generation and preservation. Research shows that natural gas enrichment in the lower part of Es1 layer because of limestone reservoir development, and on the horizontal direction natural gas is mainly enrichment in the eastern nose structure zone and southern slope zone. The both zones are the preferred zone for natural gas exploration in the study area.

scholarly journals Willingness to Pay for Wind versus Natural Gas Generation of Electricity

2018 ◽  
Vol 48 (1) ◽  
pp. 44-70
Author(s):  
Kofi Nkansah ◽  
Alan R Collins
Keyword(s):  
Renewable Energy ◽  
Natural Gas ◽  
West Virginia ◽  
Willingness To Pay ◽  
Wind Energy ◽  
Choice Experiment ◽  
Energy Use ◽  
Gas Generation ◽  
Alternative Policy ◽  
Per Capita

In 2009, West Virginia enacted an Alternative and Renewable Portfolio Act (APRA) to broaden its energy use for electricity beyond coal. A choice experiment survey was conducted to assess West Virginians’ willingness to pay (WTP) for 10 percent of electricity generated from wind energy versus natural gas. Results showed that residential consumers preferred electricity generated from wind, with annual per-capita WTP averaging from $19.25 to $26.75. Given the subsequent repeal of the APRA in 2015, we propose implementation of a voluntary green pricing program as an alternative policy to increase the share of renewable energy in West Virginia's energy portfolio.

Sign in / Sign up

Export Citation Format

Share Document