Results 31 to 40 of about 6,866 (241)

Numerical Simulation of Gas Production and Reservoir Stability during CO₂ Exchange in Natural Gas Hydrate Reservoir

Energies, 2022
The prediction of gas productivity and reservoir stability of natural gas hydrate (NGH) reservoirs plays a vital role in the exploitation of NGH. In this study, we developed a THMC (thermal-hydrodynamic-mechanical-chemical) numerical model for the ...
Qingping Li, Shuxia Li, Shuyue Ding, Zhenyuan Yin, Lu Liu, Shuaijun Li   +5 more
doaj   +1 more source

Cooling-Induced Depressurization of a Steam-Filled Chamber

, 2011
Depressurization can be realized by condensing saturated vapor of a pure substance inside a confined chamber. The depressurization rate depends directly upon the effectiveness of cooling to the condensing vapor.
Chao-Hsin Lin, Chao Zhu, Pengfei He, Rajesh Patel   +3 more
core   +3 more sources

Modeling of the Frictional Behavior at the Contact Surface between the Different Materials Constituting Methane Hydrate Production Well

Journal of MMIJ, 2018
Depressurization process is regarded as the most effective process for gas recovery method from the viewpoints of gas productivity and economic efficiency among in-situ dissociation processes of Methane Hydrate (MH) existing in marine sediments. However,
Masayo KAKUMOTO, Yasuhide SAKAMOTO, Kuniyuki MIYAZAKI, Kazuo AOKI, Akira TAKIGUCHI, Aya YASUI, Jiro MORI   +6 more
doaj   +1 more source

An Experimental Investigation of Feasibility of Gas Huff and Puff for Recovering Crude Oil with Different Viscosities [PDF]

Journal of Petroleum Science and Technology, 2017
Investigating multi cyclic gas (N2 and CO2) huff and puff have been conducted by long sandpack simulations with four different crude oils from Jiangsu oilfield.
Jiang Ping, Zhang Lei, Ge Jijiang, Zhang Guicai, Yuan Yufeng, Wang Yang, Pei Haihua   +6 more
doaj   +1 more source

Numerical Investigation of Hydrate Dissociation Performance in the South China Sea with Different Horizontal Well Configurations

Energies, 2014
Based on the available measurement data and literature on the hydrate deposits of the South China Sea, a numerical simulation with a new dual horizontal well system has been carried out.
Jing-Chun Feng, Xiao-Sen Li, Gang Li, Bo Li, Zhao-Yang Chen, Yi Wang   +5 more
doaj   +1 more source

Numerical Simulation of Gas Production Behavior Using Stepwise Depressurization with a Vertical Well in the Shenhu Sea Area Hydrate Reservoir of the South China Sea

Journal of Marine Science and Engineering
Stepwise depressurization is an important depressurization strategy in the development of natural gas hydrates. This work numerically analyzes the effects of different depressurization gradients and constant pressure durations on gas and water production
Tinghui Wan, Zhanzhao Li, Hongfeng Lu, Mingming Wen, Zongheng Chen, Lieyu Tian, Qi Li, Jia Qu, Jingli Wang   +8 more
doaj   +1 more source

Evolution law of physical parameters and hydrate reservoir productivity under multi-stage depressurization

Petroleum
In the process of gas hydrate depressurization production, the reasonable depressurization rhythm and depressurization amplitude have significant impact on improving production and reducing engineering geological risks. Considering the basic stability of
Na Wei, Chao Zhang, Li Zhou, Shenghui Zhang, Shouwei Zhou, Liehui Zhang, Jinzhou Zhao, Richard B.Coffin, Bjørn Kvamme   +8 more
doaj   +1 more source

Subsurface Depressurization Systems Fact Sheet

, 2008
Vapor intrusion occurs when vapors from volatile organic contamination in soil or ground water enter nearby buildings through cracks and holes in the foundations or slabs or via crawl spaces.

core   +1 more source

Comparison and Optimization of Methane Hydrate Production Process Using Different Methods in a Single Vertical Well

Energies, 2018
Natural gas hydrate (NGH) is a potential type of clean and efficient energy that is widely distributed in the ocean and permafrost, and most of the present researches are mainly focused on finding out efficient exploitation methods. Taking the effects of
Yun-Pei Liang, Shu Liu, Qing-Cui Wan, Bo Li, Hang Liu, Xiao Han   +5 more
doaj   +1 more source

Evaporation of a bicomponent droplet during depressurization [PDF]

International Journal of Heat and Mass Transfer, 2016
Abstract This paper reports an experimental and numerical study of evaporation process of a two-volatile bicomponent (ethanol/water and acetic acid/water) droplet during depressurization. The environmental pressure, the ambient temperature, and the droplet temperature are investigated during the experiments.
Lu Liu, Yan Liu, Menglong Mi, Zhi Wang, Lulin Jiang   +4 more
openaire   +1 more source