Results 31 to 40 of about 26,518,847 (168)

Analytical Solutions for Gas-Water Two-Phase Flow in Multiseam Coalbed Methane Production

Geofluids, 2021
Multiseam coalbed methane (CBM) exploitation can not only reduce single-well investment but also increase the length of service of the well and significantly enhance the CBM economic recovery of the entire basin. To compare with and further to guide the actual project of CBM production, this study proposed a conceptual gas-water two-phase separate flow
Xiaoji Shang, Zhizhen Zhang, Yixin Niu, Xiao Yang, Feng Gao   +4 more
openaire   +2 more sources

Experimental and numerical studies on gas pressure–induced deformation and failure of unsaturated soil

工程科学学报, 2023
Earth-cover landfills are one of the primary means of treating urban garbage. However, the organic matter in the garbage generates a large amount of gas upon degradation.
Maohong YAO, Tielin CHEN, Pengcheng ZHU, Man LI, Song GUO, Changbao LIU   +5 more
doaj   +1 more source

Relative permeability model for shale reservoirs considering water distribution and imbibition with two fractal regions

Petroleum
Shale gas is a key transitional low-carbon energy source, offering a cleaner-burning alternative to coal, reducing greenhouse gas emissions, and supporting energy security during the transition to renewable energy systems.
Yingzhong Yuan, Liangliang Jiang, Aliakbar Hassanpouryouzband, Nanlin Zhang, Saeid Ataei Fath Abad, Zhilin Qi, Hongbin Liang, Wende Yan   +7 more
doaj   +1 more source

Effect of channel geometries on two-phase mixture level swell and its fluctuation amplitude

Mechanical Engineering Journal, 2020
Gas–liquid two-phase flow in a stagnant pool is an important phenomenon in designing and operating industrial facilities. When gas is mixed or boiling occurs in stagnant water, the actual water level appears higher than the original water level.
Takahiro ARAI, Masahiro FURUYA, Kenetsu SHIRAKAWA   +2 more
doaj   +1 more source

Evolutionary characteristics of water blocking effect in coal reservoir pores under different water saturations

Meitan kexue jishu
To deeply explore the dynamic evolutionary characteristics of water blocking effect in coal reservoir pores under different water saturation conditions, optimize and guide the target mine to formulate an efficient water blocking release strategy, thus ...
Chenxi REN, Bingbing LI, Yajing LIU, Nan WU, Jianliang GAO, Shasha ZHANG, Yungang WANG, Zhiyong SONG   +7 more
doaj   +1 more source

New Algorithm to Discriminate Phase Distribution of Gas-Oil-Water Pipe Flow With Dual-Modality Wire-Mesh Sensor

IEEE Access, 2020
Three-phase gas-oil-water flow is an important type of flow present in petroleum extraction and processing. This paper reports a novel threshold-based method to visualize and estimate the cross-sectional phase fraction of gas-oil-water mixtures.
Felipe D. A. Dias, Eduardo N. dos Santos, Marco J. da Silva, Eckhard Schleicher, Rigoberto E. M. Morales, Buddhika Hewakandamby, Uwe Hampel   +6 more
doaj   +1 more source

Water/Methane Two‐Phase Flow in the SiO2 Nanoslit Can Be Well Described via the Deformed Water Layer Model: A Molecular Simulation Study

Geophysical Research Letters
The intricate flow processes in nano‐pores pose limitations on the extraction of resources such as shale gas and gas hydrates. To observe water/gas two‐phase flow in nano‐pores, we employed molecular dynamics simulations on water/methane two‐phase flow ...
Chao Zheng, Guang‐Jun Guo, Cheng Lu, Yanhui Dong, Bo Peng, Wei Tang, Bingyao Han   +6 more
doaj   +1 more source

Macroscale Gas–Water Two‐Phase Transport Simulation in Shales considering Nanomicroscale Effects

International Journal of Energy Research
As an effective approach to evaluate shale gas production, macroscale numerical simulations have been conducted; however, multiscale storage space and complex gas–water two‐phase transport mechanisms are not systematically considered. To deal with this, a rigorous cross‐scale gas–water two‐phase transport simulation method that considers the pore, core,
Dongying Wang, Hua Liu, Jun Yao, Weihong Wang, Xiaohu Hu, Yanyan Wang   +5 more
openaire   +1 more source

Iterative Analytical Solutions for Nonlinear Two-Phase Flow with Gas Solubility in Shale Gas Reservoirs

Geofluids, 2019
The governing equations of a two-phase flow have a strong nonlinear term due to the interactions between gas and water such as capillary pressure, water saturation, and gas solubility.
Xiaoji Shang, J. G. Wang, Zhizhen Zhang
doaj   +1 more source

Pore-scale modeling of gas–water two-phase flow in porous gas reservoirs

Journal of Petroleum Exploration and Production Technology
Porous gas reservoirs are abundant in reserves and represent a significant proportion of discovered gas reservoirs worldwide. During the middle to late stages of development, these reservoirs often face the risk of water invasion, which reduces ...
Minhua Cheng, Weijun Shen, Tianran Ma, Fenjun Chen, Xinyi Wang, Xu Yang, Yu Jing   +6 more
doaj   +1 more source