Results 61 to 70 of about 973,075 (210)

A Detailed Analysis of the Productivity Performance of Oil and Gas Extraction in Canada [PDF]

In recent years, the productivity performance of oil and gas extraction in Canada has been dismal. Based on official real GDP and labour input estimates from Statistics Canada, labour productivity in oil and gas extraction fell 8.23 per cent per year ...
Andrew Sharpe, Celeste Bradley
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An Experimental Study of Glycerol Carbonate Synthesis over g-C₃N₄ Catalysts

Applied Sciences
This study examines a catalyst based on graphitic carbon nitride (g-C3N4) for synthesizing glycerol carbonate through the coupling reaction of glycerol and CO2.
Mirna Lea Charif, Dragoș Mihael Ciuparu, Ioana Lavinia Lixandru Matei, Gabriel Vasilievici, Ionuț Banu, Marian Băjan, Dorin Bomboș, Cristina Dușescu-Vasile, Iuliana Veronica Ghețiu, Cașen Panaitescu, Rami Doukeh   +10 more
doaj   +1 more source

Investigation of Large-Diameter Borehole for Enhancing Permeability and Gas Extraction in Soft Coal Seam

Geofluids, 2020
The efficiency of gas extraction from the soft coal seam with ultralow permeability is low. Gas extraction with large-diameter borehole is proposed to deplete gas content for preventing gas outburst disaster in this study.
Yongwen Wang, Wanjun Yan, Zhongjiu Ren, Zhiqiang Yan, Ziwen Liu, Heng Zhang   +5 more
doaj   +1 more source

An optimized analytical method for the simultaneous detection of iodoform, iodoacetic acid, and other trihalomethanes and haloacetic acids in drinking water [PDF]

, 2013
An optimized method is presented using liquid-liquid extraction and derivatization for the extraction of iodoacetic acid (IAA) and other haloacetic acids (HAA9) and direct extraction of iodoform (IF) and other trihalomethanes (THM4) from drinking water ...
He, G, Jiang, S, Liu, X, Qu, W, Templeton, MR, Wei, X, Zheng, W   +6 more
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Determination of gas volume trapped in a closed fluid system [PDF]

, 1971
Technique involves extracting known volume of fluid and measuring system before and after extraction, volume of entrapped gas is then computed. Formula derived from ideal gas laws is basis of this method.
Hunter, W. F., Jolley, J. E.
core   +1 more source

Forecasting Sauter mean droplet size and examining the range of droplet sizes in a Tenova liquid–liquid extraction column

Scientific Reports
A new type of Tenova pulsed extraction column was introduced in 2017. It is the newest generation of pulsed columns. Due to the internal equipment of this column and the lack of moving parts and the simplicity and speed of repairs and maintenance, it has
Neshat Rahimpour, Hossein Bahmanyar, Alireza Hemmati, Mehdi Asadollahzadeh   +3 more
doaj   +1 more source

Nanoscale flow model modelling and analysis of tight reservoir based on viscosity change and interfacial slip characteristics in confined space

Petroleum
Understanding the flow mechanisms between hydrocarbons and interfaces in nanopores is critical for fluid supply in tight reservoirs with huge reserves.
Hongnan Yang, Ping Yue, Zhouhua Wang, Yuewen Xiong, Wei Fan, Shaoshuai Zhang, Wenxiang Shi   +6 more
doaj   +1 more source

Theoretical, numerical, and experimental analysis of effective extraction radius of coalbed methane boreholes by a gas seepage model based on defined criteria

Energy Science & Engineering, 2020
The effective extraction radius of borehole is the main parameter for determining the design and layout for coalbed methane extraction. This paper is aimed at the problem that the criteria and calculation methods for the effective extraction radius of ...
Hao Xu, Gang Wang, Yang yang Guo, Bo Chang, Yanwei Hu, Jiuyuan Fan   +5 more
doaj   +1 more source

A method for intelligent information extraction of coal fractures based on µCT and deep learning

Meitian dizhi yu kantan
ObjectiveThe fine-scale characterization of fractures in coal reservoirs is significant for the exploration and exploitation of coalbed methane (CBM) resources.
Zhazha HU, Xun ZHANG, Yi JIN, Linxian GONG, Wenhui HUANG, Jianji REN, Norbert Klitzsch   +6 more
doaj   +1 more source

The main directions of the field development systems improvement and the potential of oil extraction increase in Ukraine [PDF]

, 2013
The main reasons for reduction of oil and gas extraction in Ukraine are presented. The priority directions for improving the oil and gas field development systems and the potential increase of oil and gas extraction volumes in Ukraine are substantiated ...
Doroshenko, V. M., Hryshanenko, V. P., Prokopiv, V. J., Shvydkyi, O. A., Zarubin, Y. O.   +4 more
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