Results 1 to 10 of about 29,852 (162)

On the Lauwerier formulation of the temperature field problem in oil strata [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
The paper is concerned with the fractional extension of the Lauwerier formulation of the problem related to the temperature field description in a porous medium (sandstone) saturated with oil (strata).
Lyubomir Boyadjiev   +2 more
doaj   +4 more sources

Strata temperatures and geothermal resource evaluation in the Dongpu Depression, Bohai Bay Basin, North China

open access: yesScientific Reports, 2023
The development of geothermal resources in the Dongpu Depression can improve not only the economic benefits of the oilfield but also the ecological environment. Therefore, it is necessary to evaluate the geothermal resources in the region.
Yong Qiao   +5 more
doaj   +3 more sources

CFD Simulation of Temperature Variation in Carboniferous Rock Strata During UCG

open access: yesJournal of Sustainable Mining, 2013
The numerical simulation was based on the computational fluid dynamics formalism in order to identify the change of temperature in rock strata during underground coal gasification (UCG).
Tomasz Janoszek   +2 more
doaj   +2 more sources

Mass transfer in the snow strata under conditions of large temperature gradients [PDF]

open access: yesBIO Web of Conferences
In the winter of 2022-2023, a study of the crystal structure of hoarfrost horizons on the slopes of Mount Elbrus was carried out in conditions of the low-snow winter period.
Frolov D.M.   +4 more
doaj   +2 more sources

Mechanism of dehydroxylation temperature decrease and high temperature phase transition of coal-bearing strata kaolinite intercalated by potassium acetate

open access: yesJournal of Colloid and Interface Science, 2012
The thermal decomposition and dehydroxylation process of coal-bearing strata kaolinite-potassium acetate intercalation complex (CSKK) has been studied using X-ray diffraction (XRD), infrared spectroscopy (IR), thermal analysis, mass spectrometric analysis and infrared emission spectroscopy.
Hongfei Cheng, Qinfu Liu
exaly   +4 more sources

Change mechanism simulation study of the overlying strata temperature field and fracture field in UCG

open access: yes矿业科学学报, 2017
The thermodynamic parameters of surrounding rock of the coal seam in a certain gasification field in Inner Mongolia are measured, and the relationships of the heat capacity and thermal conductivity of the surrounding rock of the coal seam and the ...
Zhao Mingdong, Dong Donglin, Tian Kang
doaj   +1 more source

A study on impacts of groundwater seepage on artificial freezing process of gravel strata [PDF]

open access: yesRailway Sciences, 2023
Purpose – This paper aims to study the impacts of groundwater seepage on artificial freezing process of gravel strata, the temperature field characteristics of the strata, and the strata process, closure time and thickness evolution mechanism of the ...
Tianliang Wang   +3 more
doaj   +1 more source

Surface geochemical anomaly pattern of medium-to-high temperature geothermal systems in South China and its application

open access: yesEnergy Geoscience, 2023
The existence of thermal storage will correspondingly increase the temperature of surrounding strata and promote the continuous expansion, volatilization, upward migration, and loss of gas in the strata. As a result, a low-concentration gas field will be
Guangzhi Li   +3 more
doaj   +1 more source

Waterfowl conservation in the US Prairie Pothole Region: confronting the complexities of climate change. [PDF]

open access: yesPLoS ONE, 2014
The Prairie Pothole Region (PPR) is the most important waterfowl production area in North America. However, waterfowl populations there are predicted to decline because of climate-related drying of wetlands.
Neal D Niemuth   +2 more
doaj   +1 more source

Movable oil extraction from shale with supercritical carbon dioxide

open access: yesShiyou shiyan dizhi, 2020
Movable oil extraction experiments from the lower part of third member of Paleogene Shahejie Formation (Es3L) in the Zhanhua Sag of Jiyang Depression of Bohai Bay Basin were made to address problems on matrix shale oil exploitation.
Qiang WANG   +7 more
doaj   +1 more source

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