Results 111 to 120 of about 27,555 (212)

Hydrogen production econometric studies [PDF]

open access: yes
The current assessments of fossil fuel resources in the United States were examined, and predictions of the maximum and minimum lifetimes of recoverable resources according to these assessments are presented.
Bannerot, R. B., Howell, J. R.
core   +1 more source

Controlling factors of low resistivity in deep shale and their implications on adsorbed gas content: a case study in the luzhou area

open access: yesScientific Reports
Numerous gas-rich, low resistivity shale wells have been discovered in the Luzhou deep shale gas of Sichuan Basin, providing strong evidence that low-resistivity shale also holds significant potential for shale gas exploration. However, existing research
Mugui Liang   +3 more
doaj   +1 more source

Evaluation of the adaptability of CO2 pre-fracturing to Gulong shale oil reservoirs, Songliao Basin, NE China

open access: yesPetroleum Exploration and Development
Based on development practices of Gulong shale oil and a series of experiments on interactions between CO2 and the rocks and fluids of shale oil reservoirs, the application and adaptability of CO2 pre-fracturing to the Gulong shale oil reservoirs are ...
Zhengdong LEI   +5 more
doaj   +1 more source

A review of fault diagnosis and prognosis for oil pumping machines

open access: yesNext Energy
Oil pumping machines play a key role in petroleum extraction. However, oil pumping units are prone to faults due to age and harsh operational environments, which may have adverse impacts on production safety and availability, driving urgent needs for ...
Zhi-Wei Gao, Xuanchi Zhu, Yuanhong Liu
doaj   +1 more source

Experimental study on the influence of external fluids on the pore structure of carbonaceous shale

open access: yesGeomechanics and Geophysics for Geo-Energy and Geo-Resources
Shale reservoirs have complex mineral compositions and are rich in micro-scale pores. It is of great scientific and engineering significance to explore the mechanism of external fluids on the pore throat structure of shale.
Ying Yang   +5 more
doaj   +1 more source

Multi-sphere coupling characteristics and gas-bearing controlling factors of calcareous shale reservoirs in the Yadu-Ziyun-Luodian Aulacogen under Early Carboniferous platform-basin transitional sedimentary system, South China

open access: yesFrontiers in Earth Science
The Early Carboniferous Dawuba Formation within the Yadu-Ziyun-Luodian aulacogen (YZLA), southern China, represents a significant shale gas play formed within a dynamic platform-basin transitional sedimentary system influenced by multi-sphere coupling ...
Kun Yuan   +18 more
doaj   +1 more source

Evaluating the stability and volumetric flowback rate of proppant packs in hydraulic fractures using the lattice Boltzmann-discrete element coupling method

open access: yesJournal of Rock Mechanics and Geotechnical Engineering
The stability and mobility of proppant packs in hydraulic fractures during hydrocarbon production are numerically investigated by the lattice Boltzmann-discrete element coupling method (LB-DEM). This study starts with a preliminary proppant settling test,
Duo Wang   +4 more
doaj   +1 more source

RESOURCE POTENTIAL OF THE CONTINENTAL SHALE OIL IN CHINA [PDF]

open access: yesGeological Society of America Abstracts with Programs, 2019
openaire   +1 more source

Solvent-free selective hydrogenation of nitroaromatics to azoxy compounds over Co single atoms decorated on Nb2O5 nanomeshes

open access: yesNature Communications
The solvent-free selective hydrogenation of nitroaromatics to azoxy compounds is highly important, yet challenging. Herein, we report an efficient strategy to construct individually dispersed Co atoms decorated on niobium pentaoxide nanomeshes with ...
Zhijun Li   +13 more
doaj   +1 more source

Temperature-Dependent Pore Size Redistribution and Fractal Complexity in Low-Maturity Shale: Implications for In Situ Conversion

open access: yesFractal and Fractional
Low-maturity shale is a prime target for in situ conversion (ICP), yet heating window selection remains largely empirical because pore evolution and hydrocarbon generation are rarely quantified in tandem. Nenjiang Formation shale from the Songliao Basin (
Qiansong Guo   +5 more
doaj   +1 more source

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