Results 31 to 40 of about 6,546,850 (243)

Development and Application of Dual-Tubing Jet Pump Full-Process Pressure-Maintained Drainage String in Deep Coal-Rock Gas Wells

Shiyou jixie
Deep coal-rock gas reservoir is sensitive to downhole pressure variation， and implementing kill operation may cause damage to gas production. Consequently， a full-process pressure-maintained operation technique of dual-tubing jet pump for deep coal-rock ...
Wu Jianjun, Wang Yubin, Ma Wentao, Liu Yinhua, Yin Decai, Ma Zhao, Yan Yongwei   +6 more
doaj   +1 more source

Silage of the organic fraction of municipal solid waste to improve methane production

Water Science and Technology, 2021
The silage of the organic fraction of municipal solid waste (OFMSW) is a common practice in biogas plants. During silage, fermentation processes take place, affecting the later methanisation stage.
Mario F. Castellón-Zelaya, Simón González-Martínez   +1 more
doaj   +1 more source

Lithology identification of shale gas reservoirs using multi-source intelligent learning algorithms

Discover Applied Sciences
Lithology classification of shale gas reservoirs is pivotal for oil and gas exploration and development, as it directly dictates the reliability of reservoir evaluation, fracturing design, and productivity prediction.
Ming Chen, Longfei Sun, Li Hao, Wei Xiong, Lin Yang, Liwei Cui   +5 more
doaj   +1 more source

Investigation into hydraulic fracture propagation behavior during temporary plugging and diverting fracturing in deep coal seam

Frontiers in Energy Research
In this study, we conducted indoor temporary plugging and diverting fracturing (TPDF) experiments on samples of natural deep and shallow coal seams using a small-scale true triaxial fracturing simulation system.
Sun Zening, Sun Zening, Tan Zhanglong, Tan Zhanglong, Lin Junwen, Lin Junwen, An Qi, An Qi, Zou Yushi, Liu Shikang, Zhao Ziwen   +10 more
doaj   +1 more source

Biogas production of Chicken Manure by Two-stage fermentation process

E3S Web of Conferences, 2018
This paper performs a batch experiment for pre-acidification treatment and methane production from chicken manure by the two-stage anaerobic fermentation process.
Liu Xin Yuan, Wang Jing Jing, Nie Jia Min, Wu Nan, Yang Fang, Yang Ren Jie   +5 more
doaj   +1 more source

Physics‐Grounded Materials Artificial Intelligence for Reliable Materials Discovery

Advanced Functional Materials, EarlyView.
Physics‐Grounded Materials AI (PhysMat AI) integrates physical priors, descriptors, constraints, verification, and data infrastructure into a unified full‐stack framework, enabling reliable, interpretable, and autonomous AI‐driven materials discovery.
Yuhang Wang, Qian Wang, Seong‐Hoon Jang, Hao Li   +3 more
wiley   +1 more source

HYDROGEN AS ENERGY CARRIER: DECENTRALIZED PRODUCTION BY AUTOTHERMAL REFORMING OF METHANE [PDF]

, 2008
The aim of this PhD thesis will be the mathematical modeling of an autothermal reactor for hydrogen production from methane, followed by an experimental campaign. Commercial pellets catalysts will be employed, in particular Ni-based and Rh-based catalyst,
Scognamiglio, Diego
core   +1 more source

Strengthening mechanism of cemented hydrate‐bearing sand at microscales

Geophysical Research Letters, 2016
On the basis of hypothetical particle‐level mechanisms, several constitutive models of hydrate‐bearing sediments have been proposed previously for gas production.
Jun Yoneda, Yusuke Jin, Jun Katagiri, Norio Tenma   +3 more
doaj   +1 more source

Evaluation of the methane paradox in four adjacent pre-alpine lakes across a trophic gradient

Nature Communications, 2023
Contrasting the paradigm that methane is only produced in anoxic conditions, recent discoveries show that oxic methane production (OMP, aka the methane paradox) occurs in oxygenated surface waters worldwide.
César Ordóñez, Tonya DelSontro, Timon Langenegger, Daphne Donis, Ena L. Suarez, Daniel F. McGinnis   +5 more
doaj   +1 more source

Digitally Printed Eco‐Friendly Electronic Devices

Advanced Functional Materials, EarlyView.
Fabrication of electronics using eco‐friendly materials through digital printing routes is a promising strategy for improving life cycle sustainability and reducing the environmental impacts of conventional manufacturing. This review highlights state‐of‐the‐art eco‐friendly materials, green ink formulations, various resource‐efficient digital printing ...
Nitheesh M. Nair, Mikel Rincón‐Iglesias, Cristian Mendes‐Felipe, Fatemeh Etehadi, Senentxu Lanceros‐Méndez, Gerardo Hernandez‐Sosa   +5 more
wiley   +1 more source