Results 21 to 30 of about 112,863 (268)

A comprehensive analysis of innovations to overcome challenges in horizontal well hydraulic fracturing in tight reservoirs: a case study on the lower Devonian in Berkine Basin, Algeria

Journal of Petroleum Exploration and Production Technology
Horizontal wells combined with multi-stage hydraulic fracturing represent the most effective approach for extracting resources from tight reservoirs. Hydraulic fracturing involves injecting formulated fluids at high pressure to fracture the formation ...
Dhiya Eddine Nouri, Khaled Benyounes, Faycal Smail, Houssem Eddine Belhouchet   +3 more
doaj   +1 more source

Subsurface Characterization of the Merija Anticline’s Rooting Using Integrated Geophysical Techniques: Implications for Copper Exploration

Geosciences
This study investigates the subsurface rooting of the Merija anticline in the Missour Basin, Morocco, with a focus on copper mineralization exploration. A sequential geophysical workflow was implemented, combining gravity surveys, electrical resistivity (
Mohammed Boumehdi, Hicham Khebbi, Doha Dchar, Lahsen Achkouch, Anwar Ain Tagzalt, Nour Eddine Berkat, Mohammed Magoua, Youssef Hahou, Othman Sadki   +8 more
doaj   +1 more source

Bottom hole pressure estimation using hybridization neural networks and grey wolves optimization

Petroleum, 2018
An effective design and optimum production strategies of a well depend on the accurate prediction of its bottom hole pressure (BHP) which may be calculated or determined by several methods.
Menad Nait Amar, Nourddine Zeraibi, Kheireddine Redouane   +2 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Imidazoline-Based Fatty Acid Derivatives as Novel Shale Inhibitors for Water-Based Drilling Fluids

Applied Sciences
Water-based drilling fluids (WBMs) are widely applied in petroleum engineering due to their lower cost and reduced environmental impact compared to oil-based muds.
Ioana Gabriela Stan, Mihail Tudose, Alina Petronela Prundurel, Gheorghe Branoiu, Liviu Dumitrache, Silvian Suditu, Doru Bogdan Stoica, Emil Zaharia, Rami Doukeh   +8 more
doaj   +1 more source

Hydrogen–Natural Gas Mix—A Viable Perspective for Environment and Society

Energies, 2023
The increase in demand, and thus the need to lower its price, has kept C-based fuels as the main source. In this context, the use of oil and gas has led to increased climate change, resulting in greenhouse gases. The high percentage of eissions, over 40%,
Adrian Neacsa, Cristian Nicolae Eparu, Cașen Panaitescu, Doru Bogdan Stoica, Bogdan Ionete, Alina Prundurel, Sorin Gal   +6 more
doaj   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

FEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta, Hari Baskar Balasubramanian, Amir Pasokh, Marietta Zille   +3 more
wiley   +1 more source

Effect of Cu(NO₃)₂ and Cu(CH₃COO)₂ Activating Additives on Combustion Characteristics of Anthracite and Its Semi-Coke

Energies, 2020
The process of anthracite and its semi-coke combustion in the presence of 5 wt.% (in terms of dry salt) additives of copper salts Cu(NO3)2 and Cu(CH3COO)2 was studied. The activating additives were introduced by an incipient wetness procedure.
Kirill Larionov, Konstantin Slyusarskiy, Svyatoslav Tsibulskiy, Anton Tolokolnikov, Ilya Mishakov, Yury Bauman, Aleksey Vedyagin, Alexander Gromov   +7 more
doaj   +1 more source

Correlation of Gas Quality with Hydrodynamic Parameters in Transmission Networks [PDF]

MATEC Web of Conferences, 2019
Natural gases are a mixture of hydrocarbons. Their composition determines the basic variables that need to be taken into account in the calculation of transport or gathering systems.
Eparu Cristian Nicolae, Neacsu Sorin, Neacsa Adrian   +2 more
doaj   +1 more source

The microbiome in human skin aging

FEBS Letters, EarlyView.
Age‐related skin changes encompass the well‐known visible phenotypic alterations, together with microbiome dysbiosis and a series of molecular aging hallmarks. These hallmarks characterize not only a fully stablished aged phenotype but also the skin aging process itself.
Manuel Huerta Arana, Cornelia Wiegand, Omid Omrani, Mario Fabri   +3 more
wiley   +1 more source