Results 41 to 50 of about 2,013,805 (269)

Biomineralization of primary carbonate cements: a new biosignature in the fossil record from the Anisian of Southern Italy

open access: yesLethaia, EarlyView., 2021
Biomineralization is a generic term used to indicate biological‐mediated mineral formation. In carbonate mineralization, nucleation of crystals can be: (1) controlled directly by the organisms, like in the skeletal formation of most metazoans; (2) induced by microbial communities, by indirect precipitation mediated by their metabolic activities; or (3)
Adriano Guido   +4 more
wiley   +1 more source

Effects of the Sedimentary Environment on Organic-Rich Shale in the Intracratonic Sag of the Sichuan Basin, China

open access: yesApplied Sciences
The enrichment of organic matter in high-quality marine shale is generally controlled by factors such as the redox conditions of sedimentary environments, productivity levels, terrigenous input, and ancient productivity.
Xuewen Shi   +12 more
doaj   +1 more source

PINN-Based Method for Predicting Flow Field Distribution of the Tight Reservoir after Fracturing

open access: yesGeofluids, 2022
The physical-informed neural network (PINN) model can greatly improve the ability to fit nonlinear data with the incorporation of prior knowledge, which endows traditional neural networks with interpretability.
Jun Pu   +5 more
doaj   +1 more source

Field experience and numerical investigations of minifrac tests with flowback in low-permeability formations

open access: yesUnderground Space, 2021
In this study, flowback-assisted minifrac tests were conducted in low-permeability shale and salt formations to measure the in situ stress. An injection/flowback testing protocol was implemented in each test to achieve accuracy and efficiency.
Yu Fan   +5 more
doaj   +1 more source

What prospects for shale gas in Asia? Case of shale gas in China

open access: yesThe Journal of World Energy Law & Business, 2020
Abstract The issues of energy and the environment are one of the main challenges for humanity today. Global growth in energy demand is facing environmental concerns, especially in fast-growing regions such as Asia. Transferring traditional energy sources such as coal, oil, to cleaner energy sources and renewables is an inevitable trend ...
Minh Thong Le   +3 more
openaire   +1 more source

Recent Advances in Zn/ZSM‐5 Catalysts for Propane Dehydroaromatization: Active Sites, Co‐Aromatization, and Morphological Engineering

open access: yesCarbon and Hydrogen, EarlyView.
This review summarizes recent advances in Zn/ZSM‐5 catalysts for propane dehydroaromatization, focusing on active site engineering, co‐aromatization systems, morphological regulation, and machine learning‐guided development. ABSTRACT Propane dehydroaromatization (PDA) represents a promising route for the value‐added utilization of shale gas resources ...
Shijie Zhao   +9 more
wiley   +1 more source

Controlling factors and exploration potential of shale gas enrichment and high yield in Permian Dalong Formation, northern Sichuan Basin, SW China

open access: yesPetroleum Exploration and Development
Based on the basic data of drilling, logging, testing and geological experiments, the geological characteristics of the Permian Dalong Formation marine shales in the northern Sichuan Basin and the factors controlling shale gas enrichment and high yield ...
Rui YONG   +5 more
doaj   +1 more source

Process of EUR prediction for shale gas wells based on production decline models—a case study on the Changning block

open access: yesFrontiers in Energy Research, 2023
To effectively develop the shale gas in the southern Sichuan Basin, it is essential to accurately predict and evaluate the single-well production and estimated ultimate recovery (EUR).
Sha Liu   +3 more
doaj   +1 more source

Molten‐Salt‐Mediated Chemical Looping Oxidative Dehydrogenation of Ethane with In‐Situ Carbon Capture and Utilization

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
A sustainable alternative to steam cracking, the molten‐salt‐mediated oxidative dehydrogenation (MM‐ODH) of ethane (C2H6) in Li2CO3‐Na2CO3‐K2CO3 (LNK) couples thermal cracking with melt‐mediated CO2 capture to realize commercially competitive C2H4 and CO yields. LNK composition strongly influences MM‐ODH process outcomes.
Kyle Vogt‐Lowell   +6 more
wiley   +1 more source

Characterization of pore structure, gas adsorption, and spontaneous imbibition in shale gas reservoirs

open access: yes, 2017
The multiscale pore structure and its distribution as well as the occurrence state of shale gas and spontaneous imbibition in gas shale are studied experimentally.
黄先富   +2 more
core   +1 more source

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