Results 31 to 40 of about 6,142 (259)

Characterizing Gas Hydrate–Bearing Marine Sediments Using Elastic Properties—Part 1: Rock Physical Modeling and Inversion from Well Logs

Journal of Marine Science and Engineering, 2022
Gas hydrates are considered a potential energy source for the future. Rock physics modeling provides insights into the elastic response of sediments containing gas hydrates, which is essential for identifying gas hydrates using well-log data and seismic ...
Zhiqi Guo, Xiaoyu Lv, Cai Liu, Haifeng Chen, Zhiguang Cai   +4 more
doaj   +1 more source

Key Areas of Gas Hydrates Study: Review

Energies, 2022
Gas hydrates are widespread all over the world. They feature high energy density and are a clean energy source of great potential. The paper considers experimental and theoretical studies on gas hydrates in the following key areas: formation and ...
Olga Gaidukova, Sergei Misyura, Pavel Strizhak   +2 more
doaj   +1 more source

Extrusion‐Based Additive Manufacturing of Advanced Ceramics: Strengthening Mechanisms and Process Optimization Review

Advanced Engineering Materials, EarlyView.
This review comprehensively evaluates extrusion‐based additive manufacturing for advanced ceramics, detailing feedstock options and key process parameters. By critically addressing defect mechanisms like porosity and cracking, the work highlights optimization strategies through machine learning and advanced postprocessing.
Meisam Bakhtiari, Mohammad Hadi Sheikh‐Ansari, Avinash Borgaonkar, Mehran Dadkhah, Abdollah Saboori   +4 more
wiley   +1 more source

An experimental study of proppant transport mechanisms to the pump intake in low-flow oil wells

Petroleum Research
The exploitation of low-flow oil wells following hydraulic fracturing is often hindered by residual proppant and proppant production during early production phases, which can infiltrate pumps and drastically shorten their service life.
Evgenii Kozhevnikov, Fedor Belkov, Mikhail Turbakov, Zakhar Ivanov, Evgenii Riabokon, Dmitrii Fedurov, Mikhail Guzev, Evgenii Gladkikh, Jiangyu Wu   +8 more
doaj   +1 more source

Molecular Adsorbing Host•Guest (MAHG) Crystals: A New Paradigm for Porous Materials?

Advanced Functional Materials, EarlyView.
Networking! Introduction of guest molecules in macrocycles before crystallization profoundly influences the material obtained in terms of structure and function. Beside simplicity and porous space improvement, this approach is endowed with a huge potential given the myriad of potential guest molecules that can be used to tune this burgeoning class of ...
Ingrid Suzana, Michel Giorgi, Anthony Kermagoret, Alexandre Martinez, David Bardelang   +4 more
wiley   +1 more source

A Numerical Investigation of Enhancing Hydrate Dissociation via Co-Production with Shallow Gas upon a Large-Scale Model

Energies
Investigations into the production of gas hydrates from marine sediments have demonstrated that commercial viability necessitates a daily gas production rate of 130,000 to 200,000 m3.
Xin Lei, Weixin Pang, Qiang Fu, Yuhua Ma, Yang Ge, Lu Liu, Huiyun Wen   +6 more
doaj   +1 more source

First-Principles Elastic and Anisotropic Characteristics of Structure-H Gas Hydrate under Pressure

Crystals, 2021
Evaluating gas hydrates properties contributes valuably to their large-scale management and utilization in fundamental science and applications. Noteworthy, structure-H (sH) gas hydrate lacks a comprehensive characterization of its structural, mechanical,
Shaden M. Daghash, Phillip Servio, Alejandro D. Rey   +2 more
doaj   +1 more source

High-pressure gas hydrates [PDF]

Phys. Chem. Chem. Phys., 2008
It has long been known that crystalline hydrates are formed by many simple gases that do not interact strongly with water, and in most cases the gas molecules or atoms occupy 'cages' formed by a framework of water molecules. The majority of these gas hydrates adopt one of two cubic cage structures and are called clathrate hydrates.
Loveday, J. S., Nelmes, R. J.
openaire   +4 more sources

Receptor‐Free Identification of Toxic Gases Enabled by Hygroscopic Aqueous Salt Films

Advanced Functional Materials, EarlyView.
Water as a gas sensor coating sounds impossible—until it stops evaporating. Here, hygroscopic salt solutions (LiCl, LiBr, H3PO4) form non‐drying aqueous films on CNT chemiresistors under ambient air. Gases partition into these liquid layers, sometimes transforming into water, and generate salt‐specific resistance fingerprints across a four‐channel ...
Seongwoo Lee, Yun‐Tae Kim, Hwarang Choi, Sanghwan Park, Seongyeop Lim, Chang Young Lee   +5 more
wiley   +1 more source

Analysis of Vortex-Induced Vibrations in a Test Production Riser Subjected to Internal Multiphase Flow

Journal of Marine Science and Engineering
The natural gas hydrate production riser is the main passage for offshore hydrate production and transport. Its safe operation directly affects the production process.
Qiang Fu, Liangjie Mao, Yu Chen, Rui Qin, Junlong Zhu   +4 more
doaj   +1 more source