Results 11 to 20 of about 455,246 (218)

Real-Time Gas Chromatography System for Ultrasensitive Monitoring of Odorants in Natural Gas Infrastructure. [PDF]

open access: yesInt J Anal Chem
Natural gas (NG), primarily composed of methane, is colorless and odorless, thus necessitating odorization to enable leak detection and accident prevention.
Chen Z, Song K, Zhang P, Zhou L, Tu Z.
europepmc   +2 more sources

Synthetic Method and Oil Displacement Capacity of Nano-MoS2

open access: yesGeofluids, 2022
Nanomaterials can be used to emulsify and reduce the fluid viscosity, reduce pore pressure, and increase injection volume. Therefore, nanomaterials have a great potential in the enhanced oil recovery.
Liang Zhang   +8 more
doaj   +1 more source

Wireless Monitoring of Downhole Pressure Based on Tubing Transmission

open access: yesGeofluids, 2023
Downhole pressure is an important parameter for evaluating the production status of production wells. A wireless monitoring system was designed for downhole pressure which consists of two parts, i.e., the downhole tool and the wellhead tool.
Jian Zheng   +4 more
doaj   +1 more source

Drag Reduction Mechanism of Viscoelastic Slick-Water Fracturing Fluid in Tortuous and Rough Fractures

open access: yesGeofluids, 2021
Slick-water can effectively reduce the flow drag of fracturing fluid. Many studies have focused on the drag reduction performance of slick-water in wellbore and perforation, but there has been little research on drag reduction characteristics in fracture
Zhiyu Liu   +7 more
doaj   +1 more source

Research on a Hybrid Intelligent Method for Natural Gas Energy Metering

open access: yesSensors, 2023
In this paper, a Comprehensive Diagram Method (CDM) for a Multi-Layer Perceptron Neuron Network (MLPNN) is proposed to realize natural gas energy metering using temperature, pressure, and the speed of sound from an ultrasonic flowmeter.
Jingya Dong   +6 more
doaj   +1 more source

Development and industrial application of catalyzer for low-temperature hydrogenation hydrolysis of Claus tail gas

open access: yesNatural Gas Industry B, 2015
With the implementation of more strict national environmental protection laws, energy conservation, emission reduction and clean production will present higher requirements for sulfur recovery tail gas processing techniques and catalyzers.
Honggang Chang   +6 more
doaj   +1 more source

Research on the flow-induced vibration characteristics based on heat–fluid–structure coupling in natural gas loop

open access: yesAIP Advances, 2023
To research the flow-induced vibration characteristics of the natural gas loop, unsteady numerical simulation is carried out on the loop calculation model under different ambient temperatures and different flow rates, and the influence of different flow ...
Yilong Qiu, Jia Ren, Xi Zhang, Siyu Chen
doaj   +1 more source

A local binary patterns/variance operator based on guided filtering for seismic fault detection

open access: yesSN Applied Sciences, 2021
Aiming at suppressing noise interference, improving the fault detection ability of seismic data, fully excavating the effective information in seismic data, and further improving the accuracy of fault detection, this study proposes a seismic fault ...
Renfei Tian, Xue Lei, Min Ouyang
doaj   +1 more source

Retrofit design for automatic offtake system of natural gas pipeline station

open access: yesYou-qi chuyun
Objective With the rapid development of intelligent pipelines and smart pipeline network construction, coupled with the widespread application of unattended station operation technologies, the automatic offtake system plays an increasingly significant ...
Wenyi TANG   +5 more
doaj   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Home - About - Disclaimer - Privacy