Results 11 to 20 of about 516,753 (311)

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

open access: yesInternational Journal of Analytical Chemistry
Natural gas (NG), primarily composed of methane, is colorless and odorless, thus necessitating odorization to enable leak detection and accident prevention.
Zixun Chen   +4 more
doaj   +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

Natural gas at thermodynamic equilibrium Implications for the origin of natural gas [PDF]

open access: yesGeochemical Transactions, 2009
It is broadly accepted that so-called 'thermal' gas is the product of thermal cracking, 'primary' thermal gas from kerogen cracking, and 'secondary' thermal gas from oil cracking. Since thermal cracking of hydrocarbons does not generate products at equilibrium and thermal stress should not bring them to equilibrium over geologic time, we would not ...
Jarvie Daniel   +2 more
openaire   +3 more sources

Helium in Natural Gas [PDF]

open access: yesScience, 1906
n ...
Cady, H. P., Mcfarland, D. F.
openaire   +4 more sources

THE OCCURRENCE OF HELIUM IN NATURAL GAS AND THE COMPOSITION OF NATURAL GAS. [PDF]

open access: yesJournal of the American Chemical Society, 1907
n ...
Cady, Hamilton P., McFarland, David F.
openaire   +1 more source

The geology of natural gas [PDF]

open access: yesScience, 1885
The existence of natural gas-springs in Pennsylvania and the adjoiningStates west of the crest of the Allegheny Mountains was known to the earliestsettlers. Possibly the first gas obtained from a well was at Fredonia, Chautauqua County, N.Y., where a well was sunk on the bank of Canadaway Creek, near the Main Street bridge, in 1821, and sufficient gas ...
openaire   +6 more sources

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

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