Results 121 to 130 of about 97,170 (314)

An assessment of stress and production rate of sucker rod heat pipes in oil well pumping system

open access: yesDeep Underground Science and Engineering, EarlyView.
The sucker rod pumping system is the preferred oil extraction technique. The concept about equipping the hollow vacuum space in solid sucker rods with heat pipe has been scrutinized in terms of stress and oil production evaluation. Abstract The implementation of the heat pipe concept in sucker rods for oil pumping systems negates the requirement for an
R. S. Anand   +5 more
wiley   +1 more source

Efficiency evaluation of product oil pipeline under transportation market

open access: yesYou-qi chuyun
Objective The establishment of China Oil and Gas Pipeline Network Corporation marks a significant milestone in the structural reform of China's oil and gas industry.
Hao ZHANG   +7 more
doaj   +1 more source

The European Union-Russia- China energy triangle. Bruegel Policy Contribution Issue #16 December 2019 [PDF]

open access: yes, 2019
Concern is growing in the European Union that a rapprochement between Russia and China could have negative implications for the EU. We argue that energy relations between the EU and Russia and between China and Russia influence each other.
Zachmann, Georg.
core  

Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

open access: yesDeep Underground Science and Engineering, EarlyView.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang   +5 more
wiley   +1 more source

Passive acoustic quantification of gas releases

open access: yes, 2014
The assessment of undersea gas leakages from anthropogenic and natural sources is becoming increasingly important. This includes the detection of gas leaks and the quantification of gas flux. This has applications within oceanography (e.g.
Berges, B.J.P.   +3 more
core  

Performance assessment of a potential underground thermal storage facility: Case study of the closed mine Prosper‐Haniel in the Ruhr coal mining area in Germany

open access: yesDeep Underground Science and Engineering, EarlyView.
This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley   +1 more source

Numerical Simulation Analysis of Filling and Decommissioning Oil and Gas Pipelines

open access: yesEngineering Reports
Oil pipeline transportation is the primary mode of transporting petroleum products, and its safety and environmental concerns have garnered significant attention.
Jiesong Liu, Yuguo Wu, Xiaoling Li
doaj   +1 more source

Seismic analysis and design of tunnels within fault ground: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang   +6 more
wiley   +1 more source

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