Results 11 to 20 of about 505,676 (266)
Influence of tectonic fractures on CO2 storage and enhanced CH4 recovery
In the process of CO2-ECBM, the tectonic fractures developed in the coal may become the preferential channels of gas-water seepage under the impact of injection pressure, and then influence the recovery of coalbed methane (CBM) and CO2 storage.
Ziliang WANG +4 more
doaj +1 more source
Analysis of the causes of rising water content in the late stage of poly-drive in western block III of Area B and study of adjustment methods [PDF]
Seizing the main contradiction of fast water-bearing rebound in western block III, analyzing the reasons of fast water-bearing rebound in response to the contradiction, meanwhile, by understanding the mechanism of polymer oil drive and combining the ...
Wu Qiong
doaj +1 more source
The purpose of this study is to investigate the effects of fuel temperature and nozzle length‐diameter ratio (L/D) on biodiesel spray characteristics, under high injection pressure and high ambient pressure, by numerical method.
Limin Geng +4 more
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Study the effect of injection pressure of a mixture of diesel fuel and vegetable oil on exhaust emissions of diesel engines by simulation [PDF]
Biofuels are interested in using alternative fuel in diesel engines because those are friendly to the environment and can be recycled. However, characteristics of chemical and physical differences compared to diesel fuel.
Trung Pham Dinh +2 more
doaj +1 more source
In this study, the combustion, performance, emissions, noise, and vibration characteristics of a single-cylinder, four-stroke, air-cooled diesel engine used for non-road purposes were investigated by controlling different injection pressures with a ...
Nurullah Gültekin +2 more
doaj +1 more source
AbstractIn practical hydraulic fracturing, limited by the operating power of the syringe pump and long transportation of pipelines, it is often difficult to maintain high pumping fluid pressure to crack the reservoir rock in deep formation.
Yu Zhao, Yongfa Zhang, Pengfei He
openaire +1 more source
Effect of Injection Site on Fault Activation and Seismicity during Hydraulic Fracturing
Hydraulic fracturing is a key technology to stimulate oil and gas wells to increase production in shale reservoirs with low permeability. Generally, the stimulated reservoir volume is performed based on pre-existing natural fractures (NF).
Zhaohui Chong, Xuehua Li, Xiangyu Chen
doaj +1 more source
Numerical study of heat injection CO2 to increase CH4 production based on gas-water two-phase flow
The technology of CO2-enhanced coalbed methane (CO2-ECBM) can reduce greenhouse gas emissions, and has the function of clean energy production and environmental protection.
Linfeng ZHANG +5 more
doaj +1 more source
The variations of reservoir stress caused by the multi-stage and discontinuous nature of the process in the CO2 geological storage, leading to the change of permeability and pore structure of the rock, have a direct impact on CO2 injection and storage ...
MI Zhao-xu 1, WANG Fu-gang 1, SHI Na 2, YU Jing-zong 3, SUN Zhao-jun 1
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MODIFICATION AND PERFORMANCE OF DEVICE FOR TESTING THE DIESEL ENGINE INJECTOR [PDF]
iesel engine, but most of it is operating manually, maintenance and repair centers mostly have used the manually device which depended on the hand of operator to operate it therefore there are inaccuracies in tests.
Mayada Abdel Razek +3 more
doaj +1 more source

