Results 51 to 60 of about 361,980 (305)

CO2 plume evolution in a depleted natural gas reservoir: Modeling of conformance uncertainty reduction over time [PDF]

open access: yes, 2020
Uncertainty in the long-term fate of CO2 injected for geologic carbon sequestration (GCS) is a significant barrier to the adoption of GCS as a greenhouse-gas emission-mitigation for industry and regulatory agencies alike. We present a modeling study that
Doughty, C, Oldenburg, CM
core   +1 more source

Population of Nonmetallic Inclusions in Liquid High‐Silicon Electrical Steel in Contact With MgO–C Refractories Based on Recyclates and Environmentally Friendly Binders

open access: yesAdvanced Engineering Materials, EarlyView.
The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert   +6 more
wiley   +1 more source

Experimental and Molecular Dynamics Simulation Study on Influencing Factors of Barium Sulfate Scaling in Low-Permeability Sandstone Reservoirs

open access: yesApplied Sciences
This study aims to investigate the influencing factors and mechanisms of barium sulfate (BaSO4) scaling under low-permeability reservoir conditions, providing a scientific basis for water quality selection during water injection.
Haien Yang   +5 more
doaj   +1 more source

Effect of non-solvent additives on the structure and performance of PVDF hollow fiber membrane contactor for CO2 stripping [PDF]

open access: yes, 2012
Microporous polyvinylidene fluoride (PVDF) hollow fiber membranes with various non-solvent additives, i.e. lithium chloride, glycerol, polyethylene glycol (PEG-400), methanol and phosphoric acid, were fabricated for CO2 stripping via membrane contactors.
Ismail, Ahmad Fauzi   +2 more
core   +3 more sources

Interaction of Ladle Slag With Varying SiO2 Content and Recyclate‐Based MgO–C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
Ladle slags (CaO/Al2O3 = 1) with 1–20 wt% SiO2 were investigated in contact with industrial MgO–C refractories fabricated from fresh magnesia and 50 wt% recyclate. The sessile drop method at 1600°C reveals intensive gas formation, delayed slag infiltration in recyclate‐based samples, and, under high‐SiO2 slag, formation of a dense MgAl2O4‐rich ...
Anton Yehorov   +6 more
wiley   +1 more source

Multi-scale characterization of tight carbonate rocks based on digital cores

open access: yesFrontiers in Earth Science
The characterization of carbonate microstructure is of great significance for the evaluation of carbonate oil and gas resources. However, due to the complexity and heterogeneity of the pore structure of tight carbonate rocks, high-pressure mercury ...
Changsheng Wang   +11 more
doaj   +1 more source

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller   +8 more
wiley   +1 more source

Evolution of the Ordovician top boundary and its relationship to reservoirs' development, Ordos Basin

open access: yesPetroleum Exploration and Development, 2012
The control of structural evolution on the development of different types of Ordovician reservoirs in the Ordos Basin is discussed by studying the evolution of the Ordovician top boundary in geological times, and the mechanisms of formation and evolution
Xinquan RAN   +5 more
doaj   +1 more source

In Situ Permeability Estimation: A Comparison Between Acoustic And NMR Logs [PDF]

open access: yes, 1999
Permeability estimates from acoustic logs (Stoneley waves) and NMR logs were compared using data from a geologic section consisting of sandstone and shale beds. The permeability results show very good correlation for these two different methods.
Burns, Daniel R.   +2 more
core  

Activity of comets: Gas Transport in the Near-Surface Porous Layers of a Cometary Nucleus

open access: yes, 2011
The gas transport through non-volatile random porous media is investigated numerically. We extend our previous research of the transport of molecules inside the uppermost layer of a cometary surface (Skorov and Rickmann, 1995; Skorov et al. 2001).
Bhatia   +47 more
core   +3 more sources

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