Results 61 to 70 of about 30,243 (255)

Interfacial adsorption characteristics of surfactant‐modified nanoparticles: Equilibrium and dynamic effects of salinity at the oil–water interface

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Surfactant‐modified nanoparticles adsorb at the oil–water interface, enabling interfacial stabilization and microemulsion formation. Abstract This study systematically investigated the interfacial behaviour of silicon dioxide (SiO2) and aluminium oxide (Al2O3) nanoparticles (NPs) functionalized with cationic (CTAB), anionic (SDS), and nonionic (Triton ...
Behrooz Ahmadi   +2 more
wiley   +1 more source

Geology of the Transverse Range Province, Southern California [PDF]

open access: yes, 1954
The Transverse Range province of southern California is an elongate geomorphic and structural unit that trends essentially east-west across parts of Santa Barbara, Ventura, Los Angeles, San Bernardino, and Riverside Counties (pl. 4).
Bailey, Thomas L., Jahns, Richard H.
core  

Nonequilibrium and Nonlinear Dynamics in Geomaterials I : The Low Strain Regime

open access: yes, 2006
Members of a wide class of geomaterials are known to display complex and fascinating nonlinear and nonequilibrium dynamical behaviors over a wide range of bulk strains, down to surprisingly low values, e.g., 10^{-7}.
Banerjee   +34 more
core   +2 more sources

Petrographic characterization to build an accurate rock model using micro-CT: Case study on low-permeable to tight turbidite sandstone from Eocene Shahejie Formation [PDF]

open access: yes, 2018
Pore scale flow simulations heavily depend on petrographic characterizing and modeling of reservoir rocks. Mineral phase segmentation and pore network modeling are crucial stages in micro-CT based rock modeling. The success of the pore network model (PNM)
Bultreys, Tom   +8 more
core   +2 more sources

Spatially resolved 23Na magnetic resonance dispersion measurement in porous media

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Quantitative 23Na MRI was employed to analyze dispersion in realistic core plug samples and was compared with the conventional breakthrough curve. 23Na MRI provided a more effective aassessment of core plug heterogeneity than the conventional method. Abstract Tracer tests are widely used in the petroleum industry to assess reservoir core plugs, relying
Rheya Rajeev   +5 more
wiley   +1 more source

Differences in formation process of tight sandstone gas reservoirs in different substructures in Changling Fault Depression, Songliao Basin, NE China

open access: yesPetroleum Exploration and Development, 2017
The tight sands reservoirs in the Lower Cretaceous Denglouku Formation in Changling Fault Depression of Songliao Basin, NE China were taken as study object.
Mingjie LIU   +4 more
doaj   +1 more source

Pre-Devonian stratigraphy and structure of the Prion Beach-Rocky Boat Inlet-Osmiridium Beach coastal section, southern Tasmania [PDF]

open access: yes, 1983
The pre-Devonian stratigraphy of the Prion Beach to Surprise Bay area is composed of four stratigraphic units. The oldest is a (?) Precambrian, slightly metamorphosed, massive dolomite.
Berry, RF, Harley, S
core   +2 more sources

Optimal mud pressure design using nonlinear failure criteria for wellbores in shaley sedimentary reservoir

open access: yesDeep Underground Science and Engineering, EarlyView.
The present study uses the Modified Mohr‐Coulomb true‐triaxial failure criterion (MMC_TT), which predicts the strength of rock better than the MGC criterion in laboratory true‐triaxial tests to overcome the limitations. Moreover, based on the data from previously published five vertical wells in the Krishna‐Godavari basin (K‐G basin), an empirical ...
Ravindra K. Burnwal, Aditya Singh
wiley   +1 more source

Subsurface biodegradation of crude oil in a fractured basement reservoir, Shropshire, UK [PDF]

open access: yes, 2017
Peer reviewedPublisher ...
Baba, Mas'ud   +3 more
core   +1 more source

Failure mechanism of the coal wall at the working face based on an eccentric compression mechanical model

open access: yesDeep Underground Science and Engineering, EarlyView.
In this study, the nonuniform distribution of the bearing pressure in front of the coal wall has been revealed based on in situ monitoring data and numerical simulation results. Therefore, an eccentric compression mechanical model of the coal wall was established to study the deformation and failure characteristics of a coal wall. The slenderness ratio
Maolin Tian   +6 more
wiley   +1 more source

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