Anisotropic pore structure of shale and gas injection-induced nanopore alteration: A small-angle neutron scattering study
نویسندگان
چکیده
منابع مشابه
Small angle neutron scattering
Small Angle Neutron Scattering (SANS) is a technique that enables to probe the 3-D structure of materials on a typical size range lying from ∼ 1 nm up to ∼ a few 100 nm, the obtained information being statistically averaged on a sample whose volume is ∼ 1 cm3. This very rich technique enables to make a full structural characterization of a given object of nanometric dimensions (radius of gyrati...
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We have used small-angle neutron scattering to characterize the polymer conformations of four nonionic water soluble polymers: poly~ethylene oxide!, poly~N-vinyl-2-pyrollidone!, poly~N-vinyl-2-caprolactam!, and an N-methyl, N-vinylacetamide/N-vinyl-2-caprolactam copolymer. The last three of these are able to kinetically suppress hydrate crystallization, and their inhibitor activity ranges from ...
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Poly(vinyl alcohol) (PVA) hydrogels are formed from PVA solution when physical cross-links form during freeze/thaw cycling. By applying a stress during the freeze/thaw process, PVA hydrogels with anisotropic mechanical properties are produced. We have used small- and ultra-small-angle neutron scattering to study the structure at length scales of 2 nm to 10 mum. By supplementing the neutron data...
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Heparin is a linear, anionic polysaccharide that is widely used as a clinical anticoagulant. Despite its discovery 100 years ago in 1916, the solution structure of heparin remains unknown. The solution shape of heparin has not previously been examined in water under a range of concentrations, and here is done so in D2 O solution using small-angle neutron scattering (SANS). Solutions of 10 kDa h...
متن کاملNeutron small angle scattering of hemoglobin.
Neutron small angle scattering experiments were performed on human hemoglobin in various mixtures of Hz0 and DzO. It was possible to observe the inter-particle effect without corrections for resolution and to verify the first minimum and the secondary maximum in accordance with the theoretical scattering curve. The accuracy in determining the radius of gyration has been improved over that deter...
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ژورنال
عنوان ژورنال: International Journal of Coal Geology
سال: 2020
ISSN: 0166-5162
DOI: 10.1016/j.coal.2020.103384