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Showing 1 to 20 of 569 for “"sandstone"”.

  1. A study of the Warrensburg sandstone

    … methods to a study of the Warrensburg channel sandstone. The area covered by this problem includes parts of Lafayette, Johnson, and Henry Counties, Missouri where the Warrensburg sandstone is exposed. The collection of samples and field data was done during the summer of 1951 and the laboratory …

    missouri Repository record for A study of the Warrensburg sandstone (opens in a new tab)

  2. Fracture Growth Kinematics in Tight Sandstone Reservoirs

    … connectivity of fractures in low permeability sandstone reservoirs is essential for optimal hydrocarbon exploitation. In a linear elastic fracture mechanics framework, it is generally assumed that fractures widen in aperture while they propagate in length or height. However, it is also …

    texas Repository record for Fracture Growth Kinematics in Tight Sandstone Reservoirs (opens in a new tab)

  3. Pillar design for St. Peter sandstone formation

    … sands produced primarily from St. Peter Sandstone are used for hydraulic fracturing in the petroleum industry, glassmaking, chemicals, ceramics, filtration and the foundry industry in the US. The recent high demand for silica sands for hydraulic fracturing has triggered increased …

    must-thes Repository record for Pillar design for St. Peter sandstone formation (opens in a new tab)

  4. Subcritical time-dependent response of Berea sandstone

    … Inelastic time-dependent deformation of Berea sandstone is evaluated in the compression tests, with a stepwise loading method applied. To assess time-dependent behavior, axial and lateral strains are measured during uniaxial compression, as well as triaxial drained and undrained compression …

    uiuc Repository record for Subcritical time-dependent response of Berea sandstone (opens in a new tab)

  5. Factors influencing salt-induced weathering of building sandstone.

    … in causing salt-induced weathering of building sandstone was investigated by looking at the changes in a series of weathering indicators selected. These were mainly, porosity and pore size distribution changes, chemical composition and colour changes. Laboratory studies involved the use of …

    rgu Repository record for Factors influencing salt-induced weathering of building sandstone. (opens in a new tab)

  6. Synapsid Burrows in the Lower Jurassic Navajo Sandstone, Utah

    … interdune deposits of the Lower Jurassic Navajo Sandstone near Moab, Utah are interpreted as synapsid burrows based on similar morphologies to fossil and extant synapsid burrows. Two types of burrows are distinguished by their size. Type I burrows are large diameter and comprise complex, high …

    ku Repository record for Synapsid Burrows in the Lower Jurassic Navajo Sandstone, Utah (opens in a new tab)

  7. A Study of Residual Oil Saturation in Heterogeneous Sandstone Experiments

    … data of the target porous media -Antolini sandstone outcrops. A capillary pressure measurement device was designed and made capable of desaturating four sandstone samples simultaneously with the realistic reservoir fluids and reservoir temperature. The study showed that polymerflood reduces …

    texas Repository record for A Study of Residual Oil Saturation in Heterogeneous Sandstone Experiments (opens in a new tab)

  8. Soft-sediment Deformation and Dune Collapse in the Navajo Sandstone

    … Zion National Park follows an outcrop of Navajo Sandstone, which displays a uniquely well-exposed assemblage of features associated with failure of the lee face of a large eolian dune, and run-out over an expanse of interdune sediments downwind of that bedform. Exposed features include dramatic …

    loma-linda Repository record for Soft-sediment Deformation and Dune Collapse in the Navajo Sandstone (opens in a new tab)

  9. Sandstone pore structure--a quantitative analysis of digital SEM images

    Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1987.

    mit Repository record for Sandstone pore structure--a quantitative analysis of digital SEM images (opens in a new tab)

  10. Control of Biodeterioration of Sandstone on the Fisher Fine Arts Library

    The study focuses on the presence of biocolonization on the Fisher Fine Arts Library, where two visually distinct types of biocolonization are found, green and black. The former grow in the damper, lower courses, while the latter occurs in the middle courses. The top courses of the apse are …

    penn Repository record for Control of Biodeterioration of Sandstone on the Fisher Fine Arts Library (opens in a new tab)

  11. Sequence Stratigraphy and Resource Assessment of Aux Vases Sandstone in Illinois

    … tool for reducing cost of exploiting Aux Vases Sandstone resources. Sequence stratigraphy can be used in delineating areas best for hydrocarbons and water recovery, highlighting potential problems in quarrying operations, outlining regions where calcareous lithologies of the Aux Vases Sandstone

    uiuc Repository record for Sequence Stratigraphy and Resource Assessment of Aux Vases Sandstone in Illinois (opens in a new tab)

  12. Modern Invertebrate Footprints Compared with Fossil Footprints from the Coconino Sandstone (Permian)

    … (Paleohelcura sp.) of the Permian Coconino sandstone of Northern Arizona, and similar footprints of other sandstone. Fine grained sand (similar to that composing the Coconino sandstone) was placed in a plexiglass tank to form slopes of various angles. The crayfish walked up and down slopes …

    loma-linda Repository record for Modern Invertebrate Footprints Compared with Fossil Footprints from the Coconino Sandstone (Permian) (opens in a new tab)

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