2D micromodel studies of pore-throat clogging by pure fine-grained sediments and natural sediments from NGHP-02, offshore India

Fine-grained sediments, or “fines,” are nearly ubiquitous in natural sediments, even in the predominantly coarse-grained sediments that host gas hydrates. Fines within these sandy sediments can be mobilized and subsequently clog flow pathways while methane is being extracted from gas hydrate as an energy resource. Using two-dimensional (2D) micromodels to test the conditions in which clogging occurs provides insights for choosing production operation parameters that optimize methane recovery in the field. During methane extraction, several processes can alter the mobility and clogging potential of fines: (1) fluid flow as the formation is depressurized to release methane from gas hydrate, (2) shifting pore-fluid...

Categories: Data; Tags: 2D micromodel, Bay of Bengal, Department of Civil and Environmental Engineering, Geophysics, Indian Ocean, All tags... Krishna-Godavari Basin, Laboratory, Louisiana State University, Louisiana State University, Department of Civil and Environmental Engineering, Marine Geology, NGHP-02, NGHP-02-09, NGHP-02-16, Woods Hole Coastal and Marine Science Center, U.S. Geological Survey, bentonite, brine, calcium carbonate, clogging, deionized water, diatoms, earth material properties, fine-grained sediment, gas hydrate resources, geoscientificInformation, illite, image analysis, kaolin, laboratory experiments, mica, natural resource extraction, optical microscopy, permeability, silica silt, soil sciences, Fewer tags

Shorelines of the Louisiana coastal region used in shoreline change analysis

Sandy ocean beaches in the United States are popular tourist and recreational destinations and constitute some of the most valuable real estate in the country. The boundary between land and water along the coastline is often the location of concentrated residential and commercial development and is frequently exposed to a range of natural hazards, which include flooding, storm effects, and coastal erosion. In response, the U.S. Geological Survey (USGS) is conducting a national assessment of coastal change hazards. One component of this research effort, the National Assessment of Shoreline Change Project, documents changes in shoreline position as a proxy for coastal change. Shoreline position is an easily understood...

Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Breton Islands, Breton National Wildlife Refuge, CMGP, Chandeleur Islands, Coastal and Marine Geology Program, All tags... DSAS, Digital Shoreline Analysis System, East Timbalier Island, Grand Isle, Grand Terre Islands, Gulf of Mexico, HWL, High Water Line, Isles Dernieres, LA, LSU, Lanaux Island, Louisiana, Louisiana State University, MHW, Mean High Water, NOAA, NOS, National Assessment of Shoreline Change Project, National Ocean Service, National Oceanic and Atmospheric Administration, North America, Pelican Island, Shoreline, Shoreline Change, U.S. Geological Survey, UNO, UNO Pontchartrain Institute for Environmental Sciences, UNOPIES, USGS, United States, University of New Orleans, WHCMSC, Woods Hole Coastal and Marine Science Center, environment, geoscientificInformation, oceans, Fewer tags