• Login
    About WHOAS
    View Item 
    •   WHOAS Home
    • USGS Science Center for Coastal and Marine Geology
    • Energy and Geohazards
    • View Item
    •   WHOAS Home
    • USGS Science Center for Coastal and Marine Geology
    • Energy and Geohazards
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of WHOASCommunities & CollectionsBy Issue DateAuthorsTitlesKeywordsThis CollectionBy Issue DateAuthorsTitlesKeywords

    My Account

    LoginRegister

    Statistics

    View Usage Statistics

    Scientific results from Gulf of Mexico Gas Hydrates Joint Industry Project Leg 1 drilling : introduction and overview

    Thumbnail
    View/Open
    Ruppel el al.pdf (657.0Kb)
    Date
    2008-05-21
    Author
    Ruppel, Carolyn D.  Concept link
    Boswell, Ray M.  Concept link
    Jones, E.  Concept link
    Metadata
    Show full item record
    Citable URI
    https://hdl.handle.net/1912/2615
    As published
    https://doi.org/10.1016/j.marpetgeo.2008.02.007
    DOI
    10.1016/j.marpetgeo.2008.02.007
    Keyword
     Gas hydrate; Hazard; Ocean drilling; Borehole; Gulf of Mexico 
    Abstract
    The Gulf of Mexico Gas Hydrates Joint Industry Project (JIP) is a consortium of production and service companies and some government agencies formed to address the challenges that gas hydrates pose for deepwater exploration and production. In partnership with the U.S. Department of Energy and with scientific assistance from the U.S. Geological Survey and academic partners, the JIP has focused on studies to assess hazards associated with drilling the fine-grained, hydrate-bearing sediments that dominate much of the shallow subseafloor in the deepwater (>500 m) Gulf of Mexico. In preparation for an initial drilling, logging, and coring program, the JIP sponsored a multi-year research effort that included: (a) the development of borehole stability models for hydrate-bearing sediments; (b) exhaustive laboratory measurements of the physical properties of hydrate-bearing sediments; (c) refinement of new techniques for processing industry-standard 3-D seismic data to constrain gas hydrate saturations; and (d) construction of instrumentation to measure the physical properties of sediment cores that had never been removed from in situ hydrostatic pressure conditions. Following review of potential drilling sites, the JIP launched a 35-day expedition in Spring 2005 to acquire well logs and sediment cores at sites in Atwater Valley lease blocks 13/14 and Keathley Canyon lease block 151 in the northern Gulf of Mexico minibasin province. The Keathley Canyon site has a bottom simulating reflection at not, vert, ~ 392 m below the seafloor, while the Atwater Valley location is characterized by seafloor mounds with an underlying upwarped seismic reflection consistent with upward fluid migration and possible shoaling of the base of the gas hydrate stability (BGHS). No gas hydrate was recovered at the drill sites, but logging data, and to some extent cores, suggest the occurrence of gas hydrate in inferred coarser-grained beds and fractures, particularly between 220 and 330 m below the seafloor at the Keathley Canyon site. This paper provides an overview of the results of the initial phases of the JIP work and introduces the 15 papers that make up this special volume on the scientific results related to the 2005 logging and drilling expedition.
    Description
    This paper is not subject to U.S. copyright. The definitive version was published in Marine and Petroleum Geology 25 (2008): 819-829, doi:10.1016/j.marpetgeo.2008.02.007.
    Collections
    • Energy and Geohazards
    Suggested Citation
    Article: Ruppel, Carolyn D., Boswell, Ray M., Jones, E., "Scientific results from Gulf of Mexico Gas Hydrates Joint Industry Project Leg 1 drilling : introduction and overview", Marine and Petroleum Geology 25 (2008): 819-829, DOI:10.1016/j.marpetgeo.2008.02.007, https://hdl.handle.net/1912/2615
     

    Related items

    Showing items related by title, author, creator and subject.

    • Thumbnail

      Geologic framework of the 2005 Keathley Canyon gas hydrate research well, northern Gulf of Mexico 

      Hutchinson, Deborah R.; Hart, Patrick E.; Collett, Timothy S.; Edwards, K. M.; Twichell, David C.; Snyder, Fred (Elsevier B.V., 2008-05-10)
      The Keathley Canyon sites drilled in 2005 by the Chevron Joint Industry Project are located along the southeastern edge of an intraslope minibasin (Casey basin) in the northern Gulf of Mexico at 1335 m water depth. Around ...
    • Thumbnail

      Downhole well log and core montages from the Mount Elbert Gas Hydrate Stratigraphic Test Well, Alaska North Slope 

      Collett, Timothy S.; Lewis, R. E.; Winters, William J.; Lee, Myung W.; Rose, Kelly K.; Boswell, Ray M. (Elsevier B.V., 2010-03-27)
      The BPXA-DOE-USGS Mount Elbert Gas Hydrate Stratigraphic Test Well was an integral part of an ongoing project to determine the future energy resource potential of gas hydrates on the Alaska North Slope. As part of this ...
    • Thumbnail

      Assessing sulfate reduction and methane cycling in a high salinity pore water system in the northern Gulf of Mexico 

      Pohlman, John W.; Ruppel, Carolyn D.; Hutchinson, Deborah R.; Downer, R.; Coffin, Richard B. (Elsevier B.V., 2008-05-10)
      Pore waters extracted from 18 piston cores obtained on and near a salt-cored bathymetric high in Keathley Canyon lease block 151 in the northern Gulf of Mexico contain elevated concentrations of chloride (up to 838 mM) and ...
    All Items in WHOAS are protected by original copyright, with all rights reserved, unless otherwise indicated. WHOAS also supports the use of the Creative Commons licenses for original content.
    A service of the MBLWHOI Library | About WHOAS
    Contact Us | Send Feedback | Privacy Policy