• Login
    View Item 
    •   Home
    • Theses & Dissertations
    • 2014 - Mines Theses & Dissertations
    • View Item
    •   Home
    • Theses & Dissertations
    • 2014 - Mines Theses & Dissertations
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of Mines RepositoryCommunitiesPublication DateAuthorsTitlesSubjectsThis CollectionPublication DateAuthorsTitlesSubjects

    My Account

    Login

    Mines Links

    Arthur Lakes LibraryColorado School of Mines

    Statistics

    Display Statistics

    3-D seismic characterization of the Niobrara Formation, Silo field, Laramie County, Wyoming

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    Finley_mines_0052N_10417.pdf
    Size:
    13.22Mb
    Format:
    PDF
    Description:
    3-D seismic characterization of ...
    Download
    Author
    Finley, Elena
    Advisor
    Sonnenberg, Stephen A.
    Date issued
    2014
    Date submitted
    2014
    Keywords
    silo
    Permian salt
    Niobrara
    Wyoming
    basement
    Oil fields -- Wyoming -- Laramie County
    Geology, Structural -- Wyoming -- Laramie County
    Faults (Geology) -- Wyoming -- Laramie County
    Geology, Stratigraphic
    Denver Basin
    Niobrara Formation
    
    Metadata
    Show full item record
    URI
    http://hdl.handle.net/11124/412
    Abstract
    Silo Field, located approximately 17 miles northeast of Cheyenne, Wyoming, is an important Niobrara oil field. The field produces from open, vertical, natural fractures that trend northwest-southeast across the field. Several proposed ideas for fracture genesis include: differential compaction or folding over basement highs, proximity to regional fault and fracture systems, pore fluid pressure increases due to hydrocarbon generation, and reactivation of pre-existing faults. This study integrated previous work, 3-D seismic, and FMI log analysis in order to determine the nature of faulting and fracturing in Silo Field, the nature of the Permian salt edge, and how basement structure tied in with the observed features. The main features observed in the seismic data were: a fault-bound syncline (possible wrench faults penetrating from the basement through the Niobrara) in the northwestern corner, a possible listric detached fault system in the Niobrara which may be a polygonal fault system in the south-central area, and a northwest-southeast trending Permian salt edge. The overall structure of Silo Field is a structural monocline. The fault-bound syncline feature is present at all of the mapped horizons (basement, Wolfcamp, Permian salt, Sundance, Dakota, Niobrara, Pierre event, and the shallow horizon). In this study, the basement structure appeared to have some control on all of the main features. The open fracture directions within the main field area were oriented parallel to the syncline faults. A lineament analysis showed that some of the listric faults corresponded to surface lineaments, indicating that the fault orientations might be influenced by basement faults. The location of the Permian salt edge appears to follow the syncline faults relatively closely, meaning that basement structure might be controlling the salt edge in Silo Field. Finally, the structural monocline present in the field is partially controlled by differential compaction over the salt edge. However, based on the interpretations of possible basement faults that follow surface lineaments, the structural monocline could also have a component of basement control. All of this information demonstrates that Silo Field is a field heavily controlled by the nature of the basement. By understanding the basement structure of the entire field, it is possible to determine the best way to develop the field in the future.
    Rights
    Copyright of the original work is retained by the author.
    Collections
    2014 - Mines Theses & Dissertations

    entitlement

     
    DSpace software (copyright © 2002 - 2023)  DuraSpace
    Quick Guide | Contact Us
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.