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    Avoiding pitfalls in shallow seismic reflection surveys

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    SteeplesD_Geophysics_63(4)1213.pdf (3.422Mb)
    Issue Date
    1998-07-01
    Author
    Steeples, Don W.
    Miller, Richard D.
    Publisher
    Society of Exploration Geophysicists
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Metadata
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    Abstract
    Acquiring shallow reflection data requires the use of high frequencies, preferably accompanied by broad bandwidths. Problems that sometimes arise with this type of seismic information include spatial aliasing of ground roll, erroneous interpretation of processed airwaves and air‐coupled waves as reflected seismic waves, misinterpretation of refractions as reflections on stacked common‐midpoint (CMP) sections, and emergence of processing artifacts. Processing and interpreting near‐surface reflection data correctly often requires more than a simple scaling‐down of the methods used in oil and gas exploration or crustal studies. For example, even under favorable conditions, separating shallow reflections from shallow refractions during processing may prove difficult, if not impossible. Artifacts emanating from inadequate velocity analysis and inaccurate static corrections during processing are at least as troublesome when they emerge on shallow reflection sections as they are on sections typical of petroleum exploration. Consequently, when using shallow seismic reflection, an interpreter must be exceptionally careful not to misinterpret as reflections those many coherent waves that may appear to be reflections but are not. Evaluating the validity of a processed, shallow seismic reflection section therefore requires that the interpreter have access to at least one field record and, ideally, to copies of one or more of the intermediate processing steps to corroborate the interpretation and to monitor for artifacts introduced by digital processing.
    Description
    This is the publisher's version, also available electronically from "http://library.seg.org".
    URI
    http://hdl.handle.net/1808/17268
    DOI
    https://doi.org/10.1190/1.1444422
    ISSN
    0016-8033
    Collections
    • Geology Scholarly Works [245]
    Citation
    Don W. Steeples and Richard D. Miller (1998). ”Avoiding pitfalls in shallow seismic reflection surveys.” Avoiding pitfalls in shallow seismic reflection surveys 63, SPECIAL SECTION: SHALLOW SEISMIC REFLECTION PAPERS, 1213-1224, http://dx.doi.org/10.1190/1.1444422

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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