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InterOil Corporation Message Board

  • pepperspray62 pepperspray62 Jan 18, 2012 7:48 AM Flag

    BFD - spudding an "appraisal well"

    Appraisal wells are to determine flow rates and economic feasibility.


    When exploratory drilling is successful, more wells are drilled
    to determine the size and the extent of the field. Wells drilled
    to quantify the hydrocarbon reserves found are called ‘outstep’
    or ‘appraisal’ wells.

    The appraisal stage aims to evaluate the
    size and nature of the reservoir, to determine the number of
    confirming or appraisal wells required, and whether any
    further seismic work is necessary.

    The technical procedures in
    appraisal drilling are the same as those employed for explo-
    ration wells.......... A number of wells may be
    drilled from a single site, which increases the time during
    which the site is occupied.

    Deviated or directional drilling at
    an angle from a site adjacent to the original discovery bore-
    hole may be used to appraise other parts of the reservoir, in
    order to reduce the land used or ‘foot print’.

    Why so slow on the appraisal well(s)?


    Why appraisal well if deal is in hand?


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