88E 7.14% 1.3¢ 88 energy limited

Ann: Operations Update, page-2

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    18 July 2017
    88 Energy Limited
    Icewine#2 Operations Update
    88 Energy Limited (“88 Energy”, “the Company”, “Operator”) (ASX, AIM: 88E) is pleased to provide an update on Project Icewine, located onshore North Slope of Alaska.
    • Icewine#2 well shut-in on 10th July to allow for imbibition and pressure build-up
    • Analyses of flowback results to date ongoing
    Icewine#2 Operations Update
    The Icewine#2 well was shut-in on the 10th July for a six week period to allow for imbibition and pressure build up to occur. Prior to shut-in, 16% of the stimulation fluid had been recovered from the reservoir under natural flowback, with trace hydrocarbons returned at surface.
    Imbibition, or “soaking”, allows for absorption of frac water into the formation, which may displace reservoir water molecules that are restricting hydrocarbon molecules from flowing into the created fractures. The pressure build up data will provide insights into the permeability created by the stimulation. Ultimately, the post shut-in well performance will determine the next steps required, such as continuing to flowback naturally or the introduction of artificial lift (eg swabbing).
    The HRZ shale shares several characteristics with other successful shales in the Lower 48; however, there is no blueprint or benchmark against which it is meaningful to measure performance as there are also many differences. At this juncture, the Joint Venture is of the view that further analyses are required to determine what impact the performance of the well to date has on the probability of success for the play. These analyses include, but are not limited to;
    • comparison of the flowback rate against expected the expected flowback rate based on reservoir parameters and the successful execution of the fracture stimulation;
    • reconciliation of the petrophysical model, and the apparent in-situ hydrocarbons, with the hydrocarbons recovered to surface to date.
    These analyses are ongoing and will be communicated once complete.
    Further updates will be made as and when appropriate throughout the testing program.
    Yours faithfully
    Dave Wall
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