Horse hill ... ongoing plans.... for Kim and Portland3 May 2021 06:10
“ At the end of the accounting period, further well intervention operations on HH-1 were safely completed, optimising oil flow by isolating the Kimmeridge perforations, by reperforating the full Portland oil producing section, by insertion of a new simplified production tubing string and by setting the downhole pump at a deeper level to increase pumping efficiency. These improvements set HH-1 up for long term continuous and optimised oil production from the Portland. Water injection plus further infill development of both Portland (HH-3 well) and Kimmeridge (HH-4 well) offer upside for the Horse Hill field.
Post-period the intervention was immediately followed by an ongoing series of multi-week production optimisation trials to achieve an optimum balance between oil revenues and water handling and other operational costs. Trials include well-cycling (i.e., shutting in the well for a set period each day to reduce water inflow) and pump fill optimisation. The trials continued for several months. Early results are encouraging, with stable oil and water influx levels achieved by early 2021.
As of end-February, over 137,000 bbl of Brent quality crude had been produced and exported from the Kimmeridge and Portland pools.
In line with the challenging oil price environment, significant further efforts have also been made in managing and reducing operational costs. From January 2020 to January 2021 our total operating costs have reduced by 66%. The savings will help place Horse Hill in a good position to take advantage of the strengthening Brent crude prices seen in the past month.
It is expected that further HH-3 Portland and HH-4 Kimmeridge infill wells will be planned in detail and drilled at Horse Hill.”
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