Static kill injectivity testing commences on MC252 well

HOUSTON - BP started injectivity testing today at 19:05 (UK) and 13:05 (CDT) in advance of static kill operations. Based on the results of the injectivity test, pumping of drilling mud for the static kill could commence later today, following which a decision on the best way to cement the well will be determined. All operations are being carried out with the guidance and approval of the National Incident Commander. The aim of these procedures is to assist with the strategy to kill and isolate the well, and will complement the upcoming relief well operation.

The relief well remains the ultimate solution to kill and permanently cement the well. The first relief well, which started May 2, has set its final 9 7/8-inch casing. Operations on the relief wells are suspended during static kill operations. Depending upon weather conditions, mid-August is the current estimate of the most likely date by which the first relief well will intercept the Macondo well annulus, and kill and cement operations commenced.

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BP Press Office, London, +44 (0) 20 7496 4076, bppress@bp.com

BP Press Office, Houston, +1 281 366 4463, uspress@bp.com