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View Diary: Top Kill LiveBlog - Diary 3 (250 comments)

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  •  The last CBL was done (6+ / 0-)

    on April 15. I would like to know what further cementing was done between then and April 20 when the well blew.

    Maybe there is some truth to the rumors that Schlumberger abandoned ship because they knew there was a very high possibility of a blowout.

    •  I found this statement from Halliburton (8+ / 0-)

             * Halliburton performed a variety of services on the rig, including cementing, and had four employees stationed on the rig at the time of the accident. Halliburton's employees returned to shore safely, due, in part, to the brave rescue efforts by the U.S. Coast Guard and other organizations.
             * Halliburton had completed the cementing of the final production casing string in accordance with the well design approximately 20 hours prior to the incident. The cement slurry design was consistent with that utilized in other similar applications.
             * In accordance with accepted industry practice approved by our customers, tests demonstrating the integrity of the production casing string were completed.
             * At the time of the incident, well operations had not yet reached the point requiring the placement of the final cement plug which would enable the planned temporary abandonment of the well, consistent with normal oilfield practice.
             * We are assisting with planning and engineering support for a wide range of options designed to secure the well, including a potential relief well.

      Source: halliburton.com

      (Italics mine)

      Note that the only tests done after April 15 were pressure tests that produced questionable data and not a CBL which may have given better data on the integrity of the cementing done on the lower casings.

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