The plan announced by the Admiral will involve an attempt to remove the last section of damaged “riser” or pipe and the flange to which it is attached. The plan does not involve replacing the flange and damaged pipe with a “shutoff valve”, instead a valve that allows the continued production of oil will be installed.
The current plan was suggested, in detail, by this writer in a Wordpress.com post on June 21, 2010.
Admiral Allen’s interview can be viewed/located on the Fox Site: . Click on videos tab on Fox site, in the “videos folder” click on Hot Topics – Click on Gulf Oil Crisis and click on “Admiral Allen on setbacks to gulf oil cleanup”.
The video URL is: http://video.foxnews.com/#/v/4255073/adm-allen-on-setbacks-to-gulf-oil-cleanup/?playlist_id=89939 , however, I’ve had intermittant problems with the link.
UPDATE: While FOX appears to have taken the video down – the video can be viewed on COMCAST here: http://www.comcast.net/video/Adm-Allen-on-Setbacks-to-Gulf-Oil-Cleanup/1530065287/
The discussion of the repair begins at the 2:52 mark of the interview.
The Admiral discusses the “repair” and “removal” of the damaged pipe at the end of the interview, when he responds to a question from Brian Kilmeade, “can you give us any additional information about the repair”, the Admiral discloses that BP has three different valve designs under consideration and that the damaged pipe will be removed and a new valve will be “bolted down” – to a new flange – on top of the wellhead.
The process begun Saturday (07/10/2010) has two major phases: removing equipment currently on top of the leak and installing new gear designed to fully contain the flow of oil.
BP began trying Saturday afternoon to remove the bolted top flange that only partially completed the seal with the old cap. Video images showed robotic arms working to unscrew its bolts. BP spokeperson said that could last into Monday depending on whether the flange can be pulled off from above, as BP hopes. If not, a specially designed tool will be used to pry apart the top and bottom flanges.
Once the top flange is removed, BP has to bind together two sections of drill pipe that are in the gushing well head. Then a 12-foot-long piece of equipment called a flange transition spool will be lowered and bolted over it.
View the video here: http://news.yahoo.com/s/ap/20100711/ap_on_bi_ge/us_gulf_oil_spilliew