. >> eric smith of tulane university joining us on the program. dr. h, talk about the two relief wells being drilled right now and how they are approaching the source of the leak and how they are expected, maybe by august, to completely set this off? we hope that this scenario words. right now with the cap that they are putting on, but that it -- but if that does not work, what is bp doing to drill two relief wells to stop this leak? >> the relief wells are the only permanent solution and that has always been the case. no matter what is done over the next -- the last 20 days or so, we were always going to drill a relief well. the idea is to drill -- start about 1,000 feet away from the offending well bore, drill down 5,000 feet into the surface, and then make a 45 degree turn in intercept the bottom of the original well for about 18,000 feet. this the same sort of thing you -psaw them pumpiig on the top kl it him. it should float into the well bore and produce pressure to eliminate the oil and gas coming out of the reservoir going up the well bore. the

eric smith from tulane university. thank you for being with us.the top kill procedure and the jump shot. neither worked. they are now on -- the junk shot. neither worked. they are now on their ninth procedure. explain the procedure they are putting together. >> they are doing to procedures. -- they are doing two procedures. they're cutting away the wreckage of the rig. it has been that laying there. they will cut that away. they will clean up the edge. then, they will install a cap over its which will be a into a drill pipe that will go up to the drillship. it is a first cousin of the things they tried earlier on. this is not a permanent fix. this is something to hold things together until they can complete the a relief well. if this does not work, they have one more trick up their sleeve which is to remove the cap and install a new b.o.p. over the b.o.p. >> there was a problem before where they tried the top hat scenario. how dii they stop the freezing this time? >> therr is less salt water available. this is a lot closer to the source of the oil

. >> eric smith of tulane university joining us on the program. dr. h, talk about the two relief wells being drilled right now and how they are approaching the source of the leak and how they are expected, maybe by august, to completely set this off? we hope that this scenario words. ght now with the cap that they are putting on, but that it -- but if that doesot work, what is bp doing to drill two relief wells to stop this leak? >> the relief wells are th only permanen solution and that has always been the case. no matter what is done over the next -- the last 20 days or so, we were always going to drill a relief well. the idea is to drill -- start about 1,000 feet away from the offending well bore, drill down 5,000 feet into the surface, and then make a 45 degree turn in intercept the bottom of the original well for about 18,000 ft. this the same sort of thing yo -psaw them pumpiig on the top kl it him. it should float into the well bore and produce pressure to eliminate the oil and gas coming out of the reservoir going up the well bore. then they wi