Some expert opinion on Horizon explosion and aftermath
"Lastly, they expect higher costs to conduct offshore E&P operations. Similar to Congress mandating double-hulled tankers after the Exxon Valdez spill, they expect a host of regulations to be put in place to add “double and triple redundancy” in offshore operations to prevent incidents like the Deepwater Horizon explosion and the Macondo blowout and spill from repeating in the future."
Yesterday on BNN.ca the guest expert mentioned he believes going forward drillers will need to drill two holes into the reservoirs instead of one. The second line will be used as a relief line.
Drilling a hole can cost up to 100 million, so it could have a significant impact. But you would think instead of drilling a totally separate hole they could run a relief value of the main line closer to the surface.
It seems to me we need even stronger and more versatile BOP as this would not have been an issue of monumental proportion if those subs could go down there and close the valves manually within a day or two of the accident.