July 14- An informative update on the Gulf disaster from McClatchy Bureau's Mark Seibel. A 'dramatic moment' is in progress. The previous cap, which collected 20-30% of the oil and gas flow, will be removed, allowing 100% flow until a new cap is put in place in several days which can capture potentially all of the oil flow. The risk here is that the pressure building inside the capped well may cause eruptions through the bore walls into the intermediate sub-surface strata- which may later destabilize, allowing potentially widespread and uncontrollable further leakage.
Update July 14: Afraid of precisely that scenario, the latest cap effort has been stopped pending further analysis.
"BP's work to cap its Gulf of Mexico gusher was in limbo Wednesday after the federal government raised concerns the operation could put damaging pressure on the busted well and make the leak worse." (story) BP has admitted that the well-bore is damaged and 'leaking' 1000 feet below the seafloor; relief well drilling also stopped; fears of large scale destabilization of seafloor mount (see Doomsday: How BP Gulf disaster may have triggered a 'world-killing' event)
Rumours BP is preparing an EMFCG- (Explosive Magnetic Flux Compression Generator), probably powered with a small nuclear weapon, to seal the seafloor. (report) (LANL PDF: EMFCG weapon)(EMFCG PDF 2)