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ShellNews.net: Potential catastrophic consequences if Sakhalin ERD wells allegations are true

THE POSTINGS ON LIVE CHAT

From a Shell Insider

The messages posted about the ERD wells through young faults and process facilities deserve to be highlighted. If true, these are both very serious issues.

Due to ice and fog, access to the Sakhalin offshore production facilities during the winter months is severely limited, and they are therefore designed to be operated unmanned. In the event that a fault is detected in
the production system, the facilities are designed to shut down automatically, cutting the supply of gas to the LNG plant onshore. Manual intervention, investigation and rectification of the fault are then required
prior to restarting. Faults are more likely to occur if the system design does not incorporate adequate contingency.

An ERD (Extended Reach Development) well is a extended reach well, designed to drain a reservoir at a distance (up to 8km) from a platform. If an ERD well is drilled through an active geological fault, any geological activity is likely to rupture the well casing and production tubing, causing a blowout (an uncontrolled release of hydrocarbons from the reservoir).

The environmental consequences of such an event in winter would be catastrophic as it may be impossible to undertake blowout control measures until the following summer. This could result in the discharge of millions
of tons of oil into an ice filled sea, and the Exxon Valdez would lookinsignificant in comparison.  And the whales?

Shell Insider comments end.

(see current posings on Live Chat)

(or go to: Live Chat: Shell Sakhalin-2 Project: “wait until they discover the flawed ERD well designs” )

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