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PostPosted: Fri Dec 29, 2017 8:54 pm 
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Joined: Sun Oct 05, 2008 6:48 pm
Posts: 4263
Location: UK
" On December 1, 1965, an underground blowout with a catastrophic outcome occurred near the village of Sleen, The Netherlands. At a depth of 1,944 m below ground level, serious well control issues were experienced while drilling well SLN-02 (Fig. S1) as a result of an unexpectedly high downhole pressure. Eventually, gas started erupting from a crater that formed several tens of meters away from the spud point. Within 40 min (during which all personnel were evacuated), numerous similar eruptions appeared within a 350-m radius that coalesced to form a crater that engulfed the entire well pad. Half an hour later, the drilling rig collapsed and eventually sank completely into the ground ..."

It is open access !!
http://www.pnas.org/content/early/2017/ ... 72115.full

Even if you don't tackle the detail, scroll down to the aerial photo of the pad-site...

And, yes, it does look like the set for a budget SciFi disaster movie; Any moment now, surely, a giant sand-worm will surface...

'P for Pleistocene' A camp-out goes impossibly wrong...

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