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ins.: 2014-06-20 02:00; ( Age: 10 yrs )
By: Scientists
Category: COSC1

COSC: 2014-06-20

Yesterday, the wireline core barrel got stuck in the drill ...
Drill pipes cut open with an angle grinder to retrieve a stuck core barrel.

Yesterday, the wireline core barrel got stuck in the drill pipe during retrieval - so hard that it had to be cut out of the drill pipe with an angle grinder. In the course of the round trip the drill bit was replaced and core drilling proceeded this morning. Fresh snow on the mountains, snow and rain showers at the drill site, some sun - midsummer: somewhere in the middle between winter and summer! But beautiful. Then, in the afternoon, the core barrel lost the drill core twice! The first time the drill core apparently was left unbroken and attached to the bottom of the drill hole and, luckily, could be retrieved with another core barrel. The second time, with another core barrel/catcher setup, it did not go so well. A short piece of drill core that made it to the surface showed that the drill bit didn't keep the correct diameter and, thus, the drilling team is presently working on the third round trip in four days. Let's hope for better luck tomorrow!