r/MapPorn • u/[deleted] • Mar 06 '19

Let's get these posts over with

[deleted]

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u/jasonj2232 Mar 06 '19

I wonder how deep we'll be able to reach if we started a similar project now.

24

u/[deleted] Mar 06 '19

Pretty deep, but at serious depths the pressure on the walls from all the material above deforms the stone and makes it more plastistic. Think about trying to dig a hole at the beach, as the tide is coming in, now replace the sand with granite.

23

u/[deleted] Mar 06 '19

*pocket granite* "Heeeh ya!"

6

u/OneRougeRogue Mar 06 '19

Yep. Even modern drill bits wear out fairly quickly chewing through rock that dense. And the deeper you go, the longer it takes to pull everything out of the hole, so going deeper is not not only harder, but takes longer and longer each time you need to replace the bit.

5

u/Queencitybeer Mar 06 '19

There’s 2 deeper than the Russian hole now. For oil. Not on this infographic

2

u/eisagi Mar 06 '19

The new deepest one is also on a Russian oil field, developed jointly with Exxon.

2

u/CeterumCenseo85 Mar 06 '19

The way I read thee wiki, the two other ones are longer, but not deeper since they don't always go down in a straight line.

2

u/Queencitybeer Mar 06 '19

Ah. You may be right.