35,000 Foot Oil Well!

jay_merrill

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Dec 5, 2007
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I just read in my local paper that Freeport MacMoRan is drilling a well in the Gulf of Mexico that may go as deep as 35,000 feet! It is currently permitted to 33,000 feet and they are now seeking permission to go the extra 2,000 feet.

For all that gets talked about in terms of what isn't being done to explore for oil in the U.S., this is really amazing. "Ultra Deep" wells are not new (the current record, held by Chevron, is 34,189 feet), but the effort to keep going says something about the determination of U.S. E&P companies, to keep widening the envelope of what can and can not be done.

As I think about this, I am trying to imagine just what it takes to control a well drilled to those depths! From the task of directing a drill string that is six miles long, to controlling the pressures involved, it sort of seems like sending a man to the moon! If there are any petroleum engineers among our "ranks," I would love to hear your comments on the matter.

Fascinating stuff!
 

SgtMaj

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SnappingTurtle

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Re: 35,000 Foot Oil Well!

The difference between that and sending a man to the moon is... it was cheaper to send a man to the moon! :eek:

:D

But I can't run my boat with a man on the moon. I need oil, cheap, plentiful oil! :D
 

bhammer

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Re: 35,000 Foot Oil Well!

Just think about all the steel needed to go that deep. The other fascinating part is they typically don't drill straight down. They put a kicker bit on and that causes the drill to drill sideways. Could you imagine the amount of time it would take for the roughnecks to pull the bit out??? :eek:
 

jay_merrill

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Re: 35,000 Foot Oil Well!

What amazes me the most about this is the pressures that must be involved. As you drill deeper, the internal pressures of the well increase and try to blow the well out. By about 10,000 feet or so, you are typically already using barium mud in the hole to control those pressures. I have no idea what is used for ultra deep wells but, whatever it is, it must be some heavy stuff!
 
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