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Peakoil.com :: View topic - Five Miles Deep: Pumping Oil From the Bottom of the Gulf
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Five Miles Deep: Pumping Oil From the Bottom of the Gulf
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pstarr
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PostPosted: Thu Aug 30, 2007 6:50 pm    Post subject: Re: Five Miles Deep: Pumping Oil From the Bottom of the Gulf Add User to Ignore List Reply with quote

RdSnt wrote:
Sorry PStarr but even if your figures were correct they are pretty much meaningless.
You need to account for the weight of the oil in the whole length of the pipe. You need to account for fiction as well as constraints at each valve. Plus you need to factor in the energy required to manage the intense pressures at depth, as well as the temperature differentials from depth to surface.
okay great. fix them Smile
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Laughs_Last
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PostPosted: Fri Aug 31, 2007 6:36 am    Post subject: Re: Five Miles Deep: Pumping Oil From the Bottom of the Gulf Add User to Ignore List Reply with quote

pstarr wrote:
RdSnt wrote:
Sorry PStarr but even if your figures were correct they are pretty much meaningless.
You need to account for the weight of the oil in the whole length of the pipe. You need to account for fiction as well as constraints at each valve. Plus you need to factor in the energy required to manage the intense pressures at depth, as well as the temperature differentials from depth to surface.
okay great. fix them Smile

Can we just throw an efficiency factor at it to get an estimate?
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RdSnt
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PostPosted: Sat Sep 01, 2007 12:19 pm    Post subject: Re: Five Miles Deep: Pumping Oil From the Bottom of the Gulf Add User to Ignore List Reply with quote

I'll work at it from a different angle.
The Canjun Express has 6 Cat 3616 diesel engines, plus 6 Kato engines.

Each Cat burns about 370gal. of diesel per hour which is equivalent to roughly 4.1mwh/hour. So 6 engines consume about 25mw/hour of energy.
Lets assume, if and when they figure out how to pump oil from that depth successfully, that they get a rate of 50,000 barrels/day, 2083 barrels/hour. Roughly 3542 mwh equivalent of crude oil pumped per hour, to the well head.
So , 1mwh of refined diesel fuel for each 141 mwh of crude oil pumped to the well head per hour.
That's of course a paper calculation that doesn't account for inherent inefficiencies. I've emphasized that this is just to the well head, you still have a long ways to go to shore, then off course you need to refine it.
There isn't an account for the energy expended to get the diesel fuel to the platform.
And of course, Chevron will likely discover that the whole project is a dead loss and so will the energy expended in learning that.

pstarr wrote:
RdSnt wrote:
Sorry PStarr but even if your figures were correct they are pretty much meaningless.
You need to account for the weight of the oil in the whole length of the pipe. You need to account for fiction as well as constraints at each valve. Plus you need to factor in the energy required to manage the intense pressures at depth, as well as the temperature differentials from depth to surface.
okay great. fix them Smile

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cudabachi
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PostPosted: Sat Sep 01, 2007 1:58 pm    Post subject: Re: Five Miles Deep: Pumping Oil From the Bottom of the Gulf Add User to Ignore List Reply with quote

RdSnt wrote:
Sorry PStarr but even if your figures were correct they are pretty much meaningless.
You need to account for the weight of the oil in the whole length of the pipe. You need to account for fiction as well as constraints at each valve. Plus you need to factor in the energy required to manage the intense pressures at depth, as well as the temperature differentials from depth to surface.


Not to mention that not all oil being produced to the surface is "dead". Volatile oils have a lot of gas in solution and this "expanding gas", as pressure is reduced as the oil travels to the surface, acts as an excellent lifting agent.
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Lokutus
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PostPosted: Mon Sep 17, 2007 2:20 pm    Post subject: Wired mag debunks Peak Oil! Again. Add User to Ignore List Reply with quote

{thread merged. FWIW, a search for the title of the article brought this thread right up. -emersonbiggins}

http://www.wired.com/cars/energy/magazine/15-09/mf_jackrig?currentPage=all

I have tried to use search to find a mention of this article here on po.com but nothing comes up.

Anyone know of a discussion?
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flametree
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PostPosted: Mon Sep 17, 2007 6:32 pm    Post subject: Re: Five Miles Deep: Pumping Oil From the Bottom of the Gulf Add User to Ignore List Reply with quote

Plus the amount of energy to build, maintain and supply all if this.
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