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Definitions of All Liquids, Condensate, NGL, etc. needed

General discussions of the systemic, societal and civilisational effects of depletion.

Definitions of All Liquids, Condensate, NGL, etc. needed

Unread postby chuck6877 » Tue 27 Feb 2007, 02:45:55

Ok, I've searched and I can't find good definitions for these:

What is "All Liquids"?
What are "Natural Gas Liquids", and how does this differ from natural gas?
What is "Condensate"?
What is "NGPL"?

What group(s) would the oil sands or oil shale be included in?

Thank you in advance!
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Re: Definitions of All Liquids, Condensate, NGL, etc. needed

Unread postby chuck6877 » Tue 27 Feb 2007, 09:58:35

Anyone?
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Re: Definitions of All Liquids, Condensate, NGL, etc. needed

Unread postby TexasEx2006 » Tue 27 Feb 2007, 17:20:06

Condensate refers to the liquids that are produced from a gas well due to decreases in pressure and temperature from the source rock to the surface. I.e. as pressure and temperature drop as the gas goes to the surface, these liquids fall out.

Condensate will continue to fall out through the production infrastructure, i.e. dP across piping, vessels, control valves, etc. You have to be in a certain phase envelope for this to occur; however, it occurs nonetheless.

Natural Gas Liquids include the light ends produced with the gas. Natural Gas Liquids include propane, butane, pentane, hexane and heptane, but not methane and ethane, since they need refrigeration to be liquefied. All of these light hydrocarbons are produced naturally, but separated in gas plants, or cryoplants in the case of methane and ethane.
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Re: Definitions of All Liquids, Condensate, NGL, etc. needed

Unread postby chuck6877 » Tue 27 Feb 2007, 21:40:33

Texas,
Thanks so much. You cleared a lot up. One more thing if you or anyone else knows......

Considering this from www.theoildrum.com :
From http://www.theoildrum.com/node/2300 :

$this->bbcode_second_pass_quote('', 'A')n update on the latest production numbers from the Energy Information Agency:

Monthly production records are unchanged:

All Liquids: the peak is still July 2006 at 85.47 mbpd, the year to date average production in 2006 (11 months) is 84.59 mbpd, up 0.01 mbpd from 2005.

Crude Oil + NGL: the peak date remains May 2005 at 82.08 mbpd, the year to date average production for 2006 (11 months) is 81.40 mbpd, down 0.03 mbpd from 2005 (11 months).

Crude Oil + Condensate: the peak date remains May 2005 at 74.15 mbpd, the year to date average production for 2006 (11 months) is 73.48 mbpd, down 0.09 mbpd from 2005 (11 months).

NGPL: the peak date remains February 2005 at 8.05 mbpd, the year to date average production for 2006 (11 months) is 7.92 mbpd, up 0.06 mbpd from 2005 (11 months).


Which of the above categories for considering peak oil would the oil derived from the TAR SANDS and OIL SHALE BE CONSIDERED?

Thank you,
Chuck
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Re: Definitions of All Liquids, Condensate, NGL, etc. needed

Unread postby TexasEx2006 » Tue 27 Feb 2007, 23:35:54

All Liquids.

The problem w the oil sands is that you're limited by production rates. If reserves were everything we'd have no worries!
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Re: Definitions of All Liquids, Condensate, NGL, etc. needed

Unread postby Kod » Wed 28 Feb 2007, 22:12:28

Is ethanol included in "all liquids"?
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Re: Definitions of All Liquids, Condensate, NGL, etc. needed

Unread postby drew » Wed 28 Feb 2007, 22:16:30

Ethanol is for getting drunk.

It doesn't come from a well.

(just in case you were serious)

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Re: Definitions of All Liquids, Condensate, NGL, etc. needed

Unread postby chuck6877 » Wed 28 Feb 2007, 23:15:58

Kod,

I don't think you were joking, but Drew's joke was funny :)

Yes, from what I've read, ethanol is included in the "All Liquids"

So the things included in "all liquids", if I've got this straight now, that are NOT included in the other measurements are:
ETHANOL
OIL SHALE
OIL SANDS

Does anyone know if there are other things included that aren't in the "Crude+Condensate" or "Crude+NGL" measurements?

Thanks,
Chuck
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Re: Definitions of All Liquids, Condensate, NGL, etc. needed

Unread postby Tanada » Thu 01 Mar 2007, 08:00:05

How do the synthetic CTL and CTG pilot plants in the far north get counted? They make a fair ammount of synthetic motor oil, plus a minor ammount of synthetic diesel and synthetic methane gas (I just can't type Synthetic Natural Gas with a straight face)?
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