<Given the shortage of oil rigs . . . . The Oil Drum The back side of the curve>

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Heading Out on November 9, 2005 - 3:28pm Permalink | Subthread | Parent | Comments top
It depends where you look.  Ghawar is a very large field that is often divided into bits (as the paper cites), and the structures and productivity of the various regions differ.  Since the graph showed only a sector of a field 6 km high by 22 km wide and the high direction is likely the one in which Ghawar is over 100 miles long this is only one part, and it may still be a bit richer to the South - though I suspect also more depleted to the North.
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Typhoon on November 9, 2005 - 4:46pm Permalink | Subthread | Parent | Comments top
The illustration is from part of North Uthmaniyah.  The source, a paper by Dasgupta, can be found here: Link to article

North Uthmaniyah is probably the most depleted part of Ghawar.  Another technical paper refers to it as "the mature central part of Ghawar".  Ain Dar and Shedgum have been producing longer, but North Uthmaniyah was pushed the hardest when Aramco ramped up production during the 1979-1981 period.

It's interesting that a recovery rate of over 60% is projected according to Dasgupta.  Baqi and Saleri expressed confidence that it would be 75%, although I think Baqi and Saleri were talking about Ain Dar/Shedgum while Dasgupta is talking about the whole field.

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