Tuesday, July 17, 2018

Archie: 2005 #66 (similar)

Given the following, what is oil saturation?

Rw = 0.02, Rt = 30 ohm-meter
a = 0.6, m & n = 2, Porosity = 8%.

Classic Archie. Guidebook 15 LOG 1:
Sw = [(a/Por^m)(Rw/Rt)]^0.5
Sw= [(0.6/0.08^2)(0.2/30)]^0.5 =  0.25
Oil Saturation: 1 - 0.25 = 0.75 = 75%
at
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4 comments:

  1. AnonymousJuly 18, 2018 at 10:05 AM

    Just found out this exam isn't 04 or 05. It's 09.

    https://vdocuments.site/petroleum-engineer-study-guide.html

    ReplyDelete
    Replies
    1. mdavidJuly 23, 2018 at 8:11 PM

      No, this is a similar problem to the 2005 practice exam (PM #26). I can't speak to the 2009 exam but it may have copied the 2005 problem. I just checked the 2005 exam and this problem matches.

      Delete
    2. UnknownJuly 25, 2018 at 3:07 PM

      Check the link against all the posted "similar" problems. They all match (relatively of course).

      Delete
    3. mdavidJuly 31, 2018 at 5:05 PM

      I've seen this exact exam with 2004, 2005, and now 2009 at the top.
      Heard it was the actual 2004 SPE Exam, published in 2005 by SPE for study purposes. YMMV.

      Delete

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