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1. Kit - Member

   Hiya, I'm trying to convert formation water resistivity from well logs to salinity. Currently I'm using a calculator which is based on the Schlumberger Gen-6 chart (http://www.rjzpetrophysics.com/html/links___software.html), but would like to know the underlying theory/calcs. Quick googling gives calcs that are only good to 42,000 ppm; I need up to and above 300,000 ppm.

   Any recommendations on books, papers, etc. would be very helpful.

   Many thanks!
   Kit

   Posted 5 months ago #
2. sweaman2 - Member

   Can't help directly - not a petrophysicist but that sounds very saline. If you have an Rw can you not get some actual measurements from the core sample?

   Posted 5 months ago #
3. The Flying Ox - Member

   This gives up to 300,000 ppm, and you might find a useful calculator here.

   Posted 5 months ago #
4. Kit - Member

   Unfortunately I don't have access to core samples, and in any case I need to make salinity estimates for c. 200 fields (PhD project, in case you're wondering!)

   edit: thanks FlyingOx. First link is to the Schlumberger chart I already have, but second link looks useful, cheers.

   Posted 5 months ago #

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