Petrophysical techniques, not specific to exploration or production geology can be discussed here. Also discussion on logging tools and Rock Eval go here.
Mon Mar 28, 2011 7:38 am
The file is attached.
Below is a typical example of a Gamma Ray (
GR), Photo Electric Factor (
PE or
PEF), Neutron (
NPHI) and Density (
RHOB or
DEN) log, showing their response for different lithologies and fluids.
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Mon Mar 28, 2011 10:00 am
Agganitk,
Do you have a question about the log or is it just posted to share?
These examples do show the basics of log analysis, but I feel a resistivity log should also be included to provide assurance on hydrocarbon presence, rather than only density and neutron crossovers in very very very clean sands like happens here.
Mon Mar 28, 2011 11:49 am
I have posted it for just to share. Yaaa.. thanks for reminding... Clay minerals can also give separation in den and neu porosity curves.
Mon Mar 28, 2011 12:06 pm
ok, thanks for sharing! Have you taken any steps towards becoming a petrophysicist btw?
Mon Mar 28, 2011 12:14 pm
Nothing specific... only change is decision to read/refresh available material and keep on increasing knowledge with time ..
Sun Feb 17, 2013 9:32 am
Hi, at scale the percentage goes from 60 % to 0. What does it mean ?
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