Welcome to Petroleum Geology Forums

This is a free online community that aims to bring petroleum professionals and geologists together and share valuable knowledge. Registration is easy so become a member now for instant free access.
  • Petroleum Geologists can stay up to date with industry related topics and exchange ideas and concepts.
  • Upstream Oil and Gas Consultants get a chance to share their expertise and gain exposure to land future projects.
  • Geology students and graduates can join the discussion and get into contact with potential future employees.

  >> Register Now

EPT Propogation Time Attenuation Crossplot 

EPT Propogation Time Attenuation Crossplot
Description: This chart is used to determine the apparent resistivity of the mud filtrate (Rmfa) from measurements from the EPT Electromagnetic Propagation Tool. The porosity of the formation (φEPT) can also be estimated. Porosity and mud filtrate resistivity values are used in determining the water saturation. Enter the chart with the known attenuation and propagation time (tpl). The intersection of those values identifies Rmfa and φEPT from the two sets of curves. This chart is characterized for a sandstone formation at a temperature of 150°F [60°C].
Source: © Log Interpretation Chartbook (2009), Schlumberger
Previous Image Image Info Next Image
Scintillation Gamm Ray Specific Tools (1 of 4)
Uploaded:Sun Nov 09, 2014 5:41 pm

EPT Attenuation of NaCl Water Saturations

No comments yet

Content on EPGeology.com is intended for personal use only and to supplement, not replace, professional judgment. EPGeology.com disclaims any and all liability for your use of its content. As most of our content is supplied by our users we can not check copyright, and stress that copyright remains at the original owner. If you suspect copyright infringement please use the contact form to report it.
Contact || © EPGeology.com. || Powered by phpBB Asteroid Mining