Difference between revisions of "Well Log Interpretation"

Latest revision as of 13:09, 2 April 2022

Well Log Interpretation is a summary of a well log. Used in Mature Water Flood Analysis for calculating HCPV for Blocks and Patterns.

h_{gross} = \Sigma h_{gross}

h = \Sigma h

where Saturation=Oil

\phi = \frac{\Sigma (h*\phi)}{\Sigma h}

where Saturation=Oil

S_o = \frac{\Sigma (h*\phi*S_o)}{\Sigma (h*\phi)}

where Saturation=Oil

where

h_{gross}

= Gross thickness, m2

h

= Net pay, oil saturated thickness, m

\phi

= Porosity, fraction or %

S_o

= Oil saturation, fraction or %

Calculate the summary of the well log interpretation above for the Б2(С1) reservoir.

h_{gross} = 1+1.5+1+0.9+0.6+1.2+1.7+5.2+5.8+0.7+0.7+1.3+0.8+1+0.6+1+1.5+0.9+0.7+1.1+2.2+1.1+2.6 = 35.1 m

h = 1.2 + 5.2 + 5.8 + 1 + 1.5 = 14.7 m

\phi = \frac{1.2*13.4 + 5.2*19 + 5.8*12 + 1*17.2 + 1.5*16.6}{1.2 + 5.2 + 5.8 + 1 + 1.5} = 226.58 / 14.7 = 15.4%

S_o = \frac{1.2*13.4*0 + 5.2*19*97.1 + 5.8*12*94.8 + 1*17.2*0 + 1.5*16.6*0}{0 + 5.2*19 + 5.8*12 + 0 + 0} = 19161.6 / 168.4 = 96.1%

Well Log Interpretations are uploaded to the E&P Portal here.

@@ Line 16: / Line 16: @@
 :<math> \phi = \frac{\Sigma (h*\phi)}{\Sigma h} </math> where Saturation=Oil
-:<math> S_o = \frac{\Sigma (h*\phi*S_o)}{\Sigma h*\phi} </math> where Saturation=Oil
+:<math> S_o = \frac{\Sigma (h*\phi*S_o)}{\Sigma (h*\phi)} </math> where Saturation=Oil
 where