Difference between revisions of "Well Log Interpretation"

From wiki.pengtools.com
Jump to: navigation, search
(See Also)
Line 64: Line 64:
 
*[[Perforations]]
 
*[[Perforations]]
 
*[[Well Log Interpretation]]
 
*[[Well Log Interpretation]]
 +
*[[HCPV]]
  
 
[[Category:E&P Portal]]
 
[[Category:E&P Portal]]

Revision as of 10:10, 2 April 2022

Brief

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

Well Log Interpretation

Summary Equations

 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*S_o)}{\Sigma h} 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 %

Example

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*0 + 5.2*97.1 + 5.8*94.8 + 1*0 + 1.5*0}{(0 + 5.2 + 5.8 + 0 + 0} = 1054.76 / 11 = 95.9%

Parameters

  • Reservoir
  • Zone
  • Top MD
  • Bottom MD
  • h_gross - gross thickness
  • h - net thickness
  • Saturation
  • RT - resistivity
  • Porosity
  • Sw
  • So
  • Sg
  • k_absolute
  • k_oil_effective
  • kh_oil
  • k_gas_effective
  • kh_gas
  • Version
  • Date Interpreted

Upload

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

See Also