Page 160 - Standard Handbook Petroleum Natural Gas Engineering VOLUME2

Formation Evaluation 129

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1.0 1.2 1.5 2.0 2.5 3 4 5 6 7 8910
SP CORRECTION FACTOR
Figure 5-73. SP bed thickness correction chart for the SP [200,201].

Resistivity tools are further divided by depth of investigation. Tools may read
the flushed zone (RJ, the transition zone between the flushed and uninvaded
zones (R), or the uninvaded zone (RJ. For purposes of this discussion, all tool
names are for Schlumberger equipment. Comparable tools offered by other
logging companies are summarized in Table 5-25.