Formula 6.6

Atlas wireline neutron lifetime log

Input(s)

$\tau$: Half-Decay time for Neutron (s)

Output(s)

$\Sigma$: Composite Capture Cross Section of the Formation (dimensionless)

Formula(s)

$$ \Sigma=\frac{3.15}{\tau} $$

Reference(s)

Bassiouni, Z., 1994, Theory, Measurement, and Interpretation of Well Logs. SPE Textbook Series Vol. 4. Chapter 9, Page: 181.