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Caliper. Gamma Ray. Shale. Siltstone. Sandstone. Gas. Siltstone. Sandstone. Shale. Sandstone. Step 2: Porosity Log Crossovers. ILD (deep). MSFL. NPHI. Where is the neutron porosity to the right of the density porosity? This indicates where gas is in the sand pores. SFL. RHOB).
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Caliper Gamma Ray Shale Siltstone Sandstone Gas Siltstone Sandstone Shale Sandstone Step 2: Porosity Log Crossovers ILD (deep) MSFL NPHI • Where is the neutron porosity to the right of the density porosity? • This indicates where gas is in the sand pores SFL RHOB) Courtesy of ExxonMobil