Petrophysical Analysis with Petrel

Assess shale volume in reservoirs using porosity, permeability, water saturation, and shale types, applying linear gamma ray index and Larionov Tertiary formulas in Petrel for Niger Delta rocks.

Learn to estimate porosity, the pore volume fraction of rock, from density, neutron, and sonic logs, using matrix and fluid densities, slowness values, and total and effective porosity formulas.

Explore how gamma ray log detects radioactive elements in rocks, distinguishing reservoir from non-reservoir rocks; low gamma ray readings indicate sandstone as reservoir, high readings indicate shale as non-reservoir.

Learn how gamma ray logs distinguish reservoir from non-reservoir rocks by using high readings in shale with radioactive elements and low readings in sandstone, measured in API units.

Examine neutron log, shown as ft3/ft3, that measures hydrogen index and fluid-filled porosity to differentiate water, oil, and gas, with low hydrogen index yielding higher porosity for gas field rocks.

Navigate the Petrel interface, from the menu bar and toolbar to project creation, windows, and input tabs, and use the tool palette for well correlation and cross-section editing.

Learn practical well correlation using gamma ray, resistivity, sonic and density logs, refine horizons with synchronized scrolling and world tops in Petrel.

Compile and organize petrophysical formulae in Petrel, learn to split complex equations into sections, and apply water saturation, porosity, and neutron porosity calculations using power functions.

Estimate water saturation from Archie's and Simandou equations, deriving rw from logs, cementation factor and formation factor considerations, then compare resistivity results for quality-checked reservoir assessment.

Export petrophysical data from Petrel to external software by selecting wells, logs, and created properties, and include division data to enable external viewing and further modeling.

Load data inputs and logs, perform petrophysical analysis to identify fluids and create the fluid diagram, then compute total porosity, effective porosity, saturation, and export results for Petrel workflow.