The Annotated Pickett Plot
Log-log resistivity-porosity crossplot
- based on transformed Archie equation
- log Rt = log(a Rw) - n log Sw- m log F
- reveals porosity-water saturation patterns
Color-coding of third attribute
- depth, gamma ray, photoelectric factor, . . .
Contours of reservoir parameters
- water saturation, bulk volume water, permeability, capillary pressure