Advanced Rock Properties
Rw - Salinity Determination
Core Lab Solves Rw Issues
Fluid loss, presence of clays, or a lack of producted water affect Rw determination.
The Core Lab Solution
3 Key Components
- Drill Fluid Invasion (BW) → Tracer Test
- Clay Bound Water (CBW) → NMR
- Total Water (TW) → Dean Stark water
Use to solve for: Formation Water (FW)
FW = TW - DW - CBW
Drill fluid invasion may dilute or add salinity. Tracer correction accounts for this.
Clay bound water dilutes salinity. NMR quantifies this fresh water dilution.
Rw Impact on Reservoirs
Solve for SW
Core Lab Rw solutions IMPACT reserves and formation evaluation.