2.5. Pressures


2.5.1. Fracture Gradient

Task is intended for fracture and overburden pressure gradient estimation.

Input Values
TVD True vertical depth of interest
Air Gap Distance between water and RKB (Rotary Kelly Bushing)
Water Depth Depth of water for offshore wells and 0.0 for onshore
Pore Pressure The pressure of fluids within the pores of a reservoir
Matrix Stress Code Matrix stress code of drilled formation
Overburden Code Overburden code of drilled formation
Results
Fracture Gradient The gradient needed to initiate a fracture
Overburden Gradient The stress gradient derived from cumulative weight of formation and sea water above the depth of interest