Fracture Gradient Above Overburden
/Does anyone know of any published material on Barents Sea fracture gradients which explain why sometimes the fracture gradient is equal to or greater than the overburden gradient?
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Density extrapolation
/I have assumed sediments density at the earth surface in a case in order to calculate overburden stress and gradient and now i have to extrapolate it to the first measurement point on the density log. How this extrapolation will be carried out?