New model improves deepwater fracture gradient values off Norway

A new fracture gradient model correlates well with all deepwater drilling off Norway.The model is based on water depth and overburden stress. Because bulk densities vary significantly at different deepwater locations, the model includes a new water-depth normalization method to correct for varying overburden density.The Gulf of Mexico and offshore Brazil have had deepwater drilling for some time, but it is fairly new off Europe, with the first deepwater well drilled off Norway in 1997. On the UK side, deepwater drilling has mainly taken place along the Atlantic margin, close to the Shetland and the Orkney islands. More activity is expected, however, towards the Faroe Islands and Norway.Ge...

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