Pore Pressure Modelling- How To Overcome HPHT Challenges

Well planning and designing in HPHT environment have numerous challenges starting from play identification and prospect de-risking to drillability and finally development and production. Overpressure prediction is one of the principal challenges facing the oil industry today, as exploration focus worldwide is moving more and more into the HPHT environment. Pressure- related problems in HPHT wells include well control incidents, lost circulation, differential sticking, reduced rates of penetration, and reservoir damage. These often lead to expensive sidetracks, well abandonments and even underground blowouts. A better understanding of the prevalent pore pressure regimes in terms of generating mechanisms, pressure maintenance and dissipation through geologic time offers invaluable insight and perception about these challenges and also on our ability to mitigate or minimize them. It is important to analyse these challenges and develop an understanding of the same, prior to drilling so that, various plans and systems can be put in place.