Post-drill analysis of Pore Pressure and Fracture Gradient from Well Logs and Drilling Events – An Integrated Case Study of a High Pressure Exploratory Well from Panna east, Mumbai Offshore Basin, India. Pore Pressure and Geomechanics from Exploration to Abandonment 11th January 2022 – Posted in: Drilling

AAPG Geosciences Technology Workshop, Perth, Australia, June 6-7, 2018

Over-pressure, one of the important drilling hazards seen globally, is mainly associated with narrow operating windows resulting in severe well control incidents and lot of nonproductive times (NPT). Accurate knowledge of pore pressure is fundamental to any safe and economic well construction. Mumbai Offshore Basin, a pericratonic rift basin in the western continental shelf of India, covers about 148,000km2 from coast to 200m isobath, sedimentary fill ranges from 1100-5000m. It accounts for nearly two-thirds of the annual hydrocarbon production of India. The studied vertical exploratory well has been drilled in the Panna East area of Heera-Panna-Bassein tectonic block to explore the Panna formation (Paleocene-early Eocene).

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