What is it about?
Vertical pore pressure partitions in fluvial and deltaic marine environments, mainly built up of sand and shale, have a great impact on velocity drift. The conventionally used velocity – pore pressure transformation models are lacking this relationship in the so called normally pressured section. In this work, divide the subsurface to four pressure zones help avoiding the miscalculation of PP before drilling.
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Why is it important?
It is important for estimating the drilling cost (millions of dollars) of a well to explore for oil and Gas. Moreover, it reduces the risk of blowouts and hard kicks especially in deep-water where the drilling window is relatively narrow,
Perspectives
Predicted pressure in the subsurface to depth 30,000 ft is challenging mission. However, deeper than 20,000 ft uncertainty come in play due to the seismic energy loss with depth.
Dr Selim S. Shaker
Read the Original
This page is a summary of: Velocity for pore pressure prediction modeling, August 2015, Society of Exploration Geophysicists,
DOI: 10.1190/segam2015-5844272.1.
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