What is it about?
Equating the measurable pore pressure (mpp) to the predicted one (ppp) for modeling purposes can lead to operation failure during drilling. If the assumption that mpp and ppp are equal when the drill bit penetrates the shale - sand interface, drilling challenges would be reduced to none.
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Why is it important?
It is important to study the subsurface geological history before drilling a wildcat. This will shed light on the possible disparity between mpp and ppp and help modifying the mud and casing programs to reduce drilling hurdles.
Perspectives
I believe any pore pressure prediction for any wildcat should start with studying the geological - seismic semblances building blocks before assessing the drilling cost.
Dr Selim S. Shaker
Read the Original
This page is a summary of: Predicted vs. Measured Pore Pressure: Pitfalls and Perceptions, January 2002, Society of Petroleum Engineers (SPE),
DOI: 10.4043/14073-ms.
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