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Water Pressure Measurement Inside a Hydrocarbon Column

by Trond Rolfsvåg, Hydrophillic

was presented on Wednesday the 9th of January, 2019.


This presentation will explain how it is possible to measure water pressure inside an oil reservoir with a hydrophilic probe, and how to use this pressure to estimate the distance to the oil/water contact.

The pressure difference between oil and water can also provide information about invasion of water into a reservoir segment long before anything can be seen on a saturation log.

The presentation will also give some details on how the hydrophilic probe works, share fresh results from the lab and show the conceptual design of a wire-line tool capable of performing the measurement in an open hole discovery well.


Trond Rolfsvåg, has a Master’s degree in Petroleum Technology from University of Stavanger. He has worked with IOR related research (NORCE), but most of the 30 year career as a reservoir engineer in Equinor (5 years) and ConocoPhillips (20 years). Mentoring less experienced RE’s, and monitoring R&D project has always been an important part of the various assignments. He has developed a technology for finding the oil/water contact without drilling through it in 2015. Left ConocoPhillips in 2016 and established Hydrophilic AS in 2016.