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The Baker Hughes SOr™ (saturation oil remaining) sponge liner coring system improves core sample quality to enable more accurate prediction of oil saturation levels and depth in formation rock. Shale oil field operators and operators of conventional and other unconventional oil fields can make more informed field development decisions based on larger volumes of unaltered cores delivered by the SOr system. Additional benefits include lower total data acquisition costs and reduced nonproductive time (NPT).
How the SOr system overcomes traditional sponge coring issues to improve core sampling quality
During core extraction with traditional sponge coring methods, the sponge can be damaged easily. Drilling fluid can invade the sponge, and oil can seep out and down the length of the core, or become lost back into the wellbore or the formation. This can distort the true representation of the relative depth and quantity of oil in the formation. The SOr sponge liner coring system reduces the risk of sponge damage and captures all of the expelled oil as the core is brought to the surface.
Other key components of the system include: