Revealing Reservoir Secrets Through Asphaltene Science

Publication: Oilfield Review
Volume: 24
Issue: 4
Publication Date: 01/15/2013

By combining downhole fluid analysis with advances in  asphaltene science, oil companies are gaining a better understanding of reservoir architecture. Downhole analysis of asphaltenes—the heaviest components of petroleum—can help geoscientists determine asphaltene concentration gradients, which in turn, can help operators ascertain the presence of sealing barriers and assess the communication and equilibrium of fluids in complex reservoirs. Examples from the Gulf of Mexico and the Middle East show how companies are using asphaltene gradient techniques to learn more about reservoir connectivity and fluid distribution.