E&P Defining Series

The Defining Series provides summaries of a wide range of industry topics. Two-page articles efficiently communicate basic principles and underlying science.

Created in conjunction with industry experts, the articles are aimed at experienced professionals looking to broaden their knowledge, as well as newcomers.


Disciplines and challenges related to the subsurface.


Major technologies and techniques used to drill wells.

Formation and reservoir evaluation

Characterization of the subsurface through logging and other technologies.


Major technologies and techniques used to complete wells.

Production and intervention

Technologies and techniques to monitor, maintain, and remediate production.

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Oilfield Glossary App

Oilfield Glossary app
Quickly search the Oilfield Glossary for definitions of more than 5,000 industry terms. Download from the iTunes Store

Award-Winning Training for Oil & Gas Professionals

NExT training
NExT, a Schlumberger company, instructs technical professionals in 11 core disciplines as well as proprietary software applications for the E&P industry. Visit NExT Training page