Mud logging is the real-time “eyes and ears” of the wellbore during drilling—critical for kick detection, formation evaluation at bit time, operational optimization, and regulatory reporting. It ...

At-a-Glance: Robust mud logging hinges on accurate lag modeling, disciplined sample handling, calibrated gas systems, and real-time correlation with drilling ...

Unocal Thailand Ltd. has established a lime-free, oil-based drilling fluid system as the best option for drilling wells with high bottomhole temperatures and where invasions of CO 2 and other acidic ...

Advances in sampling and analytical techniques now permit the isotopic analysis of very small amounts of hydrocarbon gases in air that are collected during drilling. Click on the pdf link below to ...