Reservoir Navigation with an Integrated Formation Evaluation Drilling System


Hearn, Frank P., John C. Hickey, Baker Hughes

First Joint Conference of the Canadian
Society of Petroleum Geologists and the Canadian Well
Logging Society, Calgary, Alberta, Canada, May 28 – 31,
1995. Copyright 1995


A new drilling system has been developed to improve navigating reservoirs in horizontal wells. The system integrates Formation Evaluation Measurement While Drilling (FEMWD) sensors into a steerable mud motor, and has the capability to accurately navigate within narrow corridors and/or geologically complex reservoirs. The FEMWD sensors are positioned less than 15′ from the bit and include propagation resistivity and gamma ray instruments. Additionally, a near bit inclinometer is provided.