Journal of Petroleum & Environmental Biotechnology

Wellbore spiraling induced through systematic micro-sliding

2^nd International Conference and Expo on Oil and Gas

October 27-28, 2016 Rome, Italy

Christopher Viens, Bosko Gajic and Steve Krase

Schlumberger, USA

Posters & Accepted Abstracts: J Pet Environ Biotechnol

Abstract:

Stick Slip is a term that is often overused and commonly diagnosed from surface drilling parameters of torque and differential pressure, but the actual magnitude of the condition is rarely captured at the BHA level as the necessary measurements are seldom deployed. Deployment of an accurate stick slip measurement down-hole has led to an interesting discovery that goes against long held traditional drilling lore. A divide has been identified between stick slip as independent bit and BHA conditions. This phenomenon in horizontal laterals is common but few M/LWD systems have been able to capture it. Utilizing measurements of down-hole RPM bore pressure, high speed magnetometer data, bending moment, and continuous inclination, the well-bore spiraling phenomenon is able to be captured, quantified, and intimately tied back to systematic effects of BHA stalling and mirco-sliding. An operator in the Permian Basin has identified that this phenomenon is contributing to increased tortuosity and drag. Utilizing down-hole torque measurements the root causes of the stick slip and spiraling phenomenon were identified and able to engineered out of the system.

Biography :

Email: Christopher.Viens@nabors.com