Abstract
During drilling operations of oil and gas wells, drill string vibrations are inevitable and considered one main reason of drilling malfunctioning and Bottom Hole Assembly (BHA) failures. Such vibrations can be produced by several factors such as downhole weight on bit, bit torque, bit revolutions, rate of penetration and bit axial acceleration. Another reason of drill string vibration is due transition in properties of formations that are being drilled such as in interbedded formations or stringer drilling scenarios. Currently, these vibrations are measured downhole via three-axis accelerometers which sense three basic modes; axial (longitudinal) mode, which is the vibration along the axis of the tool; torsional or tangential (rotational) mode, which is related to irregularity of the downhole tool rotation; and the transverse (lateral) mode, which is caused by lateral movement of the tool, Figure 1. The location of such accelerometers can be in the bit or at different positions within the BHA or string. In addition, vibration data can be recorded in real-time or stored in a memory for post-run analysis.
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This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Baker Hughes Company, "METHODS FOR WELL PLACEMENT AND FORMATION PROPERTIES EVALUATION USING DRILLING VIBRATION DATA", Technical Disclosure Commons, (June 23, 2025)
https://www.tdcommons.org/dpubs_series/8257