DRILLING OPTIMIZED WITH SURFACE MEASUREMENT OF DOWNHOLE VIBRATIONS

Keith Rappold Drilling Editor The use of vibration measurements to detect bit and drillstring dysfunctions in real time can improve drilling efficiency. Elf Aquitaine Production has developed a surface sub to detect vibrations in the drillstring in the well. This drilling dynamics sub, or dynameter, measures resonance phenomena (axial, torsional, and lateral vibrations) from the bit, bottom hole assembly, and drillstring.

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