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Oilwell Drilling Engineering

By
Don W. Dareing
Don W. Dareing
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ISBN:
9780791861875
No. of Pages:
512
Publisher:
ASME Press
Publication date:
2019

The previous chapter underscores the importance of performance and duration of on-bottom drilling time (td) between bit runs. Tool reliability becomes especially important in offshore drilling operations where rig rates are relative high compared with on-land drilling. Premature failure of anyone of these tools effects footage cost by a lower on-bottom drilling duration (td).

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