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17:00 Mar 8, 2004
English to French translations [PRO] Tech/Engineering - Engineering (general) / Oil and petrol
English term or phrase:Bottomhole Assembly (BHA)
Could you please help me with this term?
The lower portion of the drillstring, consisting of (from the bottom up in a vertical well) the bit, bit sub, a mud motor (in certain cases), stabilizers, drill collars, heavy-weight drillpipe, jarring devices ("jars") and crossovers for various threadforms.