| 摘要 |
The invention relates to a method for directional or horizontal drilling, characterised by the use of a hydraulic device recovering the energy of the drilling fluid to produce evolution cycles which gradually modify the geometry of a stabiliser placed at the bottom of a well. This method of drilling uses, individually or in combination, stabilisers capable of varying the diameter 45, the bend 46, the eccentricity 48, and the offset 50. <IMAGE>
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