Measurement of curvature of a subsurface borehole, and use...

Details Measurement of curvature of a subsurface borehole, and use... Measurement of curvature of a subsurface borehole, and use...

E - Fixed Constructions

21

B

E21B 47/00 (2006.01) E21B 47/022 (2006.01)

Patent

CA 2456209

The present invention provides methods of measuring downhole the curvature of a borehole and, in a particular application of the invention, using the curvature information as an input component of a bias signal for controlling operation of a downhole bias unit in a directional drilling assembly.

L'invention porte sur un procédé de mesure en fond de puits de la courbure d'un forage, et dans le cas d'une application particulière, sur l'utilisation de l'information sur la courbure comme donnée du signal de déviation commandant l'unité de déviation en fond de puits d'un dispositif de forage directionnel.

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