The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 21, 1992
Filed:
Feb. 28, 1991
Jean Boulet, Paris, FR;
Pierre Morin, Levallois Perret, FR;
Institut Francais du Petrole, Rueil Malmaison, FR;
Abstract
The device comprises a set of rods having a first end, by means of which the rotation is transmitted to the set of rods and the axial force to the tool (3) during drilling, and a second end to which the tool (3) is fastened. The device comprises means for adjusting the azimuth angle of the path of the drilling tool which consists of a tubular body (10) comprising a radially projecting bearing blade (11) and mounted rotatably on the set of rods (2), and a remotely actuable junction means making it possible to fix the set of rods (2) and the tubular body (10) relative to one another in terms of rotation in its active position. In the inactive position of the junction means, the set of rods (2) is freely rotatable within the tubular body which is held immobile in terms of rotation in the drill hole by means of the bearing blade (11). The bearing blade (11) is placed in the drill hole in an angular orientation making it possible to adjust the azimuth angle in the desired direction.