Geometrical instruments – Indicator of direction of force traversing natural media – Borehole direction or inclination
Patent
1976-06-04
1977-09-13
Haroian, Harry N.
Geometrical instruments
Indicator of direction of force traversing natural media
Borehole direction or inclination
E21B 47022
Patent
active
040473066
ABSTRACT:
A bore hole probe instrument having a point source of light, passing through a flexible tubular portion. The point of light, which originates at one end of the flexible tubular portion, is established for example by means of fibre optics, a laser or the like. At the other end of the flexible tubular portion there is located an automatic camera having an image screen, on which the point of light is received. As the flexible tubular portion bends, to follow the path of the bore hole, the light spot will be deflected on the image screen. The camera will photograph the position of the light spot on the image screen thereby providing an indication of the deviation of the bore hole.
REFERENCES:
patent: 1187519 (1916-06-01), Galvin
patent: 2792637 (1957-05-01), Seigel et al.
Otte Hubert Josef
Roosman Gosta
Haroian Harry N.
Rolston George A.
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