| 摘要 |
The essence of the proposed method resides in that assumed as the datum point of measurement of the well azimuth is an azimuthally stabilized housing of a down-the-hole instrument (1) (inclinometer), and the magnitude of the azimuth is determined by measuring the angle of rotation of the housing of the down-the-hole instrument (1) round its longitudinal axis, which rotation occurs in response to an azimuthal deviation of the longitudinal axis of a well (5). According to a first embodiment of the proposed device, it comprises a plurality of spring-loaded arcuate elements (3) secured on an external surface (2) of the housing of the down-the-hole instrument (1) so as to form at least three rows, each row consisting of at least three elements (3), each of the latter establishing, together with an internal surface (4) of the well (5), a contact spot (6) whose portion having a greater size (h) is arranged lengthwise the longitudinal axis of the well (5). According to a second embodiment of the proposed device, it comprises a rod (29) arranged coaxially with a housing (30) of a down-the-hole instrument (31) and hold in position thereto so as to ensure against their mutual rotation, and a plurality of the spring-loaded arcuate elements (3) secured on the external side surface of the rod (29) similarly to their securing to the housing of the down-the-hole instrument (1) in the first embodiment of the device.
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