method and device for measuring and / or to take measures in a section of a sharply inclined borehole, as well as their application to the manufacture of seismic profiles.

摘要

The invention relates to a method and a device for carrying out measurements or and interventions in a well portion strongly tilted with respect to the vertical or horizontal with the aid of a set of instruments place at the lower end of a rigid column. The present invention also relates to a method for producing the seismic profile. / p & & p & the method according to the invention is especially characterized in that it is positioned and it holds, positions the said assembly 2 in the extension of the column at the lower end of the said column, said assembly 2 being in a first position relative to said end; it is introduced into the well 1, said assembly 2 and the lower part of the said column; it is made to advance the said assembly in the well 1 by pushing on the said end of the column to which said assembly reaches a position substantially desired; clears released and the whole of its first position, then the bring in a second position in which that - latter rests on a wall of the well and / or it is mechanically decouple the column, the connection between said assembly and the column being completed by a flexible line, and the measurement is made or and. / p & & p & the device makes it possible to implement the method. The method of seismic characterized is in particular in that the measurements are carried out in a drain that is substantially horizontal, whereas a seismic source mounted on the surface is in action. / p & & p & the invention applies in particular to the measurements or and operations are carried out in a borehole to the ground.