Published January 2014

The definition of rational measures of centralizers straps in non-oriented complexes

I.Z. Hasanov

R.M. Zeynalov

It is known that for the regulation of borehole curving parameters in some directional wells centralizers installed in bottom hole assembly are applied. The selection, stabilization and decrease of zenith angle is conducted via changing of length, width, height of centralizers straps and in their installation place in bottom hole assembly. However, till now selection of centralizers straps length and width have not been sufficiently justified neither in theoretical researches, nor in practice, although these parameters have a significant influence on bottom hole assembly effective operation in well deviations, on gutter formations in borehole and well deviation rates. The article deals with more rationally developed technique of selection of centralizer straps rational sizes, installed in bottom hole assembly, including bottom hole engine considering soil pliability, in the place of centralizer contact with the well wall.