FIELD: drilling of wells.
SUBSTANCE: group of inventions relates to versions of an indicator subassembly configured to be part of a tubular member, placed in well bore for completion of well and supply of indicator material to well shaft. Sub-assembly comprises a housing, which has a longitudinal through hole and in which there is an intermediate perforated sub-assembly, an inner sleeve inside the housing, wherein the inner collar comprises the collar holes, wherein the inner collar has at least a first position and a second position, an annular space between the body and the inner collar, indicator material is arranged circumferentially around the intermediate perforated subband in the annular space, the first set of holes is located on the intermediate perforated sub-assembly, and second set of holes is located on intermediate perforated subassembly. First set of holes is located above the second set of holes along the borehole. Inner collar is made with possibility of sliding inside the housing and alignment of holes of the collar with the first set of holes and the second set of holes for receiving fluid medium from the formation.
EFFECT: technical result consists in improvement of information content on fluid extracted from each zone of formation, namely how many hydrocarbons and water is extracted in well in a specific zone.
30 cl, 9 dwg
