FIELD: transportation.
SUBSTANCE: invention relates to pipeline transport and can be used in oil, gas, petrochemical and other industries using pipeline transport. Multi-section cleanup and diagnostic facilities (CDF) into the pipeline is introduced by alternate placement of each CDF section into a scraper crane. First and subsequent sections are introduced into the pipeline with a gap relative to its walls. Final section is introduced with provision of tight contact of the section with the wall of the pipeline by means of sealing discs installed on it. CDF is transported under action of transported medium by means of final section. Coupler CDF is made integral in pipeline due to difference of speeds of first, next sections and final section.
EFFECT: simplified start-up of SOD CDF possibility to use multisection CDF of unlimited number of sections, increased mobility of start-up chambers, reduced weight and dimensions of used chambers.
1 cl, 3 dwg
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