PIPELINE DECONTAMINATION PROCESS EMPLOYED IN THE OIL EXPLORATION AND PRODUCTION AND DECONTAMINATION SYSTEM USED TO PROCEED WITH THE DECONTAMINATION OF PIPELINES

摘要

Pipeline decontamination process employed in the oil exploration and production and decontamination facility used to proceed with the decontamination of pipelines used in oil exploration and production, wherein a pipeline (T) to be decontaminated is submitted to a hydro-blasting phase for the purposes of removal of the material added to the internal wall of such pipeline. Such hydro-blasting process occurs in a closed circuit and where the water used for such process is submitted to filters for the retention of solid residues. Such hydro-blasting process is conducted in the presence of vacuum, which is used to promote the suction of residues removed, in conjunction with the volume of water used. The hydro-blasting process is taken into effect by employing a hydro-blasting spear (3) that is dislocated internally throughout the pipe (T) to be decontaminated.