METHOD TO DETERMINE COORDINATES OF PLACE OF UNDERWATER PIPELINE BREAK Russian patent published in 2014 - IPC F17D5/02 F17D3/12 

FIELD: measuring equipment.

SUBSTANCE: invention belongs, mainly, to the oil and gas industry and, in particular, to area of pipeline transport of hydrocarbons. In the damaged pipeline they pump a foam substance solution based on fresh or sea water with formation of a steady rough-dispersed gas emulsion with the size of bubbles providing for constant speed of their emerging from depth of placement of the underwater pipeline on a surface of the water and not subject to coalescense. They determine coordinates of a place of a pipeline break by coordinates of the local zone, which appeared on the water surface - "marks" with obviously expressed characteristics of the water surface, distinct from surrounding surface of the water, taking into account benthonic and superficial currents in a zone of emergence of the "mark" by analytical dependences.

EFFECT: increased accuracy of detection of a place of an underwater pipeline break.

11 cl, 3 tbl, 7 dwg