Leak detection and repair project of 20-inch gas transmission line of Nodeh Peshang-Gonabad

Description
Leak detection and repair project of 20-inch gas transmission line of Nodeh Peshang-Gonabad

Project Type
Leak testing and leak detection and repairs

Project size
Approximately 15 km

Employer
Khorasan Razavi Gas Company

Year of implementation
2007
Project description
This work is approximately 14700 meters long.
Courier, drying, water supply and necessary equipment and hydrostatic leak test with an approximate length of 22000 meters
Leak detection with a special device for leak detection with an approximate length of 7000 meters and determining the location of the defect and filling the hole and supplying and repairing insulation on the pipe with an approximate length of 14700 meters
Supply water from aqueducts or local water pipes or any other way and inject it into a 20-inch pipe with an area of 14,000 meters
Drilling, draining, cutting a 20-inch pipe and removing it from the channel and welding and radiography of the tested pipe to replace it and filling the channel according to the technical specifications in five cases (fifteen welds)
20-inch pipe cutting and welding and radiography of the tested pipe replaced by five items (ten welds)
Preparation and supply of primer tape of the type of repaired thermal shrink tapes in the number of 400 items of the type of complete welded tape in the number of forty heads and films and radiographic materials in the number of thirty welded pieces
Final connection of line to gas line and gas injection and commissioning from the station, branch to Gonabad station