JOHANNESBURG--January 7, 2013--Written by Richard Finlayson, Senior International Editor for Industrial Info Resources (Sugar Land, Texas)--The Gulf region is set to add more than 21,000 kilometers of pipelines to its current pipe network over the next five years. The Gulf Cooperation Council (GCC) tubes and pipes industry will invest $18 billion in pipeline projects over the period, which will constitute 14% of the globally extended pipeline network of 161,000 kilometers.