Page 1 of 7 mcor.net MCORABILITIES TM CASE STUDY SERIES Rehabilitation and protection of internal tank weld seams The Problem During Ecopetrol’s integral maintenance service of its naphtha storage tank, the perimeters of welding rings #1 and #2 were determined as being the most critical areas, showing great loss of metal due to corrosion. Ecopetrol, formerly known as Empresa Colombiana de Petróleos S.A. (Colombian Petroleum Co.), is the largest and primary petroleum company in Colombia. As a result of its continuous growth, Ecopetrol forms part of the Fortune Global 500. The company is among the 25 largest petroleum companies in the world, and is one of the four principal petroleum companies in Latin America. Defects and

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