International Pipeline Projects | JDH Corrosion Consultants, Inc.JDH Corrosion Consultants, Inc.

Da Hong Shan Iron Ore Concentrate Pipeline
China
Conducted an in-situ soil resistivity survey in China and prepared a cathodic protection system design criteria for 204 km of slurry pipeline. Project consisted of measuring in-situ soil resistivities at a spacing of 1-2 km using the Wenner 4-pin technique and using Barnes Layer Calculations to determine the corrosivity of the soils at pipe depth. Design criteria for cathodic protection was developed and engineering cost estimates were provided as part of a feasibility study.

Antamina Compania Minera Zinc/Copper Slurry Pipeline
Peru
Designed a cathodic protection system for an 8” diameter, 302 km long slurry pipeline. This pipeline travels from the Andes Mountains to the ocean and ranges in elevation from 5,000 meters to sealevel. Cathodic protection for this pipeline utilized both AC powered rectifiers and DC powerd solar systems in remote locations. Telluric line currents were encountered on this pipeline resulting in extensive testing and monitoring of pipeline potentials in order to adjust the cathodic protection system adequately.

Tintaya Tailings Project BHP Tintaya
Peru
Designed cathodic protection for 10.7 km long 16” diameter tailings pipeline. Cathodic protection system consisted of an impressed current system utilizing a shallow distributed anode bed. Our firm was responsible for developing the design criteria and preparing the design drawings and technical specifications along with engineering cost estimates for materials and construction. We provided technical support during installation also.