Current Distributions associated with Cathodic Protection of Pipelines

1-8 These calculations, developed for the Trans-Alaska pipeline, were validated by laboratory experiments on full-scale sections of the Trans-Alaska pipeline. The development of boundary- element models was generalized to account for interactions between multiple pipelines, to account for stray current between independent CP networks, and to allow calculations for very long sections of pipelines. The resulting software was used during remediation of the Trans Alaska Pipeline and design of a new gas field in the South China Sea. These simulations will be employed to illustrate the influence of current and potential distributions on the ability of a CP system, to protect a buried structure from corrosion.