A pipeline is a system of pipes designed to carry fluids such as oil, natural gas, or other petroleum-based
products over long distances, often underground. It is a very important part of the modern civilization that
has now been used for millennia for the movement of water

There are different types of pipelines classified on the basis of manufacturing material
, transported substance, and function of the pipes.

Selection of materials for pipes is based on the design of the pipeline, internal and external forces,
jointing and laying techniques, durability, impermeability and the frequency of maintenance