The transportation of oil and natural gas, pipelines serve as an important mode. Even solids arc also being transported through underground pipes after their conversion into slurry. This system has certain edges over other transport systems.
1. Pipelines are laid through water as well difficult and different type of terrains.
2. The operational and maintenance cost of pipelines is very less. Transportation through underground pipes has some demerits also like detection of leakage, repairing, safety and security of the pipelines.
Pipeline length in India is about 6535km. The following are the major pipelines constructed in India for the transportation of petroleum and liquid gas.
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(i) Kandla Port – Koyali – Mathura refineries.
(ii) Hazira (Gujarat) Jagdishpur (UP) liquid gas to fertilizer plants located at Sawai Madhopur (Rajasthan), Auraiya, Aonla and Shahjahanpur (UP).
(iii) Guwahati, Baranasi, Haldia and Kanpur are connected with oil fields of Assam.
(iv) Kudremukh – Mangalore – Iron ore slurry.
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(v)Maton mines – Dcbari smelter plant in Udaipur district of Rajasthan phosphate concentrate.
Transportation of coal slurry from the coal mines to thermal power stations through pipelines is under active consideration.