The rigs, each weighing 2,500 tons, will be moved to their final destinations in the Persian Gulf after which installation work will commence, the Oil Ministry news agency Shana reported.
Iranian engineers built both platforms each of which has a capacity to produce 14.2 million cubic meters of gas, according to Financial Tribune.
Moreover, the last offshore platforms of SP phases 22-24, deck 24B, are ready to supply gas to the onshore refinery.
When fully operational, phases 22-24 will produce 56 mcm of natural gas, 50 mcm of methane, 2,900 tons of liquefied petroleum gas, 2,750 tons of ethane, 75,000 barrels of gas condensates, and 400 tons of sulfur on a daily basis.
By March 70 mcm of gas per day will be added to South Pars daily production.
Iran will produce over 750 million cubic meters of natural gas from South Pars by March 2021.
South Pars is the world's largest gas field, shared between Iran and Qatar, covering an area of 3,700 square kilometers of Iran territorial waters in the Persian Gulf. Iran is developing the mega gas project in 24 phases.
More than $72 billion has been spent on the giant venture since work started and investments are forecast to reach $87 billion.