South Pars (Phase 20-21)

South Pars (Phase 20-21) Gas Field Profile

Location

The South Pars (Phase 20-21) gas field is located offshore in the Persian Gulf, Iran. It is part of the larger South Pars/North Dome gas-condensate field, which is shared with Qatar where it is known as the North Field. The exact coordinates for this phase are 26.8614, 52.1813.

Operator and Ownership

The South Pars (Phase 20-21) gas field is operated and owned by the National Iranian Oil Company (NIOC) through its subsidiary, Pars Oil and Gas Company (POGC).

Development and Construction

• The development of phases 20 and 21 was awarded to the OIEC Group, which handled both onshore and offshore aspects of the project.
• The project involved drilling 22 wells, installing two unmanned wellhead platforms, and laying two 32-inch subsea pipelines to transfer fluids to the onshore refinery.
• The onshore facilities were designed to supply treated lean gas to the domestic network, ethane gas to nearby petrochemical complexes, LPG (propane and butane) for export, and condensate for both export and domestic use.

Production

• Phases 20 and 21 are designed to produce 2 million million standard cubic feet per day (MMMSCFD) of natural gas.
• The production includes gas condensate, with a design capacity of approximately 27.38 million barrels per year.
• Additionally, these phases will produce LPG (propane and butane) for export and condensate for both export and domestic use.

Infrastructure

• The project includes the installation of two unmanned wellhead platforms and the laying of two 32-inch subsea pipelines to connect the offshore wells to the onshore facilities.
• Onshore facilities are equipped to process the gas and condensates, supplying treated lean gas, ethane, LPG, and condensate as per the project's requirements.

Completion and Start of Production

• Phases 20 and 21 of the South Pars project were officially commissioned in April 2017.

Economic and Technical Details

• Each phase of the South Pars development typically requires an initial investment of approximately $1 billion to $1.5 billion.
• The project involves significant capital and operating costs, with detailed economic analyses including cash flow, depreciation, and revenue distribution.

Significance

• The South Pars field is the world's single largest gas accumulation, with around 2,000 trillion cubic feet (tcf) of recoverable gas resources. Phases 20 and 21 are crucial components of this mega-project, contributing significantly to Iran's gas production and economic development.

In summary, the South Pars (Phase 20-21) gas field is a key part of Iran's extensive gas development program, operated by NIOC through POGC, and developed in collaboration with local and international companies. The project's completion has significantly enhanced Iran's natural gas production and processing capabilities.