The EPC contract for development of Phases 20 and 21 was signed in May 2009 between the National Iranian Oil Company (NIOC) and OIEC.

Offshore Facilities

Offshore Platforms

• One unmanned wellhead platform, for each phase of the project, equipped with the required production facilities
• Two relief platforms, each connected by bridges to the associated wellhead platform

Sea Lines

• Two 32” export sea lines (each with 4” piggy-back line) of 1000 mmscfd nominal capacity each will be installed to transport the raw offshore production from wellhead platforms to the onshore gas treatment plant

Onshore Facilities

• Receiving facilities for HP separation of raw gas and condensate / water mixture
• Condensate stabilization producing stabilized condensate for storage and export and light ends recycled in the HP gas system. One condensate flashing unit, normally not operated, is provided as a back-up of the stabilization facilities
• Gas treatment facilities producing sales gas, gaseous Ethane and NGL consisting of:
• H2S removal from gas / CO2 partial removal from gas
• dehydration unit, using molecular sieves technology
• Mercury guard
• Ethane extraction unit, producing sales gas, gaseous Ethane and NGL
• NGL fractionation facilities to produce sour liquid Butane and Propane
• Gaseous Ethane cut treatment for CO2 removal and drying for further export
• Propane and Butane treatment for Mercaptans removal and drying for further storage and export
• Propane and Butane separate atmospheric storage tanks (double wall), refrigerated and with reinforced concrete external walls
• Export gas compression to discharge the lean gas to pipeline pressure
• MEG regeneration and injection unit
• Sulfur recovery producing liquid Sulfur and solidification
• Off-site utilities, as required for operation

Drilling Operations

The following activities are generally required for drilling and testing 22 wells, including 2 appraisal wells (11 wells on each platform):
• Providing two cantilevered jack-up drilling rigs
• Procurement of all material required for drilling activities and completion
• Providing all necessary drilling services; i.e. mud, cementing, directional services, logging, etc.
• Logistics such as drilling operation base, supply boat, helicopter, etc.
• Drilling engineering and management