Luhais & Subba oil fields, which have already been partly developed, are located in southern Iraq. The Luhais oil field is located approximately 120 km west of Basra city and 60 km west of the existing Rumaila oil field. Subba oil field is located approximately 105 km southeast of Nassirya city and 30 km northwest of Luhais oil field
The State Company for Oil Projects (SCOP) issued a competitive tender for the further development of both fields under one project.
The Luhais development consists of one 50,000 bbl/d gas oil separation train at Luhais Central Station. The oil is exported via a 12 inch line to the PS-1 oil depot, 57.5 km northeast of the field. Approximately 10 MMSCf/d of gas is exported to the Gas Treating Unit at North Rumaila via a 12 inch pipeline. Gas from the downstream separation stages is currently flared.
For the Luhais development, the scope of this project included the tie-in of infill wells, developing a new satellite degassing station (Luhais North), and to expand the facilities at Luhais Central in order to increase design throughput from 50,000 bbl/d oil to150,000 bbl/d. Gas compression facilities with a design capacity of 26 MMSCF/d will be installed. A new gas dehydration unit, with a design capacity of 40 MMSCf/d, will be dedicated to the treatment of first stage separator off gas. The segregated gas streams will be transported via two new 55km gas export pipelines (one 24 inch and the other 28 inch) to an existing NGL plant at North Rumaila. Export routes for the increased crude oil production will consist of:
-Existing 12 inch crude oil pipeline to PS-1
-Existing 12 inch gas export pipeline to GTU-1 will be converted to oil export service and the end of this line will be re-routed from GTU-1 to PS-1 (approximately 3.5 km of new pipe required)