CompAir solutions for Al-Nasr Full Field Development Project, Abu Dhabi
Gardner Denver received orders from Hyundai Heavy Industries (HHI) for supply of the air compression facilities, in turn enabling HHI to fulfill its obligations to Abu Dhabi Marine Operating Co. under the contract for EPC work relating to the Nasr Full Field Development Project (Package 2). The super complex facility, comprising a gas treatment platform, had been installed 131km north west of Abu Dhabi City, making it possible to increase the daily oil production capacity of the offshore field to 65,000 barrels, from the previous 22,000 barrel capacity.
Our team carried out the plant design as a first step. The scope of supply included the design, fabrication, supply, inspection, transportation, testing and commissioning of the compressed air equipment and plant systems, including all accessories and elements necessary for its operation.
The solution delivered, consists of 4 oil free rotary screw compressors, 2 sets of heatless desiccant type air dryers, 2 DCS/ESD UCP and UCP (BN3500) machine monitoring systems, filters and accessories. The mechanical packages were allocated outdoor/top side (celler deck) and DCS/ESD and MMS UCPs were allocated indoor (LER).
The compressed air station is provided with a PLC connected to the instrumentation, which by utilising hardwired signals, manages the whole system without operator intervention.
The compressors have significantly fewer moving parts than comparable machines, meaning there is less to go wrong, while lower speeds and balanced bearing loads extend the compression element service life for low-cost operation. With exceptionally low running temperatures of less than 60°C, near isothermal compression is achieved. This also eliminates the need for an internal aftercooler and the associated power consumption reduces pressure drop to a minimum.
The use of absolutely no oil negates the issues of contaminated air.