Dieksand Land Station controls onshore oil production and processing
Since the middle of the year 2000, with the use of progressive drilling technology, oil has also been produced from the eastern parts of the Mittelplate reservoir from the mainland. Experienced specialists now control the oil production from the Dieksand Land Station via process control systems.
The structural concept realised on the 55,000 m2 area of Dieksand Land Station is explicitly geared to meeting the requirement to minimise effects on the environment. The core of the land station is the process-technology plant for processing the oil produced from the Mittelplate oilfield.
Separators: The crude oil produced from the wells and transferred by field lines is separated into oil, natural gas and condensate in flat-lying 100 m³ 2-chamber containers. Accompanying water from the reservoir is isolated and pumped back to the oil reservoir in a closed circuit to maintain the pressure.
Machinery halls: Compressors and pumps used for oil and gas processing are housed in the machinery halls for sound insulation.
Gas dehydration plant: The gas separated in the oil processing is transferred to compressors that pump it to a gas dehydration plant. There, the oil gas is dried by two different methods (spray section with monoethylene glycol and cooling system at -9.0 ° C) and transported via a long-distance gas pipeline to Brunsbüttel.
Flat-bottomed tanks: The tanks, each with a capacity of 2,500 m3, are fitted with a monitored, walkable ring casing and a monitored collecting basin with double bottom. After successful purification the oil is pumped from here via pipeline to Brunsbüttel for hand-over to the buyers.
Operations buildings: The land station`s processing plant is monitored by specialists in the control room 24 hours a day. The buildings accommodate offices, control rooms, social areas, sanitary rooms, fire-fighting and the central heating system as well as workshops, laboratories and storage facilities.
Flare: In the extremely rare event of irregularities in the processing plant, it may happen that oil gas has to be burned off for safety reasons.
Washdown area: Parts of the processing plant will be prepared for repair or transportation on the washdown area. The used liquids are collected in an underground tank and pumped to the process water.
Rain retention basin: Rainwater from the sealed, paved traffic areas of the land station is collected in the basin. The chemical oxygen demand (COD) value of the water is checked on a regular basis.
Workshop and warehouse: Repair and assembly work with the appropriate special tools are carried out here.
Helicopter landing pad: In emergencies, the Dieksand Land Station can be approached by helicopter. The landing takes place on the designated landing area.