In one of many world’s largest oil and gasoline fields, the firstever underwater compressor system employs ANDRITZ submersible motors. With their renewable winding these maintenance-free designed pumps have achieved spectacular outcomes.
We are surrounded by gas. From water bottles to the insulation in our properties, pure fuel is a key ingredient in virtually each product we use daily. According to the most recent report issued by the International Gas Union (IGU) in 2019, the global demand in fuel has been rising by 35% of the previous decade alone.
The causes for this development are manifold, but the IGU determines three main components. First, the price competitiveness of gasoline in distinction to other power sources. Secondly, larger security of provide with regard to infrastructure, supply, and versatile use. Thirdly, fuel represents a sustainable form of vitality that can mitigate climate change and lower localized air pollution. It has 50% fewer CO2 emissions in comparison with coal, for instance.
In order to meet this growing demand and use, the eco-friendly potential gas should be extracted using a sustainable course of. One of the largest systems is the Åsgard oil and gas area on the Haltenbanken, 200 km off the coast of Norway. It accommodates fifty two wells combined in sixteen gasoline fields and connected by 300 km of oil pipelines. As of December 2018, the sphere has estimated assets of 9.9 million normal cubic meters of oil equal of oil and fifty one.1 million standard cubic meters of oil equivalent of gas.
The system used comprises three essential areas: Åsgard A, B, and C. Åsgard A is a floating oil production vessel that has been anchored there completely since extraction started in 1999. Åsgard B is a floating, semi-submersible fuel and condensate processing platform for processing and stabilizing of gas and condensate. This platform is supplemented by the condensate storage facility Åsgard C and the 707 km-long Åsgard fuel pipeline to the Karsto processing advanced to the north of Stavanger, Norway.
First on the planet Aker Solutions ASA has been supporting the Åsgard fuel subject with various gasoline area products, systems, and companies since 2010. In time, the strain within the storage facility in gas-producing fields drops. Compressors are wanted to sustain the output. เกจวัดแรงดันลมดิจิตอล delivered the first-ever underwater compressor system worldwide to Åsgard to find a way to enhance the output to 306 million barrels. These are usually put in on platforms above sea level.
However, Åsgard relies on an underwater system. By utilizing compressors on the seabed the recovery charges are improved and the investment and working prices are lowered. In addition, underwater compression leaves a smaller ecological footprint and is more dependable than a platform. The Åsgard system consists of modules for 2 similar sets of compressors, pumps, scrubbers, and coolers. The motors wanted to drive the pumps come from ANDRITZ.
Small, but essential
In 2010, Ritz Pumpenfabrik GmbH in Schwäbisch-Gmünd, Germany, became ANDRITZ Ritz GmbH and a half of the ANDRITZ Group, as did the manufacturing of submersible motors. Due to the renewable winding, ANDRITZ submersible motors are appropriate for driving deep well pumps, bottom consumption pumps, suction pumps, seawater pumps, and underwater equipment.
Depending on the world of software, the motors may be manufactured from forged iron, bronze or totally different type of stainless-steel and put in both vertically or horizontally. These are water-filled and watercooled, three-phase asynchronous motors with squirrel cages and a mech- anical seal. They are fitted with MCT, a special cooling expertise. In designs with interior everlasting magnet motor technology, or IPM for brief, these maintenance-free motors can obtain spectacular outputs, efficiencies and, in consequence, price financial savings.
The effective and measurable motor cooling system keeps the inside temp- erature as little as potential. Drinking water is used as a cooling liquid, which is why the motors can operate in media of as a lot as 75° C. An impeller with optimized suction and supply is mounted on the decrease shaft finish of the rotor. One of its two major tasks is cooling and lubricating the nearby thrust bearing. By doing so, the impeller ensures there is a constant move of cooling liquid in the right course.
This liquid strikes by way of the inside of the motor from the bottom to the top. The specifically developed cooling channels define the precise path over all heat sources to discharge the heat effectively and systematically. At the top finish, the warmth from the liquid is then discharged by way of the motor’s outer wall. Here, it’s transferred by way of the surface of the motor to the medium to be pumped.
The ANDRITZ submersible motors are just a tiny part of the underwater compressor system, however they are additionally an especially necessary part. The whole underwater station can’t operate with out these motors to drive the pumps. Since first being installed in 2016, these submersible motors have been operating without any faults. All in all, ANDRITZ Ritz delivered three twopole submersible motors with an output of 736 kw. The motor types the condensate unit along with the pump and conveys those liquids that are removed by the separator upstream of the gasoline compressors.
In 2017, as a result of a failure in part of the system which was not supplied by ANDRITZ, the motor was despatched in for repairs, during which an extensive research was carried out. Thermal distribution in the cooling flow and the hot spots had been analyzed in additional element. The results also led to the design of a new plate crosssection for the rotor plates.
Because of this, the motor to be repaired was also utterly overhauled and fitted with a model new winding and a new rotor. This research and the implementation of its findings not only benefit the present buyer and future prospects on this case, but in addition strengthen confidence within the ANDRITZ submersible motor know-how.
Share