In one of many world’s largest oil and fuel fields, the firstever underwater compressor system employs ANDRITZ submersible motors. With their renewable winding these maintenance-free designed pumps have achieved impressive outcomes.
We are surrounded by gasoline. From water bottles to the insulation in our properties, natural gasoline is a key ingredient in just about each product we use every day. 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, however the IGU determines three main factors. First, the price competitiveness of gas in distinction to different energy sources. Secondly, larger safety of provide with regard to infrastructure, delivery, and versatile use. Thirdly, gas represents a sustainable type of vitality that may mitigate local weather change and decrease localized pollution. It has 50% fewer CO2 emissions in comparability with coal, for instance.
In order to meet this growing demand and use, the eco-friendly potential fuel will have to be extracted utilizing a sustainable course of. One of the most important systems is the Åsgard oil and fuel subject on the Haltenbanken, 200 km off the coast of Norway. It contains 52 wells mixed in sixteen gas fields and linked by 300 km of oil pipelines. As of December 2018, the field has estimated assets of 9.9 million standard cubic meters of oil equal of oil and fifty one.1 million commonplace cubic meters of oil equivalent of fuel.
The system used includes 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 gasoline pipeline to the Karsto processing advanced to the north of Stavanger, Norway.
First on the planet Aker Solutions ASA has been supporting the Åsgard gas area with various fuel subject merchandise, methods, and companies since 2010. In time, the stress within the storage facility in gas-producing fields drops. Compressors are needed to sustain the output. Aker delivered the first-ever underwater compressor system worldwide to Åsgard so as to enhance the output to 306 million barrels. These are usually installed on platforms above sea level.
However, Åsgard is predicated on an underwater system. By using compressors on the seabed the restoration charges are improved and the investment and operating prices are reduced. In addition, underwater compression leaves a smaller ecological footprint and is more dependable than a platform. The Åsgard system consists of modules for two similar sets of compressors, pumps, scrubbers, and coolers. The motors needed to drive the pumps come from ANDRITZ.
Small, but essential
In 2010, Ritz Pumpenfabrik GmbH in Schwäbisch-Gmünd, Germany, grew to become 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, backside intake pumps, suction pumps, seawater pumps, and underwater machinery.
Depending on the area of utility, the motors can be manufactured from forged iron, bronze or 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 particular cooling know-how. In designs with interior everlasting magnet motor technology, or IPM for short, these maintenance-free motors can obtain spectacular outputs, efficiencies and, consequently, price financial savings.
The effective and measurable motor cooling system keeps the interior temp- erature as low as attainable. Drinking water is used as a cooling liquid, which is why the motors can function in media of as a lot as 75° C. pressure gauge ราคา ถูก with optimized suction and delivery is mounted on the lower shaft finish of the rotor. One of its two major tasks is cooling and lubricating the close by thrust bearing. By doing so, the impeller ensures there is a constant move of cooling liquid in the proper path.
This liquid moves via the inside of the motor from the underside to the highest. The specifically developed cooling channels outline the precise path over all heat sources to discharge the warmth effectively and systematically. At the highest end, the heat from the liquid is then discharged through the motor’s outer wall. Here, it’s transferred via the floor of the motor to the medium to be pumped.
The ANDRITZ submersible motors are just a tiny a half of the underwater compressor system, but they are also a particularly essential half. The entire underwater station can’t function 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 varieties the condensate unit together with the pump and conveys those liquids that are eliminated by the separator upstream of the gas compressors.
In 2017, as a end result of a failure in part of the system which was not provided by ANDRITZ, the motor was despatched in for repairs, throughout which an intensive study was performed. Thermal distribution in the cooling flow and the new spots were analyzed in more element. The outcomes additionally led to the design of a new plate crosssection for the rotor plates.
Because of this, the motor to be repaired was also completely overhauled and fitted with a new winding and a model new rotor. This study and the implementation of its findings not solely profit the current buyer and future clients on this case, but also strengthen confidence within the ANDRITZ submersible motor expertise.