In one of the 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 gasoline. From water bottles to the insulation in our properties, natural fuel is a key ingredient in just about every product we use daily. According to the latest report issued by the International Gas Union (IGU) in 2019, the global demand in gasoline has been rising by 35% of the past decade alone.
The reasons for this trend are manifold, however the IGU determines three major components. First, the fee competitiveness of gasoline in contrast to different power sources. Secondly, higher security of supply with regard to infrastructure, delivery, and flexible use. Thirdly, fuel represents a sustainable form of energy that can mitigate local weather change and decrease localized air pollution. It has 50% fewer CO2 emissions compared to coal, for instance.
In order to fulfill this rising demand and use, the eco-friendly potential fuel should be extracted utilizing a sustainable process. One of the most important systems is the Åsgard oil and gasoline area on the Haltenbanken, 200 km off the coast of Norway. It contains 52 wells mixed in 16 gas fields and connected by 300 km of oil pipelines. As of December 2018, the sphere has estimated sources of 9.9 million normal cubic meters of oil equivalent of oil and fifty one.1 million commonplace cubic meters of oil equal 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 permanently since extraction began in 1999. Åsgard B is a floating, semi-submersible gas and condensate processing platform for processing and stabilizing of gasoline 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 complex to the north of Stavanger, Norway.
First in the world Aker Solutions ASA has been supporting the Åsgard fuel area with numerous gas subject products, techniques, and providers since 2010. In time, the strain within the storage facility in gas-producing fields drops. Compressors are wanted to sustain the output. Aker delivered the first-ever underwater compressor system worldwide to Åsgard to have the ability 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 utilizing compressors on the seabed the recovery rates are improved and the investment and operating costs are decreased. 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, however important
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 production of submersible motors. Due to the renewable winding, ANDRITZ submersible motors are appropriate for driving deep nicely pumps, backside consumption pumps, suction pumps, seawater pumps, and underwater machinery.
Depending on the realm of software, the motors could be made from cast iron, bronze or totally different kind of chrome steel and installed either 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 permanent magnet motor know-how, or IPM for short, these maintenance-free motors can achieve spectacular outputs, efficiencies and, in consequence, value savings.
The efficient and measurable motor cooling system retains the interior temp- erature as little as possible. Drinking water is used as a cooling liquid, which is why the motors can operate in media of up to 75° C. An impeller with optimized suction and supply is mounted at the decrease shaft finish of the rotor. One of its two main duties is cooling and lubricating the nearby thrust bearing. By doing so, the impeller ensures there is a fixed flow of cooling liquid in the right path.
This liquid moves by way of the inside of the motor from the underside to the highest. pressure gauge วัด แรง ดัน น้ำ developed cooling channels define the exact path over all heat sources to discharge the warmth successfully and systematically. At the highest finish, the warmth from the liquid is then discharged via 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 only a tiny a half of the underwater compressor system, however they’re additionally an extremely necessary part. The entire underwater station can’t operate without 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 these liquids that are removed by the separator upstream of the fuel compressors.
In 2017, as a result of a failure in part of the system which was not provided by ANDRITZ, the motor was sent in for repairs, throughout which an intensive study was conducted. Thermal distribution in the cooling move and the recent spots have been analyzed in additional detail. The outcomes additionally led to the design of a model new plate crosssection for the rotor plates.
Because of this, the motor to be repaired was also completely overhauled and fitted with a brand new winding and a model new rotor. This study and the implementation of its findings not solely profit the present buyer and future clients in this case, but also strengthen confidence within the ANDRITZ submersible motor expertise.
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