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Mammoet Sets New Milestone with 19,600-tonne PDQ Platform Installation in the Caspian Sea

Mammoet, has achieved a significant milestone by successfully completing the installation of a 19,600-tonne Production, Drilling, and Quarters (PDQ) platform in the Caspian Sea. This remarkable feat is a pivotal component of the Azeri Central East (ACE) project, marking the next phase in the development of the bp-operated Azeri-Chirag-Deepwater Gunashli (ACG) field.

The operation encompassed a meticulously orchestrated series of maneuvers, including the precise weighing, jack-up, load-out, and floatover installation of the colossal PDQ platform. Mammoet leveraged its formidable engineering expertise to ensure the smooth transfer of the topsides unit from quayside to the transportation barge STB-1, and subsequently onto the offshore jacket foundation. This meticulous onshore commissioning and testing significantly streamlined the offshore installation process.

At the quayside, Mammoet employed its formidable Mega Jack 5200 system to expertly elevate the topsides unit to a towering 17 meters. The unit was then gently lowered onto a custom loadout support frame, setting the stage for its journey to the ACG field. The delicate skidding operation onto the barge’s deck involved a symphony of precision, utilizing four 900-tonne strandjacks, break-out jacks, a high-capacity ballast system, and an array of monitoring equipment.

Upon arrival at the designated field location, Mammoet executed a flawless floatover operation, carefully positioning the barge over the substructure. The topsides unit was then lowered onto the substructure, all while maintaining the barge’s precise position. The addition of Mammoet’s advanced ballasting and winching systems further ensured operational continuity and a secure floatover process.

Beyond its technical marvel, this project boasts an exceptional safety record. More than 21 million hours were worked without a single injury during the construction of the 19,600-tonne topsides unit. Constructed by Azfen in the Bayil fabrication yard, this unit incorporates vital oil and gas processing facilities, an integrated drilling rig, a gas compressor, and living quarters, all crafted with the utilization of local infrastructure and resources.

Mammoet’s pivotal role in integrating the platform’s DES and MDSM modules, totaling 2,400 and 2,350 tonnes respectively, underscores the company’s multi-faceted capabilities. The seamless operation was made possible through the combination of Mammoet’s advanced jacking and skidding systems, along with Self-Propelled Modular Transporters (SPMTs).

Drilling operations are slated to commence in the coming months, with ACE’s first oil anticipated to flow in early 2024.

Dan Kempin, Business Development Manager for Mammoet, expressed, “This successful operation stands as a testament to Mammoet’s dedication to excellence in engineered heavy lifting and transport, as we continue to redefine industry standards through our innovative solutions and steadfast commitment to safety.”

Source: Mammoet

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