Top drives - Aker Solutions

Aker SolutionsDrilling TechnologiesTop drivesGame-changing modulartop driveAker Solutions delivers the MH modular derrickdrilling machine (MDDM) to advanced drill ships.This innovative technology gives maximum uptime,extreme performance and enhanced safety.Characteristics• The MDDM is designed to support toughrequirements, including a 99.9% uptime. This is atrue sixth generation top drive• The design is based on a downtime analysis of 72top drives from vendors over a five years period• Modular design and extensive use of quickconnectors improve maintenance and reduce theimpact on the critical path of the operation• Significantly improved main bearing design thatis based on actual measurements from high-enddeepwater rigsInnovative cooperationOffshore drilling contractor Transocean and AkerSolutions have designed a radically improved derrickdrilling machine that provides enhanced safety,efficiency and drilling uptime. The companies haveput considerable effort into identifying the currentand future limitations of available top drives and therelated design and components.Modular design improves uptimeTo offer the most-advanced capabilities in the offshoredrilling industry, the MDDM is designed to achievesavings through downtime prevention, reducing repairtime from days to a few hours. The modular designallows for quick replacement and repair of modules.Other savings include reducing out-of-service time foroverhauls and annual load path inspections, whichcan be done offline or during a rig move.Novel design principlesIn addition to the benefits of its modularity, the MDDMis based on novel design principles and factualoperational data resulting in superior quality design ofcritical components such as bearings, main shaft andmotors.A change in industryIn recent years top drives have been taken to theiroperational limits by increasingly aggressive wellprograms. As a result, top drives now have higherfailures rates, because they are working harder andwearing faster than ever before. The MDDM will playa pivotal role for clients’ efforts to overcome thesechallenges.Main benefitsThe MDDM enables rig operators to expand thesearch for new sources of energy while obtainingmaximum uptime, extreme performance andenhanced safety.> MH MDDM 1000AC