Velesto Energy Berhad ordered the two Chela Twins cranes for its NAGA 6 jack-up drilling rig in November 2021. The Chela Twins are two independently operated cranes designed to work in pairs on a cantilever to create the best combination of reachability, handshake capabilities, and construction simplicity.
Featuring a telescopic crane boom, Chela Twins are a cost-competitive alternative for the Chela Single crane. In 2019, the first Chela crane was delivered to Maersk Drilling and installed onboard the Maersk Invincible, an ultra-harsh environment GustoMSC CJ70 jack-up drilling rig design. It has proven its claims while operating at the Valhall field in the Norwegian North Sea for Aker BP.
The Chela series of multifunctional arms offers an extra hand in operations. Due to its crablike motion characteristics, Chela can reach below the cantilever as well as reach toward the main deck, providing crane access to an area traditionally blocked by the cantilever when drilling.
Chela provides an advantage in development drilling, infill drilling, and plug and abandonment operations. Depending on the well-program, the total time saved varies between 5 and 15% of the total rig days per well. This proven technology represents a robust opportunity to improve the return on investment (ROI) for every well drilled. With fewer rig days per well, Chela directly reduces the industry's environmental footprint and costs.