Hoisting Systems

A variety of derrick designs are offered, which typically range from 800,000 lbs to 2,500,000 lbs static hook load. Aker Solutions has an in-house engineering group, capable of supplying a multitude of derrick designs, sizes, capacities and features. We design and fabricate custom derrick geometries that meet our customer's unique specifications requirements. These custom geometries include asymmetrical derricks, offset well center derricks, and straight taper derricks. This flexibility allows our customers to decide which design would provide the most optimal scenario.

Whether it is for semi-submersibles, drill ships, barges or floating vessel types, we can custom design and fabricate derricks to accommodate customer specific loading and operating conditions and parameters. Variables such as roll-pitch-heave, hook load, setback load, wind speed, top drive torque, list, and center of rotation are all analysed in combination with specific operating conditions and parameters.

We can design and fabricate bolted dynamic derricks, while offering a virtually unlimited variety of custom derrick sizes, capacities, design variables and conditions. These custom structures allow the customer a greater flexibility for the design criteria for the specific rig. We will build up the derricks in a 3D model for a smooth integration with the equipment.