Innovative technology is being developed to cost effectively support oil companies returning to old or mature fields to unlock more oil, as well as supporting new discoveries.
The modular work over rig from Rolls-Royce is designed to be simple to install and set-up on any type of fixed installation. It comprises a derrick, pipe handling system, a complete drilling floor, and a sub-structure with skid system as a foundation for the drilling deck and transition piece, that is mated to the existing structure of the platform.
The complete rig is made up of some 20 modules for ease of transport and assembly. As each module typically weighs under 35t, they can be lifted into position using the platform’s own crane. Modular construction also allows the rig to be put ashore between jobs, or easily moved from platform to platform.
Development of a prototype modular workover rig is well advanced and is receiving extremely good feedback from oil companies and service operators that need such equipment.
Most types of well intervention, both light and heavy, can be carried out using this modular workover rig. These include the various wirelining procedures, running coiled tubing or jointed pipe, and also drilling to extend existing wells into hydrocarbon layers in the field that have not yet been drained.