| 摘要 |
<p>The present invention relates to a system for well operations, where the system comprises a first and second set of lifting systems, each set of lifting systems comprising a drawwork, a crown block, a travelling block, a top drive and a deadline anchor. Furthermore, the system for well operations has three operational modes, including: • - a first mode, where one of the first or second set of lifting systems is extended to an active state while the other set of lifting systems is retracted to a passive state, • - a second mode, where one set of the lifting systems performs preparation work while the other set of lifting systems performs a well operation, and • - a third mode, where the first and second set of lifting systems are connected to a common yoke.</p> |
