Offshore staff
ABERDEEN, UK – Deep Casing Tool (DCT) claims its MechLOK drill pipe swivel (DPS) is the first mechanical system of its kind, helping to address challenges associated with extended reach drilling (ERD) by allowing operators to deploy completions into longer and more complex well trajectories.
ERD can maximize reservoir exposure to a single wellbore, providing access to reserves that might otherwise be uneconomic or difficult to reach. But there are issues with the technique such as high drag and torque.
DCT says its new DPS can be run on any string where potential problems exist in reaching target depth because of frictional problems, as is typically the case with long, horizontal extended reach drilling.
The MechLOK system enables rotation of the drill pipe above the liner in an ERD well, reducing drag, re-distributing friction and mitigating helical buckling of the work-string.
It also, DCT claims, increases the available weight to push completions and liners to target depth in ERD wells, while ensuring safety and cost efficiency.
The system can be locked instantly locked and prevented from swivelling via a mechanical manipulation of the drill string. Once locked, the tool can be rotated to the right or left, in compression or in tension.
DCT has secured a UK patent and patents are also pending in Norway, the US, Canada, the UAE, and Saudi Arabia.
05/07/2020
