Recover your BHA before and after reaching total depth
Our retrievable drilling-with-casing (DwC) system enables you to not only drill and ream with casing but also retrieve the bottomhole assembly (BHA)—without pulling the entire casing string. This capability makes the system well suited for vertical, inclined, and extended-reach drilling wells that often result in damaged drilling tools and require directional drilling technologies.
With this retrievable system, you can replace damaged or worn BHA components before reaching total depth (TD). You can also recover expensive advanced measurement systems after reaching TD. The system comprises four key parts: the latch assembly, workstring-release retrieval device, hydraulic releasing device, and hydraulic locking device.