A drill pipe assembly includes a first drill pipe and a second drill pipe disposed in a wellbore. The first drill pipe includes a tubular wall and a threaded end at a downhole end of the tubular wall. The second drill pipe is disposed in the wellbore downhole of and fluidically coupled to the first drill pipe. The second drill pipe includes a tubular wall and a threaded end corresponding with and configured to receive the threaded end of the first drill pipe to form a connection. At least one of the first drill pipe or the second drill pipe includes an annular groove residing between a respective tubular wall and a respective threaded end. The drill pipe assembly is collapsible at the annular groove under a torque smaller than a torque required to collapse the connection.