Flexible nipple for rotary steering system

The utility model relates to the technical field of petroleum and natural gas drilling, in particular to a flexible short section for a rotary steering drilling system, which mainly comprises an outer shell, a stepped surface wire passing groove, a joint data line channel and a body data line channel. Step surface wire passing grooves are formed in the step surfaces of the upper connector and the lower connector of the shell, connector data line channels are arranged in the upper connector and the lower connector of the shell in the radial direction, and body data line channels are arranged in the outer shell body in the radial direction. The step surface wire passing groove, the connector data line channel and the body data line channel are communicated, and a data line is arranged in the data line channel. Compared with a conventional rotary guiding bottom drilling tool assembly adopting a drill collar, the flexible short section is installed in the rotary guiding system bottom drilling tool assembly, the l