PIPE PULLING METHOD AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2024 - IPC E02F5/18 

FIELD: pipeline transport.

SUBSTANCE: invention relates to pipeline transport, in particular to construction of pipelines, and can be used for pulling pipes in wells. Pipe pulling device comprises series-connected expander, swivel, housing with branch pipes, wherein said housing is fitted on the shaft in bearings, secured on the shaft by means of a pin, and provided with a cover, on the outer end surface of which branch pipes are fixed, in which there are plugs installed with the possibility of fixing the pipes. Pipe pulling method consists in installation of bearings on the shaft, fixation of the housing on the shaft using a pin, fixed connection of housing with the cover, equipped with branch pipes, placing the plug in each drawn pipe and fitting them into the cover branch pipes, fixing with pins each drawn pipe with a plug in the corresponding branch pipe, serial connection of the shaft of the above device with the swivel, the expander and with the drill string and carrying out the pipes pulling through the borehole of the pre-drilled and expanded well. When the swivel is jammed, the torque from the drill string is transmitted to the shaft of the pipe pulling device, the shaft rotates, the pin is sheared under the action of the load, the shaft continues to rotate inside the housing on support bearings, excluding the transfer of torque to the drawn pipes until pipe pulling is completed.

EFFECT: trouble-free pulling of pipes.

4 cl, 3 dwg