Open hole abandoned well plugging process pipe column and plugging method

The invention relates to the technical field of oil and gas exploration and development, in particular to an open hole abandoned well plugging process pipe column and a plugging method. Comprising a conveying pipe column, a tail pipe releaser, a tail pipe and a drainage device which are sequentially arranged from top to bottom. A releasing rubber plug is arranged between the conveying pipe column and the tail pipe releaser. The upper portion of the releasing rubber plug is provided with a multi-stage disc matched with the inner wall of the conveying pipe column in a sealed mode, the inner wall of the tail pipe releaser is provided with one-way clamping teeth, and the lower portion of the releasing rubber plug is provided with a one-way clamping ring and a sealing ring which are matched with the one-way clamping teeth in a sealed mode. Blocking construction can be conducted on open hole abandoned well sections with any length at a time, construction efficiency is improved, the construction period is shortened,