Auxiliary rig and method of removing a well tubing from a petroleum well

The invention is method of removing a well tubing (1) from a well (10), comprising: - arrange an auxiliary rig (20) over a wellhead (12), said auxiliary rig (20) having a base frame (22)and a pivotable arm (21) with a tubing collar elevator (32) with a first tubing gripper (33) arrangedfor travelling at least in the vertical direction,b) - lower said first tubing gripper (33) at a protruding tubing collar (2) of said well tubing (1)extending out above said wellhead (12) and into a lower part of said auxiliary rig (20); c) - engage said first tubing gripper (33) with said protruding tubing collar (2);d) - pull said gripper (33) to travel upwardly with said upper tubing collar (2), thus also said welltubing (1), until a subsequent tubing collar (2) protrudes in the lower part of said auxiliary rig (20); f) - engage a second tubing gripper (24) with said well tubing (1) below said subsequent tubingcollar (2); g) - cut off a tubing length (L) of said tubing (1) at or above said subsequent tubing collar (2);h) - lay down said pivotable arm (21) with said cut-off tubing length (L) to a horizontal orientation,i) - release said first tubing gripper (33) and remove said cut-off tubing length (L) from said verticalarm (21); ji) - raise said pivotable arm (21) back to the vertical orientation. Repeat in order to pull up and cut the entire tubing into cut-off sections, dump all to basket and transport away.