The invention relates to a method for positioning an end (19) of a first
pipe section (14) relative to an end (20) of a second pipe section (18),
the method comprising: (a) prepositioning the end (19) of the first pipe
section (14) near the end (20) of the second pipe section (18), defining
a connection area (51) comprising the respective ends (19, 20) of the
first and second pipe sections (14, 18); (b) performing a measuring
process comprising a plurality of measuring steps, each measuring step
comprising: (b1) moving a sensing device (86) to a location (89a, 89b,
89c) near the connection area (51); (b2) automatically measuring the
location (89a, 89b, 89c) of the sensing device (86) relative to a
reference location (87); (b3) automatically measuring point positions
(98a, 98b, 98c, 98d) of points on the ends (19, 20) of the first and
second pipe sections (14, 18) relative to the sensing device location
(89a, 89b, 89c); (c) determining a target position of the end (19) of the
first pipe section (14) relative to the end 20) of the second pipe
section (18) on the basis of the measured point positions (98a, 98b, 98c,
98d); and (d) moving at least one of the first and second pipe sections
(14, 18) in order to obtain the target position.