IPSCO CONNECTIONS RUNNING MANUAL 6
Spinning Coupling
Ensure the mill end pin is made up to the center of the coupling to prevent spinning couplings.
Tenaris allows coupling movement of no more than ½ turn on the mill end during make-up.
Back-up tongs can be placed on the lower half of the coupling if the coupling spins during make-up.
A ruler or caliper may be used to verify the coupling position. Measure from the coupling face to the
pin nose face. The acceptable length is ½ the overall coupling length ± 1/32”. Take two readings
180° apart and verify that both readings are within tolerance, if either reading is out of tolerances,
take two more and average the four readings.
Downhole Rotation
Tenaris recommends using the minimum amount of torque necessary to break the friction between
the tubing or casing and the well bore if downhole rotation of the string is required.
The ULTRA™ DQX-SR connection should not be rotated beyond the specified operating torque and
RPM should be limited to 40 RPM or lower.
Care should be taken to gradually increase and decrease torque when rotating to allow the stored
kinetic energy to dissipate and prevent downhole connection yielding or break out.
Tenaris advises caution as the torque measurement accuracy and dump-valve response time may vary
depending on the specific equipment used.
Seal Ring Installation
Before installing the seal ring, both the Box groove and the seal ring must be dry and free of debris.
Place the seal ring in the box groove until the ring snaps into the box groove. If necessary, use a non-
metallic tool to properly seat the seal ring.