1 Scope
This document specifies the requirements and recommendations for the design, setting
depth and installation of conductors for the offshore petroleum and natural gas industries.
This document specifically addresses:
— design of the conductor, i.e. determination of the diameter, wall thickness, and steel
grade;
— determination of the setting depth for three installation methods, namely, driving,
drilling and cementing, and jetting;
— requirements for the three installation methods, including applicability, procedures,
and documentation and quality control.
This document is applicable to:
— platform conductors: installed through a guide hole in the platform drill floor and
then through guides attached to the jacket at intervals through the water column to
support the conductor, withstand actions, and prevent excessive displacements;
— jack-up supported conductors: a temporary conductor used only during drilling operations,
which is installed by a jack-up drilling rig. In some cases, the conductor is tensioned
by tensioners attached to the drilling rig;