CDrill – Drilling Conductor Design & Simulations

About CDrill
App to calculate the stress state of a tensioned drilling conductor due to wave and current action during installation and operation. Airy or Stokes wave theory determines the wave parameters: wave length and water particle kinematics. Morison’s equation calculates the wave forces on the conductor. The stress state of the conductor is verified using ISO 19902.

CDrill
Features graphical representation and click-and-drag interface, to make for user-friendly operation. Drilling deck height, conductor protrusion below drilling deck and tensioner force are easily adjusted by sliders. During use, the App calculates continuously so as to rapidly verify the stress state of the conductor.

Utilization under combinations of moment and axial forces for extreme and operating cases are reported in a table format.

A sketch of the drilling rig and platform structure with horizontal conductor supports are displayed for the user to intuitively verify the data input and calculations.

Fatigue life estimation can be performed using DNV S-N curves and wave scatter input.

Drill string loading on top of the conductor is calculated by the software based on drilling trajectory design. 

Major Features

  • Change environmental data and analysis parameters by tap of grid input
  • Change conductor pipe data and material parameters by tap of grid input
  • Tap button to swap between ‘installation’ and ‘operation’ modes
  • Tap button to swap between ‘open sea drilling’ and ‘on-platform drilling’ modes
  • Slider to move drilling deck up/down
  • In installation mode, use slider to lower/raise conductor
  • In drilling/operation mode, use slider to increase/decrease tension
  • In ‘on-platform drilling’ mode, user can change the number of horizontal supports and their elevations.

Benefits

  • Cloud based platform, use anywhere
  • Ideal for drilling onsite work
  • Extremely efficient, instant analysis results.

Disclaimer

The user is responsible for usage of results obtained from this software. Neither the developer, distributor nor agency assumes any legal liability or responsibility for the accuracy, completeness or usefulness of any information, process or result of this software.

For further information and to arrange for a demonstration contact us here