Drilling MPD, HPHT, Extended Reach? Pressure related problems? Losses, influx, hole stability issues? THE ANSWER IS TEMPERATURE

by Olli Coker

DID YOU KNOW?

MPD, CFD, and Mud Vendor Viscosity programs do a great job, but often with the WRONG temperatures. This directly impacts the prediction of Density and Viscosity of the mud that lead to inaccurate cuttings lift predictions, and pressure profile assumptions. Even with PWD, the pressure profile between the tool and the surface is not linear.

A Thermal History is required to begin with.  From spud to abandonment, the thermal profile changes with each operation, seldom if ever returning to its starting point (Undisturbed Geothermal Temperature Profile).  And these aren’t all just small changes! If you are not tracking the thermal history, then predictions for Density, Viscosity, Cuttings Transport, Pressure Profile, Thermal Degradation are all wrong.  Perhaps exceptionally wrong!

A well that is drilled from a platform, pad, subsea clusters, or which makes a deep passing approach to another well will be thermally influenced by the temperature changes arising from operations in those offset wells.  The same is true in secondary or tertiary recovery areas or even in areas where a disposal well is operating – even when these wells are far away.  Up until now, these unexpected temperatures have been dismissed as mysteries of the oilfield.

Play a video on Multiwell - 2 wells thermally interfering!

Altus Well Experts have the Tools, Expertise, and Experience to provide sound thermal predictions, as well as stress analysis, failure analysis, advanced torque and drag modeling, and much, much more throughout temperature ranges from Arctic to High Temperature Geothermal operations and beyond.