How does Centek validate its simulation results against actual downhole performance?
Centek compares predicted performance with data recorded during the actual casing, liner or tubing run.
Centek’s proprietary simulation software combines physical product test data with well-specific information to model factors including well trajectory, standoff, side loads, running forces, torque and drag, hookload and centralizer placement. This helps engineers assess whether the string can safely reach TD while providing the standoff required for effective cement placement.
Field results provide an important way of validating these predictions.
- In a 12,654 ft cemented monobore operation offshore Sabah, the actual hookloads closely matched the pre-job simulation data.
- In a Norwegian North Sea slot-recovery operation, the recorded running forces also matched the torque-and-drag model predictions.
These comparisons help validate the friction factors, product data and spacing assumptions used in the model. They also demonstrate that simulation can do more than support a centralizer recommendation: it can provide an evidence-based foundation for selecting the right product, quantity and placement before the string is run.
Simulation results depend on the quality of the well data and assumptions supplied, so each assessment should be based on the latest available survey and application information.
