Engineering for the jobs that are not routine.
Design work before mobilisation, analysis when a job is marginal, and an independent investigation when something has already gone wrong.
CT Job Design
A coiled tubing job should be designed before the unit is mobilised, not worked out on location. We produce or review the design: string selection, forces, hydraulics, fluid and nitrogen volumes, and the limits the operator must not exceed.
- String and unit selection for the well
- Tubing forces, lock-up and buckling analysis
- Circulating pressures and hydraulics
- Fluid and nitrogen volume calculations
- Operating envelope and stop criteria for the job programme
Engineering Analysis
Independent engineering for the jobs that are unusual, marginal or have already gone wrong. Extended reach, high differential pressure, deep clean-outs, milling programmes and stuck-pipe incidents.
- Extended-reach and reach-limit assessment
- Fatigue life and string retirement decisions
- Stuck string, lock-up and parted-string investigation
- Failure and non-productive-time root cause analysis
- Second opinion on a third-party programme
Cerberus Modeling
Modelling in the NOV CTES Cerberus suite: tubing forces, hydraulics and fatigue tracking. We build the model, sanity-check the inputs against reality, and explain what the output does and does not prove.
- Model build and input validation
- Forces and hydraulics simulation per job
- String fatigue tracking across a campaign
- Sensitivity analysis on the marginal cases
- Engineer training on correct model use
Operational Consulting
Advisory work on how a coiled tubing or pumping operation is run: base set-up, fleet and maintenance strategy, crew structure, service quality and the discipline that keeps non-productive time down.
- Operational audits and improvement plans
- Start-up planning for a new base or country
- Fleet, spares and maintenance strategy
- Crew structure, rotation and resourcing
- Service quality reporting and KPIs
