Coiled Tubing & Nitrogen Operations in Completion & WorkoverCOMP/CTAE

Who should attend?

  • This course provides a comprehensive, practical knowledge of coiled tubing equipment and operations on a producing well.
Audience :
  • Engineers, supervisors, technicians from operating or service companies, involved in completion, workover and stimulation.

Level : Proficiency

Course Content

  • BASIC DATA

      • Importance of nitrogen in stimulation and workover.
      • Importance of coiled tubing in completion and workover.
  • NITROGEN - NITRIFIED ACID - FOAMED ACID

      • Nitrogen (properties, basic formula for design).
      • Specifications for nitrogen storage and pumping equipment.
      • Two-phase fluids and foams (properties, chart and tables for design, difference between foam and two phase fluids), diverting effect of foamed fluid.
      • Stimulation methodology, flow back procedure.
  • COILED TUBING EQUIPMENT (technology, dimension, weight)

      • Main components: reel, injector, BOP and related equipment.
      • Auxiliary equipment: crane, pumping equipment, etc.
      • Downhole tools: connectors, safety equipment, circulating tools, downhole motor, fishing tools, inflatable packers, etc.
      • Guide for safe equipment rig-up.
  • PIPE CHARACTERISTICS & BEHAVIOR

      • Geometric and mechanical properties: geometry, metallurgy, performance, characteristic curve.
      • Tubing behavior (at surface, in hole): fatigue, buckling, tension and pressure limits (tubing force analysis, model for operation design).
      • Measuring and recording of operating parameters.
  • COILED TUBING APPLICATIONS

      • Kick off with nitrogen, underbalance perforating.
      • Well clean out (fill removal, wax and hydrate removal).
      • Sand control.
      • Matrix treatment: acid, solvent.
      • Other applications: CT assisted DST, conveyed tool operations in high deviated well, use as producing, gas-lift or chemical injection string, fishing, underreaming, drilling.
      • Statistics, economy, areas for future development.
  • CEMENTING OPERATIONS WITH NITROGEN OR COILED TUBING

      • Foamed cement: definition, use (primary cementing, squeeze).
      • Cementing through coiled tubing: cement plug, squeeze (squeeze slurry characteristics, job design, key-points).

Learning Objectives

  • Upon completion of the course, participants will be able to:
  • learn about coiled tubing applications in completion and workover,
  • design coiled tubing programs (wellbore treatment, logging, cementing, lifting and drilling).

Ways & Means

  • Exercises - Animations.