Coiled Tubing professional course

Explore hydraulic energy and control systems for coiled tubing, covering power pack functions, hydraulic circuits, injectors, reel mechanics, and safety features.

Explore injector circuit basics by examining injector head motors, hydraulic pumps and controls, covering radial and axial piston motors, swashplate adjustment, speed control, brakes, counterbalance valves, and load sensing.

Understand the high-pressure open-loop injector circuit, including the diesel engine, axial piston pump, injector heads, swashplate and pressure compensator, plus load-sense feedback and Manson Tyson control for precise pump output.

Learn injector mechanics for coiled tubing, focusing on the forward chain system with gripper blocks, traction, and chain tension, plus gooseneck alignment and hydraulic ram controls.

Explore coiled tubing forces, including buckling stresses and fatigue, and learn how weight, drag, buoyancy, friction, and torque shape the axial, normal, and torsional loads to prevent failures.

Explore how coiled tubing buckling affects drag, weight on bit, and wellbore reach, including residual curvature, sinusoidal and helical buckling, and lookup limitations.

Compute tri-axial coiled-tubing stresses from axial, radial, hoop, and bending components under internal and external pressures and torque, and stay within 80% of yield using the simulator.

Explore how alternating dynamic stresses lead to fatigue failure in coiled tubing, from crack initiation to propagation. Identify strategies to extend fatigue life, including gooseneck radius and internal pressure.

Explore coiled tubing pumping operations, focusing on fill removal and scale removal, with attention to fluid rheology, jetting action, circulation methods, and operator safety.

Master acidizing pumping operations to restore formation permeability with near-wall pore acidizing (matrix stimulation), wellbore acidizing, and acid fracturing, including diversion and coil-tubing advantages.

Learn to cut tubulars with chemical and abrasive jet cutters, observe standoff and circulation, place cement, gypsum, sand, or polymer slurry plugs, and apply nitrogen unloading.

Explore mechanical operations with coiled tubing, including setting plugs and gauges, fishing with overshots, and coiled-tubing drilling with downhole motors, while noting limits due to depth and hole size.

Explore permanent coiled tubing installations through read completions, velocity strings, and uniform outer diameter production conduits, with external offset components, injectors, and pre-assembled configurations.

Explore offshore flowlines as permanent coal tube installations—vessel-laid, reducing installation time and costs by up to 55–75%, lowering pressure losses by 15–20%, and enabling subsea reel deployment.

Learn how permanent coiled tubing installations repair casing and tubing leaks by inserting a stretched plastic liner that crosses the damage and expands to seal with an interference fit.

Explains coiled tubing well control contingency plans, detailing primary, secondary, and tertiary barriers, and step-by-step responses to stripper leaks and leaks above secondary barriers to maintain safety and operations.

Assess leaks below the secondary barrier or pinholes at surface or downhole, then implement the contingency plan while prioritizing safety, clearing the area, and notifying the company representative.

Develop a contingency plan for coiled tubing parted at surface or downhole by securing ends, evaluating check valves, and preparing for fishing operations with safety priorities.

Discover how to define coiled tubing as stuck, identify causes and the three-point estimate, and apply up-down cycling, fluid displacement, friction reduction, and safe cutting or disconnect strategies before fishing.

Explain traction and hydraulic runaway of coiled tubing, their consequences, and the control steps: match injector speed, increase traction and stripper pressures, then brake or spool as needed.

Learn to manage power pack failure and reel motor failure in coiled tubing, applying failsafe brakes, injector brake, neutral positions, manual locks, and controlled recovery steps.

Cover contingency plans for crane failure and injector work with coiled tubing inside, detailing three failure categories and required security and repair steps.

Identify coiled tubing collapse indicators such as rising pumping pressure, tension, and stripper leaks, then execute a contingency plan to seal, kill the well, and remove the collapsed segment.