Online Live Streaming Course
4 Sessions (approx 5 hrs each) : September 2 to 5, 2024
Duration : 20 hours
Level : Intermediate
WHO SHOULD ATTEND:
Well Interventions or Well Services Supervisors, Operations or Field Engineers, Coiled Tubing Supervisors and Operators, Sub-Surface Engineers, Production Engineers, Drilling Engineers, Completion Engineers and those professionals willing to expand their knowledge in Coiled Tubing and Nitrogen interventions planning, design and/or execution.
OBJECTIVES:
Coiled Tubing is one of the most common technologies used for Rigless Well Interventions on a daily basis throughout the oil industry.
This course covers the surface and Pressure Control Equipment, the Bottomhole Assembly Components (downhole tools), the string manufacturing and operational limits, the most common interventions performed with Coiled Tubing and covers the technical concepts regarding string Fatigue.
Nitrogen equipment and calculations for Nitrogen interventions are also covered and an extensive coverage of Emergency Responses and Contingencies.
Technical concepts are enhanced with pictures, videos and numerous real field cases and problems.
BENEFITS:
Participants will gain the knowledge to actively and efficiently participate in Coiled Tubing intervention´s planning, design and/or execution.
CONTENT:
1. Introduction
2. Surface equipment
2.1 Injector head
2.2 Reel
2.3 Power Pack
2.4 Control Cabin
2.5 Tubing Guide
2.6 Support structures
2.7 Rig up considerations
3. Pressure Control Equipment
3.1 Primary PCE (Stripper packer)
3.2 Secondary PCE (Blowout Preventers)
3.3 Tertiary PCE (Shear/Bblind ram)
3.4 Accumulators
3.5 Quick Latch – Connector to BOP
3.6 Quick test sub
3.7 Injection Sub
3.8 PCE according to category (API 16ST)
3.9 Pressure test of each PCE component
4. Bottomhole Assembly Components
4.1 Tubing End Connectors
4.2 Double Flapper Check Valves
4.3 Hydraulic disconnect
4.4 Mechanical disconnect
4.5 Rupture disc
4.6 Circulating valve
4.7 Motorhead Assembly (MHA)
4.8 Centralizer
4.9 Swivel
4.10 Knuckle Joint
4.11 Back Pressure Valve
4.12 Jetting nozzle
4.13 Downhole Motor
4.14 Jars
4.15 Accelerator
5. Coiled Tubing strings
5.1 String manufacturing
5.2 Butt and Bias Welding
5.3 Tapered strings
5.4 Steel grades
5.5 Stretch in CT strings
5.6 Friction pressure in CT strings
6. Operational limits
6.1 Stress and Strain basic principles
6.2 Stresses during job execution
6.3 Mechanical limit – Von Mises criterion
6.4 Safety Factor
6.5 Torsional stress
6.6 Ovality and Collapse resistence
6.7 Buckling and lock-up
6.8 Catastrophic buckling below injector
6.9 Other dimensional deformities
6.10 Coiled Tubing simulators
7. Pumping Operations
7.1 Chemical treatments (Stimulation)
7.2 Well unloading (N2 lifting/Kick off)
7.3 Wellbore cleanouts (Fill removal)
7.4 High Pressure Jetting
7.5 Milling and cutting
7.6 Coiled Tubing Drill out (CTDO)
7.7 Circulation Kill (Killing)
8. Mechanical Operations
8.1 Well Logging
8.2 Fiber Optic Enabled Coiled Tubing (FOECT)
8.3 Perforating
8.4 Shifting Sliding Sleeves
8.5 Mechanical plug/packer setting
8.6 Fishing
9. Life estimation (fatigue)
9.1 Fatigue definition
9.2 Fatigue estimation
9.3 Factors affecting fatigue
9.4 Utilization and Safety Factor
9.5 Fatigue on welds (de-rating factor)
9.6 Fatigue on mechanical imperfections
9.7 String life in Acidizing jobs
9.8 String life in Clean-outs
9.9 String life in pumping operations
9.10 String life in H2S / CO2
9.11 String life during storage
9.12 Fatigue tracking sheet
10. Nitrogen
10.1 Introduction
10.2 Liquid Nitrogen Safety
10.3 Equipment
10.4 Basic calculations with N2
11. Emergency responses and contingencies
11.1 Replacing leaking stripper
11.2 Pin hole leak
11.3 Fractured string
11.4 String parted at surface
11.5 String parted downhole
11.6 Uncontrolled descent (runaway)
11.7 Uncontrolled ascent
11.8 String stuck in the hole
11.9 String stuck in the lubricator
11.10 Leak below well-control stack
11.11 Power Pack failure
11.12 Retrieving CT after shearing with BOP
11.13 Retrieving a collapsed string