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COILED TUBING APPLICATIONS
Coiled tubing (CT) has many applications in the petroleum industry, which include drilling (CT drilling), cementing, wellbore cleanout, acidizing, and hydraulic fracturing. In contrast, the excessive friction pressure loss, due to the relatively small tubing diameter and tubing curvature (which is believed to cause secondary flow) of CT, often limits the maximum obtainable fluid injection rates. Therefore, it is of practical importance to investigate the flow regularity and friction properties in CT.
DURATION: 5 days
LEVEL: Foundation to Skill
DESIGNED FOR YOU, IF YOU ARE...
This course is designed for engineers, senior operations personnel, and company representatives with
zero-to-intermediate well intervention knowledge who are assigned to evaluate, plan, and/or execute
coiled tubing, slickline, or wireline interventions.
HOW WE BUILD YOUR CONFIDENCE
We will use slides presentation, paper exercises and examples from real cases.
Group discussion and experience exchange.
THE BENEFITS FROM ATTENDING
The organization will gain, in sending their employees to attend this training course, the following:
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Reduction in the cost of the well by proper selection of CT operation
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Extending the well life and control it, achieve the optimum production using coiled tubing operation instead of normal rig operations
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Ensuring the well integrity and avoiding all risks during Rigless operations.
By the end of the course, you will feel confident in your understanding:
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Introduction to the variable nature of coiled tubing.
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Describe the inherent risks and need for careful diagnostics, planning and supervision.
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Know the well control barrier principles during a coiled tubing operation.
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Identify three barriers methodology during coiled tubing operation.
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Know well control barrier classification for different type of coiled tubing method.
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Describe the mechanisms of a coiled tubing operation.
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List and describe the commonly used downhole coiled tubing equipment and tools.
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List and describe the surface coiled tubing equipment requirements; lubricator; BOP; stripper.
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Describe well pressure control and safety issues associated with coiled tubing.
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State the limitations on successful coiled tubing operation imposed by depth, hole angle and dog leg severity
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Learn procedures and equipment used in coiled tubing operation.
DAILY AGENDA
Day 1
General
1.Coiled tubing technology historical improvement
2.CT package components
3.CT operational procedures and limitations
4.CT well control principles
5.CT troubleshooting procedures
Four range of applications of Coiled Tubing (CT) have been identified:
1.Pumping services; hydraulic applications that involve circulation of fluids.
2.Work-string applications; mechanical services that involve the downhole conveyance of required tools or equipment.
3.Stiff wireline applications; electrical services that employ downhole tools which are powered by or transmit through an electrical cable.
4.Completions; permanent applications with coiled tubing installed either as the producing conduit or part of it for flow control or other requirements (e.g. ESP conveyance).
Day 2
Pumping services
1.Fluid displacement (nitrogen lifting)
2.Reservoir/well improvement (acid washing/stimulation)
ØAcid washing
ØAcid stimulation (matrix acidizing)
3.Fill cleanouts (sand removal/pressure jetting)
ØHigh pressure jetting
4.Remedial/abandonment (sand consolidation/cementing)
ØChemical sand consolidation
ØCementing
Day 3
Work string
1.Drilling/milling
2.Underreaming (within cased hole)
3.Fishing
4.Coiled tubing slickline operations
Day 4
Stiff wireline
1.Logging
2.Perforating
3.Downhole video camera
Day 5
Completions
1.Production and velocity strings
2.Production strings
3.Injection strings
4.Tubing patches
Study cases
Discussion
Exam and assessment
Course can be delivered
Online or, either in Class room in Client´s permisses or in Algarve Portugal