An Interactive 5-Day Training Course
Coiled Tubing Drilling
Drilling with Coiled Tubing
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Duration
5 Days
Price
$ 3,500
Starting From
27 Sep 2027
Coiled Tubing Drilling
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Coiled Tubing Drilling - DC-CTD-PEA27
| Code | Date | Time | Duration | Location | Currency | Early Bird Fee Per Person |
|---|---|---|---|---|---|---|
| DC-CTD-PEA27 | 27 Sep - 01 Oct 2027 | 10 AM CST | 4 Hours / Day |
Online |
USD |
3500 |
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Coiled Tubing Drilling
This course covers coiled tubing drilling. Participants study applications and candidate selection, coiled tubing drilling systems and bottomhole assemblies, orientation and directional control, hydraulics and hole cleaning, weight transfer and lock-up, underbalanced coiled tubing drilling, well control, through-tubing re-entry drilling, operations and economics.
Description
Coiled tubing drilling uses continuous pipe instead of jointed drillpipe, with a downhole motor and an orienting tool for direction. It allows drilling under pressure, through existing tubing, with a small footprint and without connections, which suits re-entry drilling, underbalanced applications and shallow or slim hole wells.
This course covers the method and its application. It starts with applications and candidate selection, then covers coiled tubing drilling systems: the surface spread, injector, pressure control equipment, bottomhole assemblies, motors, orienting tools and measurement systems. It covers directional control and its limits, hydraulics and hole cleaning through small bore pipe, weight transfer, buckling and lock-up, which define how far the system can drill. It then covers underbalanced coiled tubing drilling and its benefits, well control and pressure containment, through-tubing re-entry drilling in existing wells, and the operations, performance and economics that determine where the method competes.
The attraction is drilling without connections and under pressure. With no connections, drilling is continuous and underbalanced conditions can be maintained throughout, which avoids formation damage and allows the well to flow while drilling. Through existing tubing, a slim lateral can be drilled from a producing well without pulling the completion.
The limitation is weight transfer. Coiled tubing cannot be rotated, so it slides, and friction accumulates until the pipe buckles helically and locks up. That sets a practical reach that is far shorter than conventional drilling, and extending it requires friction reducers, tractors, thrusters or smaller hole sizes.
Hole cleaning through small bore pipe is the other constraint. Pump rates are limited by friction pressure in the coil, and in horizontal sections without rotation the only cleaning mechanism is annular velocity, so cuttings beds form readily. Both constraints mean coiled tubing drilling occupies a niche rather than replacing conventional drilling.
By the end of this training, participants will be able to:
- Identify coiled tubing drilling applications and select candidates.
- Describe coiled tubing drilling systems and surface equipment.
- Specify bottomhole assemblies, motors and orienting tools.
- Apply directional control methods and understand their limits.
- Calculate hydraulics and assess hole cleaning in small bore systems.
- Analyse weight transfer, buckling and lock-up and predict reach.
- Plan underbalanced coiled tubing drilling operations.
- Apply well control and pressure containment requirements.
- Plan through-tubing re-entry drilling in existing wells.
- Assess performance, cost and the economic case for coiled tubing drilling.
The course is instructor-led. Systems and equipment are covered with schematics and specifications, and reach, hydraulics and hole cleaning with calculations. Participants plan coiled tubing drilling operations for given wells, including re-entry cases. Field experience and project cases are examined. Participants are encouraged to bring their own candidate wells for discussion.
Organisations sending participants to this training will:
- Apply coiled tubing drilling where it adds value over conventional methods.
- Access new reserves from existing wells through re-entry drilling.
- Reduce formation damage through underbalanced drilling.
- Assess candidates realistically against reach and cleaning limits.
- Build competence in a specialised but valuable technique.
Participants will:
- Understand coiled tubing drilling systems and their limits.
- Be able to select candidates and plan operations.
- Be able to calculate reach, hydraulics and hole cleaning.
- Understand well control in coiled tubing drilling.
- Be able to assess the economics against conventional drilling.
- Drilling and well engineers
- Well intervention engineers
- Coiled tubing service company engineers
- Production engineers considering re-entry drilling
- Rig site and coiled tubing supervisors
- Technical staff assessing new drilling methods
Module 1: Applications and Candidate Selection
- Where coiled tubing drilling competes
- Re-entry and through-tubing applications
- Underbalanced applications
- Shallow and slim hole wells
- Screening criteria
Module 2: Systems and Surface Equipment
- Coiled tubing unit and injector
- Reel and string specifications
- Pressure control equipment
- Surface circulating and separation equipment
- Spread layout and footprint
Module 3: Bottomhole Assemblies
- Motors for coiled tubing drilling
- Orienting tools
- Measurement and telemetry systems
- Bits for small hole sizes
- Connectors and disconnects
Module 4: Directional Control
- Orientation without rotation
- Build rate capability
- Trajectory control limits
- Survey and steering practice
- Correcting trajectory
Module 5: Hydraulics and Hole Cleaning
- Friction pressure in coiled tubing
- Pump rate limits
- Annular velocity and cleaning without rotation
- Fluid selection
- Cuttings bed management
Module 6: Weight Transfer and Reach
- Buckling and lock-up
- Reach prediction
- Friction reducers and lubricants
- Tractors and thrusters
- Hole size and reach trade-offs
Module 7: Underbalanced Operations
- Underbalanced coiled tubing drilling benefits
- Nitrogen and lightweight fluid systems
- Maintaining underbalance continuously
- Surface separation and flaring
- Reservoir evaluation while drilling
Module 8: Well Control
- Pressure containment during drilling
- Shut-in procedures
- Downhole deployment valves
- Emergency disconnect
- Procedures and drills
Module 9: Operations, Performance and Economics
- Operational sequence and crew requirements
- String fatigue management
- Performance and rate of penetration expectations
- Cost comparison with conventional drilling
- Project case studies
Upon successful completion of this training course, delegates will be awarded an official Certificate of Completion issued by the Petroleum Engineers Association (PEA), an ISO 9001:2015 certified training organization. The certificate carries 10 Credits and formally records the total learning hours completed.
Each certificate is signed by the Course Facilitator and the CEO of the Petroleum Engineers Association, and serves as verifiable proof of professional training that delegates can present to employers and professional bodies worldwide.
Frequently Asked Questions
All course bookings made through PEA are strictly non-refundable. By registering for a course, you acknowledge and accept that all fees are payable in full and are not subject to refund under any circumstances, including changes in personal or professional commitments or partial attendance.
PEA reserves the right to make reasonable adjustments to course content, trainers, or schedules where necessary, without entitling delegates to a refund. Comprehensive details of each course — including objectives, target audience, and content — are clearly outlined before enrolment, and it is the responsibility of the delegate to ensure the course's suitability prior to booking.
For any inquiries related to cancellations or bookings, please contact our support team, who will be happy to assist you.
