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X-mas Tree & Wellhead Operation & Testing (PRE26)


    Well heads and X-mas trees are a very important and critical component of any well.
    To monitor, test and repair any failed component is critical for the safe operation of the well, will boost production and keep the well out of the ‘inactive wells’ list.

    Course Level: Skill
    Instructor: Antonio Abreu

    Designed for you, if you are...

    • A field services or operations foreman
    • A petroleum or production engineer
    • A drilling or completion engineer
    • Oil field technical staff

    How we build your confidence

    • Instructor-led delivery focusing both on theoretical concepts and practical onsite experience
    • Videos and case studies
    • Real SAP cases will be monitored and evaluated
    • Exercises

    The benefits from attending

    By the end of the course you will feel confident in your understanding of:

    • The relationship between surface (Well Heads) and downhole
    • How to investigate leaks and identify causes of leaks
    • How to investigate SAP pressures based on well pressure monitoring using 2 and 3 pen recorders
    • The operation of valves, actuators, control panels and other safety mechanisms to control the well


    Introduction: Well Heads and X-mas Trees
    • Operational safety
    • Reservoirs, wells and well heads
    • Problems caused by poor cement jobs
    • Well construction and primary cement jobs
    • Construction of a well from casings to well head
    • Productivity index calculated at well head
    • Well head main functions
    • Practical calculations to determine tubing pressures based on several factors
    • Well head classifications
    • API specification 6A
    • Basic components of a well head
    • Casing head / casing head function
    • Casing spool / casing spool function
    • Casing hangers
    • Tubing heads and tubing hangers
    • Tubing head adapters
    • Typical X-mas tree components
    • Fix chokes and adjustable chokes
    • Flanges (6B and 6BX types)
    • Seals and gaskets
    • Unitised well head
    • The BOP

    X-mas Tree Installation, Pressure Testing
    • X-mas tree installation
    • Well head repairs
    • Hydraulic and pneumatic actuators
    • Casing hangers and well pressure control
    • Common pack offs and secondary seals
    • Tubing hangers (cross sections)
    • Tests and leak path determination
    • Unitised well heads
    • Basic rules for pressure testing well heads
    • Test schematics of well heads
    • Movie: testing well head
    • Example of sealing cavity with sealant
    • Basic requirements of a well completion
    • Casing string types
    • Liners, liner hangers and tie back liners
    • Effects of pressure in “b” and “c” annulus

    Well Head Repairs, Well Integrity
    • Well head repairs and casing repairs
    • Surface casing corrosion
    • Burst and collapse pressure decline with time
    • MAASP calculations for annulus A
    • Short introduction on material selection
    • Corrosion monitoring tools
    • Cathodic protection
    • Well integrity: safety and operational aspects
    • Constructing a well with integrity
    • Well integrity issues
    • The important of SC-SSSV
    • Well head components and well integrity assurance guidelines
    • Risk management
    • WIMS: well integrity management system
    • Industry standards and guidelines
    • Well integrity drivers and implementation
    • Well integrity envelope
    • Well integrity, annular pressures and well head monitoring
    • SAP wells

    Customer Feedback

    "Excellent material hand book, can be used as quick reference guide at work." - Operation foreman at ADCO
    "Course and tutor skills are excellent." - Operation Foreman at ADCO
    "This course should be a refresher every year for everyone." - Field Services F/M at ADCO
    "Subject and presentation, the whole course was interesting due to matching with my job." - Foreman at ADCO




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