This course is designed to provide an up-to-date overview of x-mas tree, wellhead equipment, mechanical barriers, safety valves and wellhead control system. Attendees will develop a better understanding of wellhead operating procedures and working under safe conditions.
Upon the successful completion of this course, each participant will be able to:-
- Apply and gain an in-depth knowledge on x-mas tree & wellhead operations & testing
- Discuss the various wellhead equipment as well as x-mas tree, tubing hanger, production packers & landing nipples
- Practice barriers principles & well safety on hydraulic barriers and mechanical barriers as well as subsurface control valve, packer setting and testing
- Demonstrate flanging of the wellhead, wellhead safety valves and control system
- Employ the proper operating procedures of x-mas tree and wellhead operations to work under safe conditions
- Understand the basic subsea drilling process
- Understand well Annulus and Production communication
- Know key differences/similarities in Xmas tree design
- Have a basic understanding of Pipe and Instrument Diagrams
- Know Safety Critical valves
- Appreciate different API Subsea Standards
- Appreciate subsea End connections
This course in intended for field operations, production, petroleum, reservoir and field engineers and other staff interested in X-mas trees & wellhead operations and testing
- X Tree main Components & Functions
- Tubing Head Adaptor
- Master Valve (Flow line valve)
- Wing Valve (Flow line valve)
- Tee
- Choke
- Swab or Crown Valve (Flow line valve)
- Top Connection
- Gauge Valve / Cap Valve
- Single / Dual /X-mastree
2. Specification & X-mass Tree Equipment (American Petroleum Institute –API)
- Wellhead Equipment
- Connectors & Fittings
- Casing and Tubing Hangers
- Valves & Chokes
- Loose Connectors
- Actuators & Ring gaskets
- Functional Test Data
3. Wellheads
- Casing Heads
- Casing Spools
- Casing Hangers
- Packoff and Isolation seals
- Bowel Protectors
- Test Plugs
- Mudline Suspension Systems
- Tubing Heads
- Tubing Hangers and Tubing Head Adapters
- Testing procedures of wellheads
- Well Test Equipment
- Well test tools
- Principles of well testing
- Pressure drawdown testing
- Pressure build up testing
- Drill stem testing
- Test design and instrumentation
- Safety and precaution in drill
5. Piping & Associated Equipment
- Introduction to piping systems & materials
- Hazards Associated
- P & I diagrams reading & interpretation
- Petroleum Gas Systems
- Gas Gathering Systems
- Main Line (Pipeline) Transmission Lines
- Water hammer in pipelines
- Gas Distribution Systems
- Location Classes for Design
- Blowdown Assemblies
- Pipe Codes and Standards
- Loops, bellows, vents, drains
- Wireline Operations
- Data needed for wireline operations
- Wireline surface equipment
- Wireline BOP’s
- Types of wirelines
- Wireline integrity management
- Tool string components
- Work practice and safety operations
- Surface Safety Valves, SSVs
- Valve Location
- Applicable Valve and Actuator Types
- Materials for Christmas Tree Safety Systems
- Protruding Stem on SSVs
- Selection
- Hydraulic Actuators
- Service Equipment
- Subsurface Safety Valves, SSSVs
- Tubing Retrievable Valves
- Wire line Retrievable Valves
- Valve Type
- Single Control Line vs Balance Line
- Advantages vs Disadvantages of Deeper Setting
- Surface Control System
- Power and Power Fluid
- Sensors
10. Flow Line Control
- Introduction to Flow Control and the Well Head
- Gate Valves
- Production Chocks
- Christmas Tree Assemblies
- Low Pressure installation (Example)
- High Pressure Installation (Example)
- Flanges and Clamps
- Independent Well Heads
- Utilized well heads
- Wellhead Systems and Operations
- Conventional Wellhead equipment
- Completion Wellhead Systems
- Wellheads and Valves
- Leak detection
- Methods of Detecting a Leak.
- Leak Detection Instruments.
- Description of Leak Detection Equipment
- Recommended Method for Surface Gas Detection Survey with FI Unit.
- Odorants
- Follow-up Inspection.
- Leak Classification and Action Criteria.

