Oil & Gas and Petroleum
Wellhead Maintenance and Operations
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Wellhead Maintenance and Operations Course
Introduction:
Xmas Trees and Well Heads are critical parts of any Oil & Gas Well. They control the pressures in the Casings and Production Tubing, regulate the production rates and are very important barriers in case of leaks.
Course Objectives:
By the end of this training course, participants will be able to:
- Develop the knowledge relationship between the surface (Well Heads) and downhole.
- Investigate leaks and identify the cause of the leak
- Determine Tubing pressures (based on the depth of perfs, the density of fluid and BHFP).
- Investigate SAP pressures based on well pressure monitoring using 2 and 3 pen recorders.
- Explain the influence of corrosion models on MAASP pressures and on Well Life Cycle
Who Should Attend?
This training course is suitable for a wide range of professionals but will greatly benefit:
- Field Services Foremen
- Operations Foremen
- Petroleum Engineers
- Production Engineers
- Drilling Engineers
- Completion Engineers
- Oil Field Technical Staff
Course Outlines:
Introduction – Well Heads and Xmas 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
- Well Head Installation movie
- Casing Head / Casing Head Function
- Investigation and Discussion of SAP Case 1
Continuation of Well Head Components
- Casing Spool / Casing Spool function
- Casing Hangers
- Tubing Heads and Tubing Hangers
- Investigation and Discussion of SAP Case 2.
- Continuation of tubing hangers
- Tubing Head Adapters
- Typical Xmas Tree Components.
- Fix Chokes and Adjustable Chokes
- Flanges (6B and 6BX types)
- Seals and gaskets
- Unitized Well Head
- The BOP
Xmas Tree Installation, Pressure Testing
- Xmas Tree Installation
- Well Head Repairs
- Hydraulic and Pneumatic Actuators
- Investigation and discussion of SAP Case 3
- Casing Hangers and Well Pressure Control
- Common Pack Offs and Secondary Seals
- Tubing Hangers (cross sections)
- Tests and Leak Path Determination
- Unitized 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 and 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 (Sustainable Annulus Pressures) Wells
- Investigation and discussion of SAP Case 4
