Xmas Trees and Well Heads

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.

This 4-day intensive GLOMACS Xmas Trees and Well Heads training course will highlight:

• All components of a Well Head and of a Xmas Tree and installation sequence
• Investigation, mitigation and cure of SAP Pressures
• Casing and Tubing Seals (monitoring and leak repairs)
• Different Causes of SAP Pressures
• Hazards originated by faulty wellheads (and their mitigation)

The main goals of this GLOMACS Xmas Trees and Well Heads training course is to (1) revisit the importance of Well Heads and Xmas Trees and analyze all the problems that may affect well head and Xmas Trees integrity and well integrity as a whole; (2) To understand how critical are good Cementations to avoid future well Heads and well Integrity Problems; and (3) To understand SAP Pressures, their origin and their impact on Safety and Well Life Cycle.

By the end of this GLOMACS training course, participants will learn to:

• Develop the knowledge relationship between surface (Well Heads) and downhole
• Investigate leaks and identify cause of leak
• Determine Tubing pressures (based on depth of perfs, density of fluid and BHFP)
• Investigate SAP pressures based on well pressure monitoring using 2 and 3 pen recorders
• Explain influence of corrosion models on MAASP pressures and on Well Life Cycle

This GLOMACS Xmas Trees and Well Heads training course will be presented using properly designed slides, some with animation and several videos on relevant issues. A printed manual containing all the slides and/or electronic form in PDF will be delivered to each attendant. Teaching methods include also calculations on related issues.

This GLOMACS training course is suitable to 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

DAY 1

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

DAY 2 

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

DAY 3

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

DAY 4

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

In Association With

PetroKnowledge

Our collaboration with Petroknowledge aims to provide the best training services and benefits for our valued clients

© 2023. Material published by GLOMACS shown here is copyrighted.
All rights reserved. Any unauthorized copying, distribution, use, dissemination, downloading, storing (in any medium), transmission, reproduction or reliance in whole or any part of this course outline is prohibited and will constitute an infringement of copyright.

P.O. Box 74653, Dubai, United Arab Emirates
Tel : +971 - 04 - 425 0700, Fax : +971 (04) 425 0701, Email : info@glomacs.com