In the development of a hydrocarbon reservoir, many wells are drilled and required to be completed, to allow the structure to be depleted. However, the drilling and completion operations are crucial to the long-term viability of the wells in meeting the specified objectives. The design and completion of both production and injection wells are required to satisfy several objectives including:
- Provision of optimum production/injection performance
- Ensure safety
- Maximize the integrity and reliability of the completion over the envisaged life of the completed well
- Minimize the total costs per unit volume of fluid produced or injected, i.e.
- Minimize the costs of initial completion, maintaining production and remedial
This training course will feature:
- The main functions of completion
- Developing a high-level completion strategy for wells in a variety of situations
- Select tubing, packers, and completion flow control equipment
- Understand different sand control techniques and their application
By the end of this training course, participants will be able to:
- Evaluate for a given reservoir scenario the bottom hole completion options and make a recommendation based on well integrity and reservoir management requirements
- Identify, evaluate and recommend functional capability of completion strings for a variety of situations
- Describe the purpose and generic operating principles for major completion equipment components
- Identify limitation of well completion schematically designs and potential failure mechanisms/operational problems with equipment
- Assess well safety requirements and capabilities inherent in well design
- Describe the integration of the various stages of completing a well
- List and flow chart a general procedure to run a completion string
- Describe the requirements to pressure test and retain well control throughout the completion process
- Define the need for full and accurate reporting and records to be kept
DAY 1
WELL COMPLETION DESIGN, PRACTICES AND STRATEGIES
- Introduction of Reservoir Drive Mechanism
- Introduction into Artificial lift methods and their application
- IPR and Productivity Index
- Vertical Lift Performance
- Well Outflow and Inflow Systems
- Typical Vertical Lift Performance (VLP) for various Tubing Sizes
- Matching VLP curves with an IPR curve
- Well Completion Design Considerations
- Reservoir Considerations
- Mechanical Considerations
- Classification of Completions
DAY 2
LOWER & UPPER COMPLETION STRING COMPONENTS & SELECTION CONSIDERATION
- Production Packer functions
- Packers Types
- Packers Generic Mechanisms
- Permanent and Retrievable Packers
- Locator Seals and Anchor Seals
- Applications for Permanent and for Retrievable Packers
- Setting Packers
- Inflatable Packer applications
- Sliding side door function
- Gas lift mandrel
- Running the completion
- Perforation methods and perforating equipment
- Perforation selection and conveying methods
DAY 3
WELLHEADS/SUB-SURFACE SAFETY VALVES & FLOW CONTROL EQUIPMENT
- Wellheads components, function and types
- Subsurface safety valves function
- Safety valves types
- Setting depth of subsurface safety valves consideration
- Surface control subsurface safety valves
- Flow control devices
- Nipple profiles types and plug selection
- Workover reasons
- Well killing operations technique and consideration
- Example for workover operations (Gas lift wells, Natural gas well, ESP well )
DAY 4
OVERVIEW OF SAND CONTROL COMPLETION
- Sandstone Formation Properties and Geology
- What causes Sand Production?
- Consequences of sand production downhole and on surface
- What is the mean of sand control?
- Perforation system for non-sand control completion
- Sand control options
- Chemical Consolidation
- Mechanical sand control methods
- Cased Hole Gravel Pack
- Open Hole Gravel Packing
- Expandable Screens
- Gravel Pack Design, Gravel Sizing and Slot Sizing
- Placement Methods
- Carrier Fluid Concept
- Choosing the appropriate method of Sand Control
- Losses controlling during sand control operations
- Perforating system for sand control
- Standalone screen applications
DAY 5
FUNDAMENTALS OF RIGLESS OPERATIONS THEORY & STIMULATION
- Coiled Tubing surface and subsurface components
- Coiled Tubing applications
- Cleaning operations with CT
- Well back flow (nitrogen lift)
- Wireline types and application
- Surface and subsurface components of wireline
- Formation damage mechanisms and their remediation
- Stimulation design considerations
- The most important production logging (PLT)
- Well barrier philosophy during well interventions
By the end of this training course, participants will be able to:
- Evaluate for a given reservoir scenario the bottom hole completion options and make a recommendation based on well integrity and reservoir management requirements
- Identify, evaluate and recommend functional capability of completion strings for a variety of situations
- Describe the purpose and generic operating principles for major completion equipment components
- Identify limitation of well completion schematically designs and potential failure mechanisms/operational problems with equipment
- Assess well safety requirements and capabilities inherent in well design
- Describe the integration of the various stages of completing a well
- List and flow chart a general procedure to run a completion string
- Describe the requirements to pressure test and retain well control throughout the completion process
- Define the need for full and accurate reporting and records to be kept