OIL & GAS OPERATOR REPRESENTATIVE (OGOR)

Workover/Intervention Well Control Course Outline

Completion

• Design
• Fracturing
• Drilling plugs

Workover

• Operations
• Mechanical failures
• Reservoir issues
• Possible well control risks
• Risks compared to drilling operations
• Use of gases in fluids

Simulator Practice

• Demonstrate U-tube principles
• Visualize the well as a U-tube

Downhole

• Fluid gradient
• Hydrostatic pressure
• Formation pressure
• Surface pressures
• Bottom hole pressure, the status of well
• Well as a U-tube, fluid density
• Formation characteristics
• Formation damage
• MASP
• MACP
• MAFW

Influx Fundamentals

• Influx fluid types
• Kick detection
• Causes of kicks
• Pump rate to overcome gas migration rate
• Shut-in procedures
• Gas behavior

Barriers

• Barrier types
• Barrier classifications
• Barrier hierarchy
• Barrier envelope

Workover fluids

• Fluid properties
• Testing fluid properties
• Purpose of workover and completion fluids
• Fluid monitoring
• Solids settling
• Contaminants
• Brine characteristics
• Temperature effects
• Saturation point
• Environmental concerns
• Types of fluids

BOPs

• Annular
• Rams
• Locking devices
• Stack configurations
• HCR valves
• Accumulator system
• Driller panel
• BOP failures
• Ring gaskets
• Function tests
• Pressure tests

Simulator Practice

• Demonstrate accumulator system functions
• Remote control panels
• Loss of rig air to bop panel
• Manifolds and backup systems
  

Surface/Subsurface Equipment

• Surface and subsurface equipment
• Production tree
• Closing/opening sequence
• Tree/BOP removal
• Tubing hangers
• Wellhead bowls
• VRPs and BPVs
• Removable wellhead equipment
• Tubing degradation
• Testing downhole equipment

Downhole Complications

• Casing
• Equipment degradation and failure
• Stuck pipe
• Blockages
• Incorrect practices
• Human error
• Trapped pressure
• Fluid complications
• Wellbore communication
• Bacteria
• Gases

Simulator Practice

• Demonstrate the risk of over-displacement
• Bullhead operation simulation
  

Circulating Well Kill Methods

• Downhole communication
• Friction
• Pump pressure
• ECD
• Reverse circulation
• Forward circulation
• Lag time
• Complications during kill

Simulator Practice

• Demonstrate proper pump start-up and shut down procedure
• Reverse circulation simulation
• Interpret pressures on gauges
  

Simulator Practice

• Demonstrate proper pump start-up and shut down procedure
• Forward circulation simulation
• Interpret pressures on gauges
  

Volumetric and Lubricate and Bleed

• Procedures for volumetric method
• Procedures for lubricate and bleed
• Safety margins
• Advantages and disadvantages of methods

Simulator Practice

• Practice volumetric method
• Lubricate and bleed

Stripping

• Importance of using a pressure chart during operation
• Pipe light
• Pipe heavy
• Force relative to area and pressure
• Buoyancy factor
• Operational considerations
  

Simulator Practice

• Demonstrate valve lineups to trip tank
• Stripping operation simulation
  

Well Servicing: Snubbing

• Live well vs. dead well operations
• Types of snubbing units
• Snubbing well control equipment
• Snubbing complications

Well Servicing: Coiled Tubing

• Coiled tubing units
• Coiled tubing well control equipment
• Complications with coiled tubing
• Emergency operations with coiled tubing

Well Servicing: Wireline

• Wireline units
• Wireline operations
• Wireline well control equipment

Unconventional Well Control

• Pill and kill
• Top kill
• Rolling the hole
• Responding to complications during well kill operations

Crew Responsibilities

• Teamwork
• Pre-job planning
• Importance of good handover notes
• Well control drills
• Organizing well control operations
• Locations of documentation
• Emergency response plan
• Roles and responsibilities of the crew during well control
  operations