WORKOVER

Formerly WellCap Workover, this WellSharp® course is designed for individuals primarily responsible for workover operational processes of well control.

5 Days

Mode Type Level Course Length
WellSharp IADC Drilling Supervisor 5 Days

Workover/Well Servicing Operations

Formerly WellCap Workover, this WellSharp® course is designed for individuals primarily responsible for workover operational processes of well control.

Workover Course Outline IADC WellCAP

Orientation

  • Rapid Fire Competition
  • Case History Stages
  • Well Control Training Approach
  • Situational Awareness

Completion & Workover

  • Completion Design
  • Workover
  • Mechanical Failure
  • Clean Out and Workover Operations
  • Features of Workover
  • Workover Operations
  • Well Control: Drilling vs. Workover

Pressure Basics

  • Hydrostatic Pressure
  • Understanding Depths
  • Bottomhole Hydrostatic Pressure
  • Formation Pressure
  • Relationship Between BHP and FP
  • Sucker Rod Pump Retrieval
  • Rod Pump Retrieval: A Quick Turnaround
  • Rod String Retrieval
  • Casing, Packer or Tubing Leaks
  • Formation Damage/Low Permeability
  • Countering Liquid Hold Up or Gas Slip
  • Excess Water/Gas Production
  • Controlling Sand and Other Fill/Debris

Barriers

  • Barrier Classification
  • Barriers: Production Tree
  • Production Tree
  • Subsurface Safety Valves (SSSVs)
  • Operating the Simulator: Choke Console
  • Operating the Simulator: Drillers Console
  • Well Control Safety Meeting
  • Pressure Bleed-Down Exercise
  • Drawing Conclusions

The Bullhead Method

  • Calculate Fluid Gradient
  • Calculating Hydrostatic Pressure
  • Calculating Kill Weight Fluid
  • Calculating Formation Pressure
  • Fluids
  • Water-Based Fluids
  • Calculating Volume for Bullheading
  • Calculating Strokes for Bullheading
  • Backpressure
  • Calculating Volume on Backside
  • Calculating Tank Volume
  • Plotting the Kill
  • Bullheading Breakover
  • Graph Paper
  • Pressure Limits & the Killsheet
  • Well Control Safety Meeting
  • Bullhead Exercise
  • Drawing Conclusions

Bullhead Killsheet

  • Preparing for the Killsheet
  • Well Control Safety Meeting
  • Bullhead w/ Killsheet Exercise
  • Drawing Conclusions

Downhole Complications

  • Packers
  • Permanent Packers
  • Retrievable Packers
  • Well Control Safety Meeting
  • Identifying Complications Exercise
  • Drawing Conclusions
  • Unconventional Well Control Techniques

Reverse Circulation

  • The Well as a U-Tube
  • Circulating Pressures
  • Circulation and Bottomhole Pressure
  • ECD
  • Downhole Communication
  • Reverse Circulation Method
  • Well Control Safety Meeting
  • Reverse Circulation Exercise
  • Drawing Conclusions

Influxes

  • Causes of Influxes
  • Understanding Warning Signs
  • Warning Signs
  • Consequences of Not Responding
  • Blowout
  • Reacting to an Influx
  • BOPs: Annular and Rams
  • Accumulators
  • Full Opening Safety Valve (FOSV)
  • Well Control Safety Meeting
  • Reverse Circulation 2 Exercise
  • Drawing Conclusions

Forward Circulation

  • Choke Adjustments and Lag Time
  • Well Control Safety Meeting
  • Forward Circulation Exercise
  • Drawing Conclusions

Lubricate & Bleed Well Control Method

  • Lubricate & Bleed Method
  • Well Control Safety Meeting
  • Lube & Bleed Exercise
  • Drawing Conclusions

End-Of-The-Day Considerations

  • Force and Area
  • Buoyancy Factor

Practical Applications: Multiple Wells with Influxes

  • Review
  • Well Control Safety Meeting
  • Multiple Influx Exercise
  • Drawing Conclusions

Complications

  • Stuck Pipe: Packoff
  • Stuck Pipe: Mechanical
  • Industry Practices
    − Barriers
    − Accumulators
    − Function Tests
    − Pressure Tests
    − BOP Tests

Coiled Tubing

  • CT Operations
  • Washing Sand and/or Fill
  • Tubing ScaleRemoval
  • Remedial Cement
  • Drilling Plugs
  • Thru-Tubing Fishing
  • Setting/Retrieving BridgePlugs
  • Reservoir Stimulation
  • Siphon String Installation
  • Formation and Drilling Data Acquisition
  • Perforating With Coiled Tubing
  • Other Coiled TubingOperations
  • Various Coiled TubingUnits
  • Path of Coiled TubingDownhole
  • Coiled TubingReels
  • Reel Drum
  • Gooseneck
  • Gooseneck or Tubing GuideArch
  • Tension
  • Tubing Injector Head
  • Inside Tensioners
  • Stripper Assembly (orABOP)
  • Strippers
  • Ram BOPs
  • Stacks
  • Causes of CT failure
  • Pitting, Tension, Buckling, Abrasions
  • Injector Induced Damages
  • Ballooning, Necking, Ovality
  • Reel Log
  • Emergency Response

Snubbing

  • Equipment Selection Considerations
  • Snubbing vs Stripping