In accordance to the Norwegian Petroleum Authority Curriculum
08:00 Registration
08:30 Morning session begins
10:00 Refreshment and networking break
10:30 Morning session continues
12:00 Lunch
13:00 Afternoon session begins
14:30 Refreshment and networking break
15.00 Afternoon session continues
16:30 End of day
Daily Schedule
Day One
Roles and Responsibilities for Well Integrity
Who monitors/who do they report to/who fixes? Who ‘manages’ the Well Integrity-WI System?
- Introduction, magnitude of Well Integrity Problems, Areas of treat for managing Well Integrity
- Well Integrity Process flow, checks and balances and Roles and Responsibilities in the
organization
- WI Activity management model
- Preventive maintenance reduces operating cost
- Class exercise on Preventive maintenance on Well Heads
- Case study: Macondo Well Blowout in the GOM; investigative study and recomendations of the
incident
- Class exercise on the Macondo Incident’s root cause
Basic Wellbore Physics
Discussion of formations/pressures/overbalance/underbalance/temperature increases when wells flow etc.
- The effects of pressure and temperature on well completions strings
- Effects on completions of pressures, change from over to under pressure, temperature effects
- Sintef Injection study and completion design inputs
Basic Well Construction with Emphasis on Barriers
Description of minimum barrier requirements with the provision of a typical Well Bore
Schematic. Discuss tubing burst / collapse etc. Discuss SCSSVs / ASVs / Xmas trees / tubing.
Schematics, incl.
- Fundamentals of Well Integrity: Well completion string design, safety criteria and load cases
- Understanding of Barriers and Well Barrrier Elements in wells
- Internal corrosion; Co2 and H2S effects
Class exercise on Well Barrier understanding
Exercise to review learning of day one
Completions design and functional specifications or accessories
Importance of Well Bore Schematics in changed status of the well: from drilling to completion to production and back to intervention
Class exercise on Completion design
Class exercise on WBS in changed status of the well
Basic Well Control Requirements
Using case studies the Class discusses hydrates / sand / corrosion - erosion / Well Intervention
Ops etc. Well start up/shut down.
- Using IWCF examples and questions
Well Integrity Hazards
Using case studies the Class discusses Well Intervention Operations and effects on completions.
Well start up/shut down.
- Annulus Monitoring and importance of reporting/trending
- Discussion of operating and design limits (pressure, temperature, flowrates etc). Describe and
provide typical Annulus Monitoring Spreadsheet
- Discussion of annulus leak rate and other acceptance criteria
- Discussion risk resulting from annulus leaks
Exercise on internal corrosion
Case study on external corrosion and collapse of conductor casing
The requirement of grouting the riser on offshore wells
Exercise on finding solution for none grouted wells preventing corrosion
Exercise on making a Well Integrity verification program and repair options
Exercise to review learning of day two
Case study on loss of Well Control and exercise on consequences
Annulus Bleed-Down
- Discussion on what should be reported and the reasons for bleed-down during production.
- Discussion of the sources of tubing to annulus communications - eg; pipe / cement etc.
- Living with Sustained Annulus pressure.
Exercise on Annulus pressure.
Exercise on Well Intervention dangers wrt Well Integrity
Wellhead Maintenance Activities
Discussion of the importance of regular and adequate well maintenance.
SCSSSV Testing - discuss frequency/acceptance criteria/functionality/control line integrity/repeat tests.
Xmas Tree Valve Testing - discuss functionality/acceptance criteria.
Void Monitoring – discussion of the implications for hydrocarbons in voids/repair methods Monitoring
equipment, accuracy and maintenance.
Maintenance process
Technology and tools for Well Integrity diagnostics and monitoring
- Leaking water injector and subsequent decision on the well from an integrity risk point of view.
Exercise to review learning of day three
Case history on consequences of failure to monitor well integrity
Critical design-changes in the life of a well affecting Well Integrity, its prevention and solutions
Exercise on real case Emergency Control Room event around loss well well control
Failure Modes And Effects Analyses FMAE, developing the document
Formulating a Well Failure Model WFM document; the process and the need for it
Handover of Wells
- Necessity to ensure accurate and timely reporting.
- Discussion of the information required and who gets it. An example Well Handover Documentation
will be discussed and provided.
Documentation
Discussion of the need for keeping good well integrity records.
Discussion and description of the need for non-conformance system for operating wells not in
accordance with the 'Standard'.
Risked based Well Maintenance frequency understanding
Demo of real Well Integrity Management System-WIMS software
Exam for a Well Integrity Competent Certificate
Case studies:
- Macondo blowout, Montara blowout with official review team analyses discussed and anlalysed
- Catastrophic failure of outer casing
- Effect of one blowout on a platform to other surrounding wells
- Consequence of incorrect Procurement policy and its effect on drilling a well
- Blowout on land of effluent via the outside of the well structure
Documents needed to Manage Well Integrity: (real case samples discussed and handed-out)
- Handover Sheet
- Failure modes and effects analyses (FMAE)
- Well Failure Model (WFM)
- Combined Operations and Well Intervention check sheet