Advanced Drilling Well Integrity Training Course

1. Introduction to Well Integrity

1.1 Well Integrity Fundamentals

• Definition and importance of well integrity including (personnel safety, environmental protection, asset integrity)

• Lifecycle approach to well integrity including (design, construction, operation, intervention, abandonment)

• Industry standards and regulations including (local regulations, international standards, company policies)

• Well integrity failures including (case studies, common causes, consequences)

• Introduction to NORSOK D-010 and API RP 90 for well integrity management

1.2 Barrier Philosophy

• Primary and secondary barrier concepts including (envelope concept, independence requirements)

• Well barrier elements including (mechanical, hydraulic, operational barriers)

• Barrier acceptance criteria including (design validation, verification methods, documentation)

• Barrier verification including (testing methods, monitoring techniques, inspection procedures)

• Barrier management including (maintenance, degradation monitoring, contingency planning)

2. Well Design for Integrity

2.1 Casing Design Principles

• Design considerations including (load cases, safety factors, material selection)

• Burst design including (maximum anticipated surface pressure, gas migration, temperature effects)

• Collapse design including (external pressures, mud weight, cementing pressures)

• Tension design including (self-weight, buoyancy effects, thermal expansion)

• Combined loading including (triaxial analysis, connection performance, material limitations)

2.2 Wellhead and Christmas Tree Selection

• Pressure rating selection including (design pressure, temperature considerations, material class)

• Connection systems including (flanged, hubbed, other connection types)

• Seal systems including (metal-to-metal, elastomeric, hybrid designs)

• Testing requirements including (factory tests, installation tests, periodic testing)

• Monitoring provisions including (pressure monitoring, leak detection, condition-based monitoring)

3. Cementing for Well Integrity

3.1 Cement as a Barrier

• Barrier requirements including (zonal isolation, casing support, pressure containment)

• Slurry design including (density control, thickening time, fluid loss control)

• Mechanical properties including (compressive strength, tensile strength, elastic properties)

• Placement considerations including (centralization, mud removal, standoff)

• Long-term integrity including (chemical stability, thermal cycling, stress cycling)

3.2 Cement Evaluation Techniques

• Cement bond logging including (conventional CBL, ultrasonic tools, interpretation)

• Pressure testing including (positive tests, negative tests, interpretation)

• Temperature logging including (cement hydration monitoring, top of cement detection)

• Advanced evaluation techniques including (acoustic imaging, fiber optic sensing)

• Remedial cementing including (squeeze cementing, chemical sealants, mechanical isolation)

4. Well Barrier Elements

4.1 Mechanical Barrier Elements

• Casing and tubing including (connections, material selection, corrosion allowance)

• Wellhead systems including (housing, hangers, sealing mechanisms)

• Downhole safety valves including (control systems, qualification, testing)

• Packers and bridge plugs including (setting mechanisms, retrievability, seal systems)

• Cement including (placement verification, integrity verification, remediation)

4.2 Operational Barrier Elements

• Drilling fluid including (hydrostatic pressure, properties maintenance, monitoring)

• BOP systems including (ram configuration, control systems, testing protocols)

• Pressure control equipment including (chokes, valves, manifolds)

• Monitoring systems including (pressure gauges, flow meters, gas detection)

• Operational procedures including (well control, trip procedures, handover protocols)

5. Well Barrier Schematics

5.1 Barrier Diagram Fundamentals

• Schematic representation including (symbols, color coding, status indication)

• Operational phases including (drilling, completion, production, workover, abandonment)

• Barrier envelopes including (primary, secondary, additional barriers)

• Barrier element identification including (critical components, acceptance criteria)

• Barrier dependencies including (overlapping barriers, common mode failures)

5.2 Schematic Development for Different Operations

• Drilling phase schematics including (surface, intermediate, production sections)

• Well control situation schematics including (kick scenarios, stripping, snubbing)

• Completion operations including (perforating, gravel packing, stimulation)

• Workover operations including (tubing retrieval, sidetracking, re-completion)

• Suspension and abandonment including (temporary, permanent barriers)

6. Pressure Testing and Verification

6.1 Pressure Test Fundamentals

• Test objectives including (leak detection, structural integrity, barrier verification)

• Test types including (low pressure test, high pressure test, inflow test)

• Test media including (water, completion fluid, nitrogen)

• Acceptance criteria including (pressure decay, temperature effects, volume monitoring)

• Documentation requirements including (charts, reports, approval process)

6.2 Advanced Testing Techniques

• Formation integrity tests including (leak-off tests, formation stress tests)

• Negative pressure tests including (procedures, interpretation challenges, acceptance)

• Extended pressure tests including (long duration tests, temperature compensation)

• Component-specific tests including (BOP testing, valve testing, connection testing)

• Alternative verification methods including (tracer tests, acoustic monitoring, thermal imaging)

7. Well Integrity Management System

7.1 Management System Framework

• System elements including (policy, organization, planning, implementation)

• Roles and responsibilities including (management, engineers, operations personnel)

• Documentation including (procedures, records, reporting)

• Performance indicators including (lagging indicators, leading indicators)

• Continuous improvement including (audits, reviews, lessons learned)

7.2 Monitoring and Surveillance

• Routine monitoring including (pressure trending, annulus pressure management)

• Well integrity tests including (frequency determination, scope definition, scheduling)

• Condition monitoring including (corrosion monitoring, erosion detection, vibration)

• Data management including (acquisition, storage, analysis, trending)

• Anomaly response including (investigation, categorization, escalation)

8. Risk Assessment and Management

8.1 Risk Assessment Methodologies

• Hazard identification including (HAZID, HAZOP, what-if analysis)

• Risk evaluation including (likelihood, consequence, risk matrices)

• Barrier risk assessment including (failure modes, common cause failures, dependencies)

• Qualitative and quantitative techniques including (fault tree analysis, event tree analysis)

• Risk acceptance criteria including (ALARP principle, corporate thresholds, regulatory requirements)

8.2 Risk Management Strategies

• Prevention measures including (design improvements, operational controls, maintenance)

• Mitigation measures including (detection systems, response plans, containment)

• Contingency planning including (backup systems, alternative methods, emergency response)

• Risk reduction verification including (assurance activities, performance verification)

• Management of change including (risk re-evaluation, documentation, communication)

9. Well Integrity Failure Management

9.1 Failure Identification

• Warning signs including (pressure anomalies, fluid returns, gas detection)

• Diagnostic techniques including (pressure testing, logging, fluid sampling)

• Failure classification including (severity assessment, barrier status)

• Investigation methodology including (data gathering, analysis, root cause determination)

• Reporting requirements including (internal, regulatory, industry sharing)

9.2 Integrity Restoration

• Contingency planning including (predefined responses, decision trees)

• Temporary barriers including (emergency systems, kill methods, plugs)

• Permanent solutions including (casing repair, cement squeeze, sidetrack)

• Verification methods including (testing protocols, monitoring requirements)

• Return to service criteria including (risk assessment, management approval)

10. Advanced Integrity Considerations

10.1 HPHT Wells

• Special considerations including (temperature effects, pressure extremes, material limitations)

• Extended barrier philosophy including (tertiary barriers, additional verification)

• Equipment selection including (metallurgy, sealing systems, qualification testing)

• Operational constraints including (narrow pressure windows, temperature management)

• Monitoring challenges including (sensor limitations, harsh environment)

10.2 Unconventional Wells

• Horizontal well challenges including (cement quality, casing wear, limited remediation)

• Multi-stage fracturing including (isolation integrity, pressure cycling, casing design)

• Multi-well pads including (well spacing, collision avoidance, simultaneous operations)

• Extended-reach wells including (friction management, buckling prevention, centralizer selection)

• Underbalanced drilling including (dynamic barriers, transition management, surface equipment)

11. HSE in Well Integrity

• Environmental protection including (groundwater protection, emission prevention, spill control)

• Personnel safety including (pressure containment, hazardous operations, emergency response)

• Asset integrity including (critical equipment, preventive maintenance, operating limits)

• Regulatory compliance including (reporting requirements, audits, permitting)

• Sustainability considerations including (long-term integrity, abandonment strategy)

12. Case Studies & Group Discussions

• Regional case studies from Middle East operations including (gas wells, high-pressure formations)

• Well integrity failures including (root cause analysis, response effectiveness, lessons learned)

• Successful integrity management including (barrier verification, monitoring programs)

• Decision-making exercises including (integrity anomaly scenarios, response planning)

• The importance of proper training in successful well integrity management