Day 1

Oil Field Primary Cementing

Oil Field Primary Cementing – Introduction

• Introduction, goals and objectives
• Oil field cementing introduction
• Self-test

Cement Functions, Additives, Composition, Lab Tests

• Functions, type, composition and classification
• Cement additives and mechanism of action
• Rheology of well cement slurries
• Cement laboratory testing
    – Sample preparation
    – Performance evaluation
    – Characterisation and analysis

Fluids Mud Displacement, Fluid Migration

• Fluid mud displacement
    – Mud removal and channeling
    – Displacement factors, problems
• Fluid migration
    – Flow through mud channels
    – Micro-annular flow
    – Flow through unset cement

Primary Cement Calculations

• Primary cementing
    – Calculated volumes, example 1
• Primary cementing exercise
    – Volumes of cement, mix water
    – Volumes of mud displacement

Debrief: Review of Day 1

Day 3

Tools | Equipment, Evaluation and Plug Back

Cementing Equipment

• Cement placement tools and equipment
• Float equipment
• Cement mixing and pumping
• Bulk supply
• Chemical metering
• Other specialised equipment
• Batch mixers
• Specialised cementing equipment

Cement Evaluation Guidelines

• Traditional logging method for CE
• Analysis of different cement conditions
• Peripheral and longitudinal evaluation of CB
• Practical work session problems

Remedial/Plug Back Cementing

• Squeeze cementing theory,
• Placement techniques
• Slurry design , application procedures
• Evaluation and reasons for failures
• Plug back cementing, methods and techniques
• Plug cementing theory and cause of failure
• Plug setting enablers and testing

Debrief: Review of Day 3

Day 2

Cement Calcs, Interaction, Special Cements

Single Stage Cement Calculations

• Exercise – example 1 and example 2
• Results discussion and review

Cement / Formation Interactions

• Fluid loss (dynamic and static)
• Fluids loss during remedial cementing
• Formation damage
• Lost circulation – consequences
    – Classification of loss circulation
    – Loss circulation drilling, cementing
• Lost circulation conclusions

Specialised Cement Systems

• Thixotropic, expansive and freeze-protected cement
systems
• Salt cement systems
• Latex modified cement systems
• Cement for corrosive environments
• Cementitious drilling fluids
• Light weight and particle size cementing
• Thermal cements
• Foam cements
• Horizontal well cementing

Debrief: Review of Day 2

Day 4

Squeeze, Horizontal, Life of Well Cementing

Plug Back Cementing Calculations

• Well suspension and abandonment
• No spacer, equal height spacers
• Spacer ahead of cemen
• Two unequal spacers
• Mixtures and solutions

Horizontal Well Cementing

• Well classification
• Well applications
• Completion procedures
• Mud removal
• Cement slurry properties

Life of Well Cementing

• Well engineer casing and cement solutions
• Effects of well stress and modes of failure
• Life of well engineering and design
• Job execution and cement plug success
• What causes micro-annulus?
• An integrated approach

Cement simulation and Data Acquisition Software

• Process overview
• 2D and 3D hydraulic simulations
• Cement sheath stress analysis
• Real time data acquisition
• Case history application

Debrief: Review of Day 4

Course feedback and close out