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Cementing Technologies (DRI30)

    Description

    Cementing operations constitute the foundation of any oil or gas well. Like the foundation of a house, cementing is the basis for a safe and efficient well performance. Unless successful cementing operations are carried out, well integrity will be compromised with potential serious safety issues and shortening of well life cycle.
    Even if you are not directly involved in Cementing Design and Execution, understanding the challenges of these important techniques will assist in performing your job.

    Course Level: Skill
    Instructor: Antonio Abreu

    Designed for you, if you are...

    • A petroleum or production engineer
    • A drilling or completion engineer
    • Oil field technical staff

    How we build your confidence

    • Instructor-led delivery focusing both on theoretical concepts and practical onsite experience
    • Real SAP cases will be monitored and evaluated
    • Videos, exercises, case studies will be presented

    The benefits from attending

    By the end of the course you will feel confident in your understanding of:

    • Calculating volumes of cement, mix water and additives
    • Critical parameters for any cementing operation
    • Selecting displacement rates for effective mud removal
    • When to select two stage cementing
    • Selection of the proper additives based on well conditions
    • How to read and interpret cement bond logs
    • Special cement systems
    • Selecting casing hardware for successful cementing operations

    Topics

    Introduction to Cementing Operations
    • Course introduction
    • One stage cement jobs
    • Two stage jobs
    • Liner cementing
    • Squeeze cementing
    • Cement head and wiper plugs
    • Calculations: Volume of cement slurry, number of Sks, mix water, additives, displacement volumes required
    • Calculator for all parameters of the cement job
    • Pressures during and at end of displacement
    • Rheology of cement slurries, spacers and washes
    • Types of displacement (Laminar Flow, Plug flow and Turbulent flow)

    Cementing Operations Planning and Execution
    • Buoyancy effect on casing
    • Relevant factors that influence the success of any cement job
    • Cement job planning and execution
    • Casing hardware
    • Cement chemistry (focus on class G cement)
    • Compressive strength and permeability
    • Strength retrogression
    • Thixotropic cement slurries
    • The importance of BHCT and BHST
    • Mud removal and the effect of mud contamination on compressive strength
    • Gas migration

    Mud Removal and Cement Placement
    • Lost circulation
    • Cementing horizontal wells
    • Cement laboratory equipment
    • Rheology and its application in oil well cementing
    • Flow modules and mud removal
    • Spaces and washes
    • Cement placement: turbulent and laminar flow
    • Special cement systems:
      - Engineered particle size cements
      - Salt cementing
      - Thixotropic cement systems
      - Light weight cements
      - Foam cement
      - Permafrost cement

    Cement Quality Evaluation
    • Cement quality evaluation logs (cement bond logs)
    • Overview of sonic and ultrasonic logs
    • Examples of CBL/VDL log displays and evaluation of cement quality
    • CBL VDL: pros and cons
    • The bond index
    • SCMT: slim cementing mapping tool
    • Ultrasonic tools: USIT
    • Ultrasonic log USIT over sonic log CBL
    • Cement logs summary
    • Examples of CBL/VDL log displays and evaluation of cement quality
    • Major hazards on a cementing operation
    • Risk assessment
    • Safety hazards related to a cementing operation


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