Well Servicing & Workover

COMP/WSWOE

Who should attend?

  • This course provides the required comprehensive knowledge and skills for well servicing and workover.
Audience :
  • Completion, well servicing or workover engineers and supervisors, with client or service companies, familiar with well control operations.

Level : Foundation

Course Content

  • TYPES & MEANS OF INTERVENTION ON PRODUCING WELLS

      • Mains types of intervention: measurement, maintenance, workover.
      • Introduction to main means (wireline unit, coiled tubing unit, snubbing unit, workover rig): principles, area of application.
  • GENERAL PROCEDURE OF A WORKOVER

      • Main operation steps: chronology, more tricky operations from a safety point of view, main operations.
      • Case of depleted reservoirs: losses and formation damage, kick-off after the workover.
  • WELL KILLING PROCEDURE FOR A PRODUCING WELL

      • Killing the well by circulation: area of application, basis procedures (direct or reverse circulation), elaboration of the forward-looking pumping diagram.
      • Killing by squeeze: area of application, basis procedure, elaboration of the operating program, case where the injectivity test is unsatisfactory, squeeze and bleed-off method.
      • Final killing phase: observing the well, operations to run after packer “unsetting”.
  • WELL OPERATIONS ON PRODUCING WELLS

      • Wireline operations: principle and area of application, surface equipment, wireline tool string, WL tools, fishing tools, safety during operations.
      • Coiled tubing operations: principle and area of application, surface equipment, CT downhole equipment, CT safety and operating considerations.
  • CASE STUDY: WORKOVER PROGRAM

  • KNOWLEDGE ASSESSMENT

Learning Objectives

  • Upon completion of the course, participants will be able to:
  • select the right means for well intervention,
  • design well servicing or workover programs,
  • supervise well servicing or workover operations.

Ways & Means

  • Two case studies are worked out: one for well servicing, the other for workover.