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Workover Well Control

Well Control with Clear Fluids | Est. Length: 2hrs

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"This course is recommended to every drilling and workover professional willing to gain or refresh the understanding of well control practices in workover operations. The content of the course is in depth analyses of well control practices related to workover operations that are not readily available in standard well control certification courses. The course is prepared by professional with extensive hands-on experience. Provided recommendations are field tested and cost conscious."

- Alexey Alexeyenko, Drilling Engineering Supervisor Unconventional Gas Drilling - Saudi Aramco


Well Control concepts have been developed mainly for drilling operations over the course of many years. They have resulted in a increased number of well control schools, where these techniques are taught to E&P and Service Companies key personnel.

However, often times, only conventional models are being applied to well control during completion and workover operations, which is sometimes incorrect. As workover and completions are usually conducted with clear fluids (brines), application of methods designed for and used in drilling may result in dangerous situations.

The aim of this course is to emphasize key differences between conventional well control Principles & Procedures taught in Well Control classes versus Well Control with brines during Workover or Completion operations.

Who should attend:

  • Rig Supervisors
  • Drillers, Assistant Drillers and Derrickmen
  • Rig Superintendents
  • Drilling, Completion, and Workover Engineers

Course Objective:

Participants will learn the core differences of well control with clear fluids, and follow the exercise on control of depleted well.

Additional Material:

  • Formation Losses Management Flowchart
  • Well Filling Decision Tree
  • Copies of Well Control Incidents Alerts and Reports



Your Instructor


Sergey Chernenkov
Sergey Chernenkov

With over 26 years of experience in the oil and gas industry Sergey Chernenkov is recognized as a top performer Completions, Workover & Well Interventions Engineer. He holds an MSc-equivalent degree in Drilling Engineering from Ufa State Petroleum Technical University.


During his first decade in the oilfield, Sergey worked for a number of workover rig contractors. Starting as a roustabout he progressed through every step of the hierarchical ladder in rig operations in multinational projects up the level of rig toolpusher by in Western Siberia. He was then hired as on-job-training Instructor to mentor professional transition of several Russian rig crews in the woods of Orenburg Region in the middle of Russia, and that is when he fell in love with the possibility of sharing his skills and knowledge with other people. "That was one of the most enjoyable experiences throughout my career, and the feelings advanced later to great passion for training."

Since then he has worked in over 7 countries and covered a broad range of activities in wells' planning, design, engineering and execution phases, starting from wells ’ Completion throughout the well life cycle - Workover and Interventions, and production optimization until well's P&A (Plug and Abandon).

Sergey is a member of SPE International, and participate in other professional communities such as Energy Institute UK, Oil-and-Gas-Online, Russian Oil Forum, ICoTA, and many others. In 2008 he received the recognition letter and prize award from SPE Board of Directors for the active participation in SPE eMentoring Program.


Frequently Asked Questions


When does the course start and finish?
The course starts now and never ends! It is a completely self-paced online course - you decide when you start and when you finish.
How long do I have access to the course?
How does 12-month access sound? After enrolling, you have unlimited access to this course for 12 months as often as you like - across any and all devices you own.
What if I am unhappy with the course?
We would never want you to be unhappy! If you are unsatisfied with your purchase, contact us in the first 30 days and we will give you a full refund.

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