Oil & Gas Training
and Competency Development
Competency Management system SLB NEXT

High Gas-Oil Ratio Well Liquid Unloading

The course is designed to provide a  basic understanding of gas well liquid unloading methods.

This course covers fundamental topics of artificial lift methods and other methods using foaming agents to reduce the specific gravity of fluids in the wellbore.

At least one exercise is presented for each Artificial Lift method covered in this course. This will help to enhance the appreciation of the concepts presented and gain further insight of the processes involved in gas well liquid unloading.



Day 1


Hydrocarbon Physical Properties

Two Phase Flow Basics

Well Inflow Performance

Two Phase Flow in Tubing

Nodal Analysis


Day 2

Artificial Lift Methods

Artificial Lift Selection

Advantages and Disadvantages of Artificial Lift Methods

Sucker Rod Pumps

  • General Description
  • Conventional Application
  • High GOR Well Liquid Unloading Application


Day 3

Progressive Cavity Pumps

  • General Description
  • Conventional Application
  • High GOR Well Liquid Unloading Application

Electric Submersible Pumps

  • General Description
  • Conventional Application


Day 4

Electric Submersible Pumps (cont.)

  • Non Standard Applications

Gas Lift

  • General Description
  • Conventional Application


Day 5

Gas Lift (cont.)

  • Gas Well Liquid Unloading Application: Intermittent Gas Lift, Plunger Lift, Velocity Strings, Injection of Surfactants (Foaming Agents).


Learning activity mix

Gas Engineering Support Staff, Petroleum Engineers, Reservoir Engineers, Geologists, Geophysicists, Service Company Specialist Engineers, Project Support Staff (QHSE, Materials, Logistics, Purchasing and Finance), Gas Contractor Staff, Sales Engineers, Business Development Managers, Field Service Managers and R&D Specialists.

Participants should be familiar with basic Production Engineering, have some field experience in Production and basic knowledge of artificial lift systems. Basic understanding of well completions and operations.

Currently there are no scheduled classes for this course.

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