Last modified: 24 Jun 2020 14:40
|Session||First Sub Session||Credit Points||15 credits (7.5 ECTS credits)|
The aim of the course is to give students an overview of the origins of petroleum, factors influencing commerciality of fields, and the technical and economic need for decommissioning. Students will gain practical understanding of the main technologies and procedures involved in the plugging and abandonment of oil and gas wells prior to decommissioning. The key aspects of specific regulatory and legislative drivers are also covered to provide the basis for the plugging and abandonment procedure.
This course examines different methods for well plugging and abandonment (P&A). A general overview of reservoir and petroleum geology is presented with emphasis on depleted reservoirs and associated challenges for P&A. Specific regulations set by regional and national governments of well plugging and abondonment are discussed. A detailed discussion is provided of the different methods for well plugging and abandonment, and associated technologies. The application and limitations of materials such as cement slurries, gelled pills, mechanical plugs, inflatable plugs and sand plug are discussed, focusing on installation procedures and reliability and long-term (decadal) monitoring of well integrity. Project planning and P&A implementation costs are examined. Real-life case studies are used to support student learning.
Information on contact teaching time is available from the course guide.
Timed online test (30%)
Timed online test (35%)
There are no assessments for this course.
|Knowledge Level||Thinking Skill||Outcome|
|Procedural||Evaluate||Assess the engineering and economic requirements for successful abandoning of wells and decommissioning fields.|
|Procedural||Create||Design an appropriate plugging and abandonment procedure considering the advantages and limitations of various P&A tools and technologies.|
|Procedural||Analyse||Perform well integrity assessment considering depleted reservoir conditions and standard industry regulatory frameworks.|
|Procedural||Evaluate||Evaluate the efficiency of plugging and abandonment technologies and operations in terms of costs, operational risks and environmental impacts.|