Measurements for Conformance Control and Water Shutoff in Reservoirs with Focus on Polymer and Gel Systems

(Text nur in Englisch verfügbar)

Introduction

A major issue of mature oil fields and reservoirs with heterogeneous geological characteristics is the high water cut.  In a current project, these issues are modelled in the lab in core flooding and microfluidic experiments. To obtain a deeper insight into the topic, an intensive literature review shall illustrate the current State-of-the-Art and recent findings and developments. It shall include and pursue the last review completed in 2009 (Note: The last review was conducted for the DGMK and the results were published in German. As this review is the foundation of further review, the student needs to be fluent in reading and understanding the German language!).  This review focused on the application of gels and polymers and will be updated. Furthermore, the student shall briefly summarize strategies apart from application of those agents to decrease the water cut.

Scope

Based on the above introduction, the proposed thesis should include the following:

  1. Basic understanding of conformance issues and their root causes.
  2. Brief, but all-embracing summary of strategies and methods to target described issues.
  3. Intensive literature review on the topic of conformance control and water shutoff from 2009 until today in terms of chemical flooding.
  4. Embracing discussion of known agents and polymer systems to treat above stated issues, their properties, working mechanisms and application with detailed focus on findings in recent years.
  5. Summary of performed lab analysis and significant findings.
  6. Inventory of field applications and trials.

References

  • R. D. Sydansk, L. Romero-Zerón, Reservoir Conformance Improvement, Society of Petroleum Engineers, Richardson, Texas, 2011.
  • DGMK 704 Projektberichte (handed out to the student after submission to the topic).