Microbial Enhanced Oil Recovery (MEOR)

Ziyen Advantage Program – Microbial Enhanced Oil Recovery (MEOR)

Up to two thirds of all discovered oil is not recoverable by primary and secondary production.  Successful tertiary or Enhanced Oil Recovery (EOR) requires an interdisciplinary understanding of reservoir geology, engineering, production history, injection water chemistry and microbiology.

EOR processes are divided into:

  • Thermal processes
  • Chemical methods
  • Miscible displacement processes
  • Microbial processes (MEOR)

For Chemical and Microbial processes to be effective the injection water chemistry must be known and potential limitation for the proposed EOR method understood.

The Benefits of MEOR is the ease it is scalable from small to large fields, as the application can be applied to selected individual injection wells.  It is a low cost implementation compared to traditional EOR with low CAPEX and simple cost effective nutrient recipe.  All reservoirs where oil can be mobilized during water flooding are candidates and the best application in sandstone reservoirs with good permeability.

The best results are obtained if applied during early stages of water flooding or in fields with previous inefficient water flood operation and limited in-field drilling.  The other benefit of MEOR is it creates the and lowest environmental impact of all EOR technologies.

Dr. Thomas Ishoey – Biochemistry and Chemical Engineer Consultant

Dr. Thomas Ishoey joins the Advisory Board as Biochemistry and Chemical Engineering Consultant. Dr. Ishoey has extensive experience in development and commercialization of applied microbiology and biotechnology applications including Microbial Enhance Oil Recovery (MEOR) as the application of biological processes to facilitate, increase, or extend oil production from a reservoir.

He has pioneered the understanding of microbial communities at the single cell level by use of micromanipulation anddeveloped technology to improve recovery performance by mobilizing oil left behind by primary production mechanisms, or secondary water flooding operations.

Dr. Ishoey holds a master’s degree in chemical engineering and a doctorate in biotechnology, both from the Technical University of Denmark. He has also worked as visiting researcher at University of California, Los Angeles (UCLA) for a two-year period.

For further reading, Dr Thomas Ishoey was a key contributor to the published white paper in the Society of Petroleum Engineers

“Field Experience from a Biotechnology Approach to Water Flood Improvement”