July 1, 2020 – June 30, 2022

Prof. Dr. Leonhard Ganzer

This research project builds on the work conducted in DGMK Project 704 on core flooding and the microfluidics technology developed in DGMK Project 746. It summarizes the developments of the past decade regarding mechanisms for conformity optimization in reservoirs.
Based in part on this literature review, various methods, including in-situ cross-linking polymer gels, are evaluated for experimental investigations. Their suitability and performance are tested in micromodels tailored to mature oilfields with common conformity issues. To this end, the selected methods are examined in a comparative test series under identical parameters. Injection of the agents can occur on both the injection and production sides. Various analytical methods are intended to identify the mechanisms behind a reduction in the water cut and increased oil production. The effective oil and water permeabilities are determined in supplementary core flooding tests.
In general, the aim is to expand understanding of the application of various products and methods in the field. This should provide guidance for subsequent experiments under reservoir conditions, i.e., different temperatures, formation waters, and crude oils, across various oil and gas fields.