Cold Water Injectivity Test
for Water Mobility Assessment
For oilsands thermal simulation models, the bitumen-bearing formation’s water permeability is a valuable piece of information. The cold water injectivity test is an effective technique for obtaining in-situ permeability data beyond the near-wellbore region. The test involves injecting cold formation-compatible water into the oilsands payzone at very low constant-rates. Following the injection, the well is shut-in to allow for a natural pressure decline.
This type of tests can help obtain a reliable description of the reservoir water permeability, the initial reservoir pressure and the reservoir’s heterogeneities (layering, fractures, etc.) When multiple wells and/or multiple test intervals are used, a series of test can be designed to detect vertical and/or horizontal communication.
Our deliverable includes a comprehensive report with detailed analyses and geomechanical review.