Interpretation of the Shallow Hazards Using Seismic Attributes in an Agile Methodology

This paper is based on the results obtained in the Shallow Hazard Analysis performed during the visualization phase of a real CCS project, in which it has been detected by some wells in the area, an important risk of gas leakage from the reservoir up to the shallower levels (around than 100m from surface) through the main faults or through the vertical pathway associated to a low top seal performance. This matter has been correlated with a deep seismic interpretation and attribute analysis. This methodology proposed by the GCS team, applying an alternative way for the CCS projects, is able to to generate a potential leakage-risk map surrounding the candidate selected that lets to reduce the lateral and vertical seal integrity, at the same time that also lets to propose the best locations for the CO2 injector wells, saving time, cost and generating a safety for the drilling operations people and for the environment.