Closing the gap between seismic and well data with 3D DAS VSP: an integrated workflow

Abstract

Summary The purpose of this study is to show how the 3D DAS (distributed acoustic sensing) VSP (vertical seismic profile) technology can benefit the daily work of geoscientists in areas of high geological complexity. The 3D DAS VSP seismic is particularly useful not only because of operational advantages (type of installation, quick deployment, lower cost, execution during production, among others) but mainly due to enhanced seismic imaging such as superior resolution and higher frequency content, that allows the improvement of all geophysical and geological workflows, as well as a better correlation between the conventional seismic data and well log data, in a multi-scale integration approach. This enhancement is particulary relevant in areas of high complexity in geological settings and reservoirs, and permits a more detailed geophysical and geological analysis. In this study, the results obtained from the geophysical analysis of the 3D DAS VSP were integrated with the field model and used to propose, validate, and steer new well locations in the area of interest, demonstrating the value of incorporating this technology within more traditional methods.