Correlating Pressure with Microseismic to Understand Fluid-Reservoir Interactions During Hydraulic Fracturing

摘要

Hydraulic fracturing of shales and other tight formations has gained tremendous prominence over the past decade or so, and is set to grow in importance with increasing global energy demands. In recent years, new methods, which develop upon older techniques, have been proposed for the interpretation of multi-stage hydraulic fracturing data. A major issue has been validating these methods for wider applicability within the industry, considering some limitations that these techniques pose as a result of certain inherent assumptions. In this paper we take up a recently proposed diagnostic technique and analyze completion data from multiple shale gas wells. We correlate the results with available microseismic monitoring data and validate the interpretations made using this approach. Using actual stage-wise production contributions information from production logs, we also highlight the limitations of the current approach when it comes to predicting overall stage-wise completion quality.