• Spatial and Temporal Effects on Low Frequency DAS and Microseismic Implications on Hydraulic Fracture Geometry and Well Interactions

    In the Hydraulic Fracture Test Site 2 (HFTS2), the integration of Low Frequency Distributed Acoustic Sensing (LF-DAS) and Distributed Strain Sensing (DSS) with traditional fracture geometry diagnostic tools are revealing unique information about fracture geometry and the propagation tendencies of fractures generated while stimulating the Wolfcamp in the Permian Delaware Basin. The observed spatial and temporal dependencies in the Microseismic and LF-DAS datasets strongly suggest there is a lot of re-opening and re-fracturing of pre-existing fractures, not only of the Frac-Zone Domains (FZDs) from the “parent/primary” wells but also from pre-existing fractures of the FZDs from offset “child/infill” wells that are part of the same stimulation vintage. The data suggest that fracture growth is impacted by the location of pre-existing hydraulic fractures and their stress state. The findings in HFTS2 highlight the risk not only of misinterpreting microseismic derived Stimulated Rock Volume, but also more importantly, the development of new completion practices and wells stimulation sequencing. 

    This presentation is from the 2022 SPE Hydraulic Fracturing Technology Conference and Exhibition. 

    • Paper Number: SPE- 209180-MS 
    • Published: 25 January 2022 
    • Authors: Gustavo A. Ugueto; Jackson Haffener; Somnath Mondal; Alexei A. Satviski; Paul T. Huckabee; Kyle Haustveit 

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  • Spatial and Temporal Effects on Low Frequency DAS and Microseismic Implications on Hydraulic Fracture Geometry and Well Interactions

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