3-D Hydraulic Fracturing and Reservoir Flow Modeling - Key to the Successful Implementation of a Geo-Engineered Completion Optimization Program in the Eagle Ford Shale

2015 ◽  
Author(s):  
Herb Sebastian ◽  
Ivan Gil ◽  
Mitchell Graff ◽  
Jeff Wampler ◽  
German Merletti ◽  
...  
Keyword(s):  
Hydraulic Fracturing ◽  
Successful Implementation ◽  
Flow Modeling ◽  
Eagle Ford Shale ◽  
Eagle Ford ◽  
Optimization Program ◽  
Reservoir Flow

A risk-based approach for managing hydraulic fracturing–induced seismicity

Science ◽  
2021 ◽  
Vol 372 (6541) ◽  
pp. 504-507
Author(s):  
Ryan Schultz ◽  
Gregory C. Beroza ◽  
William L. Ellsworth
Keyword(s):  
Hydraulic Fracturing ◽  
Induced Seismicity ◽  
Red Light ◽  
Maximum Magnitude ◽  
Traffic Light ◽  
Induced Earthquakes ◽  
Eagle Ford Shale ◽  
Eagle Ford ◽  
Sensitivity Tests ◽  
Spatially Varying

Risks from induced earthquakes are a growing concern that needs effective management. For hydraulic fracturing of the Eagle Ford shale in southern Texas, we developed a risk-informed strategy for choosing red-light thresholds that require immediate well shut-in. We used a combination of datasets to simulate spatially heterogeneous nuisance and damage impacts. Simulated impacts are greater in the northeast of the play and smaller in the southwest. This heterogeneity is driven by concentrations of population density. Spatially varying red-light thresholds normalized on these impacts [moment magnitude (Mw) 2.0 to 5.0] are fairer and safer than a single threshold applied over a broad area. Sensitivity tests indicate that the forecast maximum magnitude is the most influential parameter. Our method provides a guideline for traffic light protocols and managing induced seismicity risks.

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