Efran Savaramini

Fundamentals of Stress Shadowing Effects During Hydraulic Fracturing

This course provides a comprehensive overview of fundamentals of stress shadowing effects during hydraulic fracturing, starting with a review of fundamental fracture mechanics, including Sneddon’s principal and stress distribution around fractures. We explore stress shadowing in various fracturing scenarios, from multi-stage, multi-cluster to single-stage, multi-cluster setups, emphasizing its role in driving geometric non-uniformity. Practical insights are offered, including techniques for calculating stage-by-stage fracture height using ISIP data and understanding the impact of extreme limited entry.

1.00 – Introduction (11 min.)  Sample Lesson
1.01 – Distribution Of Stresses In An Infinite Plate (24 min.) 
1.02 – Illustration Of 3D Stress Field (22 min.) 

2.01 – Stress Shadowing In Multicluster Completions – Stage 1 (10 min.) 
2.02 – Duvernay Case Study Example (27 min.)
2.03 – Stress Shadowing In A Multi-Cluster Wellbore: Subsequent Stages (7 min.) 
2.04 – Stage By Stage Stress Shadowing Effects: Stress Escalation Theory (17 min.) 
2.05 – Late Or Dominant Fracture Growth Phase (6 min.)
2.06 – General Stress Escalation Solution (9 min.) 

3.01 – Fracture Propagation In Leakoff & Storage Dominated Regimes (13 min.) 
3.02 – Quantifying Fracture Half-Length & Height In Duvernay Case Study (17 min.) 
3.03 – Limiting Factors: Rock Heterogeneities Impact On Fracture Non-Uniformity (4 min.)

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