How to Strengthen and Stabilize the Wellbore during Drilling ...

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Managing Lost Circulation: A 4-Tiered Strategy 6
Tier I. Best Current or New ‣ Accurate, precise Geomechanics Model, esp. Pore Pressure / Fracture Gradient ‣ Minimum and invariant Equivalent Circulating Density (ECD) • Accurate hydraulics profile for pre-drilling & at well site • Good hole-cleaning gpractices • Optimized solids control equipment ‣ Managed Pressure Drilling ‣ Casing While Drilling ‣ Expandable Casing/Liner 7
Page 1 and 2: Primary funding is provided by The
Page 3 and 4: Presentation Outline ‣ The Lost C
Page 5: The Lost Circulation Problem • Es
Page 9 and 10: Tier II. which Minimize Losses: WBM
Page 11 and 12: Managing Lost Circulation: A 4-Tier
Page 13 and 14: Managing Lost Circulation: A 4-Tier
Page 15 and 16: Strategies for Strengthening the We
Page 17 and 18: Fracture Closure Stress • High-fl
Page 19 and 20: Fracture Closure Stress As the slur
Page 21 and 22: Hoop Stress Enhancement As fracture
Page 23 and 24: Hoop Stress Enhancement Application
Page 25 and 26: Acceptable Large, Tough and Granula
Page 27 and 28: Continuous Addition of to whole mud
Page 29 and 30: eepwater Case History Gulf of - Mex
Page 31 and 32: Summary The 4-tier strategy for man

How to Strengthen and Stabilize the Wellbore during Drilling ...

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