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Transcript of 1 Fundamentals of Drilling Directional Drilling – Fields of Aplication presentation No. 3...
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Fundamentals of DrillingDirectional Drilling –
Fields of Aplicationpresentation No. 3
Fundamentals of Onshore Drilling
references:
• Bernt S. Aadnoy, Iain Cooper, Stefan Z. Miska, Robert F. Mitchell, Michael L. Payne: Advanced Drilling and Well Technology. SPE 2009, ISBN: 978-1-55563-145-1.• Robello G. Samuel, Xiushan Liu: Advanced Drilling Engineering – Principles and Design. Gulf Publishing Company, Houston Texas, 2009,
ISBN: 978-1-933762-34-0.• World Oil´s Handbook of Horizontal Drilling and Completion Technology.
Gulf Publishing Company, Houston, Texas 1991, ISBN: 0-87201-361-8.• A Primer of Oilwell Drilling. Petroleum Extension Service, Houston, Texas 2001, ISBN: 0-88698-194-8.•Directional Drilling and Deviation Control Technology. French Oil and Gas Industry Association Technical Committee, 1990.
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Reasons for Directional Drilling / Deviation Control
1) to reach a planned target area
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Screwing / Unscrewing Drillpipe
2) to obtain / control a planned hole trajectory
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Screwing / Unscrewing Drillpipe
3) to sidetrack or abandon a portion of a hole
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Terminology of Directional Well Profiles
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Classification of Buildup - Rates
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Measuring the Wellbore Course
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Key Seat Buildup in Doglegs
Dogleg Severity (DLS) means CURVATURE of the hole expressed in Degrees / 100 ft
DLS is critical for:
building of keyseats torque and drag casing running operation running logging sondes
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Measurement While Drilling (MWD) Techniques
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Why Hole Deviation Occurs?
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Why Hole Deviation Occurs?
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Controlling Hole Inclination by Bottom Hole Assembly (BHA)
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Basic Types of Stabilizing Tools
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Controling Hole Inclination with Adjustable Stabilizers
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Controlling Wellbore Trajectory with Steerable DHM
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Positive Displacement Motor (PDM)
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Positive Displacement Motor Components
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Performance Characteristic of Drilling Turbines
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Directional Drilling with DHM – Steering Systems
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Open Hole and Cased Hole Sidetracking with a Cement Plug
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Sidetracking with Oriented Whipstock Technique
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THE END!!!
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Screwing / Unscrewing Drillpipe