directional drilling - a step in the right direction
Post on 14-Dec-2015
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Directional Drilling
A Step in the Right Direction
Directional Wells
• Horizontal – Short Radius– Medium Radius– Long Radius
• Slant– Straight, but at a predetermined angle
• Deviated– “S” Curve
Single Wells-Multilateral Wells
Slim Hole Mud Motor with Bent Sub
Monel Drill Collars
MWD Tools
Self-contained Wire Line Unit
MWD - “Measurement While Drilling”
• Real time directional surveys
• Rotational speed of the drillstring
• Mud flow volume
• Downhole temperature
• Torque and Weight on Bit
LWD - ”Logging While Drilling”
• Measures– Formation density– Porosity– Resisitivity– Inclination at the Drill Bit– Magnetic Resonance– Formation Pressure
Directional Driller’s Control Room
MWD Toolbox
Satellite Uplink
Horizontal Wellbore
Advantages
• Multiple wellheads on single pad
• Less surface and environmental disturbance
• Less roads and ROWs to maintain
• Drilling and production waste centralized to one site
• Centralization of facilities
• Lower operating costs
Three wells - All directional to the same formation
Four wells - One straight well and three directional wells - Same formation
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