New Strategies for Designing the Horizontal Well Profiles

There are three sections, namely: 1.   Vertical section: It is drilled from sea bed (mud  line) until KOP (the point  where deviating or sidetracking begins).   2-Turned (Curved or angle-build) section: It is drilled from KOP to the end-of-curve (EOC). This section includes the first-build arc, the straight...

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Horizontal Drilling Problems

WOB (Weight On Bit) Conventional bit weight for efficient drilling is about 2000-5000 lbf per inch of bit diameter. Motor assemblies are more efficient with bit weight less than rotary assemblies. Bit weight may be increased by reducing drag and torque and by using the split assembly .        Torque and...

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Horizontal well completion

the completion that can be run through a given radius of curvature will depend on 1.the radial clearance between the completion item and hole(liner size), 2. the length and flexibility of the completion, 3.the rating of the connection   Horizontal well Completion Options   1.Open hole 25% 2.Slotted Liner 55% 3.Liner with...

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Horizontal Wells (why and advantages)

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Horizontal drilling methods(Reason and methods )

The choice of drilling method depends upon: — Cost, —Well spacing and —Mechanical conditions of a vertical well bore —In addition, reservoir consideration. —  BUILD RATES —Ultra-short Radius —Short Radius —Medium Radius —Long Radius  ULTRA-SHORT RADIUS —45 to 90 degrees per foot —Special...

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