Drill String Design For High Inclination and Horizontal Wells
How Drill string Design In Horizontal Wells Differs From In Vertical Wells

The design approach in high inclination and horizontal wells differs from the approach in vertical wells in the following respects:

- In high inclination / horizontal wells, traditional BHA components are often eliminated. Drilling Bit weight is likely to be applied by running normal weight drill pipe in compression, a practice never recommended in vertical holes.
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