The kelly is a primary link between the drilling rig's surface equipment and the bit, and is therefore a critical component of the ...

A well-designed drill string is instrumental in optimizing penetration rates, controlling wellbore deviation, maintaining an "in gauge" ...

Drill String Design As inclination angle increases in a directional or horizontal well, the borehole …

Drilling Directional Wells Underbalanced The main justifications for drilling a directional well underbalanced are to …

One of a drilling fluid's primary functions is to remove drilled cuttings and transport them to the surface-in other words, to clean the hole. The term carrying capacity ...

Horizontal drilling is the process of directing part of a well course through a reservoir such that its inclination angle is approximately 90° from vertical.

Directional Drilling Tools and Techniques: The planning, equipment and procedures involved in drilling non-directional wells also apply ...

the exact causes of wellbore deviation are unknown, we can list the following as contributing factors: • Formation type ( lithology, ...

Directional drilling is the practice of accessing an underground oil or gas reserve by drilling in a non-vertical direction. Directional...

After completing this topic "Cement Evaluation", you will be able to: • Summarize methods for evaluating quality of a cement bond.