Dimensions and Strengths https://youtu.be/-IoTMZDJQIg Like other oilfield tubulars, drill pipe comes in a variety of lengths, diameters, weights and grades of steel. Drill pipe is also specified according to its upset (the type of end section provided for weld-on connections or tool joints). Factors that influence drill pipe selection include: Hole size Well …

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" ...