FORT COLLINS — On a chilly March night, city councilmembers faced an unusual sight: citizens imploring them to increase taxes. They had packed council chambers to plead for a proposed ban on hydraulic ...

The methodology uses actual survey data and known surface hook loads for different operating conditions, such as tripping in, tripping out, and rotating off bottom, to arrive at appropriate friction ...

Drilling deeper, longer and more challenging wells has been made possible by improvements in drilling technologies, including more efficient and effective drilling fluids. Drilling fluids, also ...

Friction and wear pose enormous challenges to 21st Century mechanical and electromechanical systems. By one estimate, 6% of the gross national product is wasted through its impact. Tribology is the ...

Melting holes is sometimes a better option than drilling them. Thermal drilling relies on friction from a carbide bit to melt and extrude metal and form a hole. The process leaves a thicker lip around ...

A new drill pipe buckling model provided excellent predictions for each full-scale buckling test performed, not only in terms of deformed buckling shape but also in terms of weight transfer. Existing ...

Drilling into metal may seem intimidating, but with the right tools and techniques, it’s a job that DIY enthusiasts can tackle with ease. However, there are some subtle differences that you should be ...