Drillers need to account for loss to viscosity when dialing in mud flow.

Learn the basics of viscosity testing and how to talk fluently about your drilling fluids.

How can drilling contractors get rid of free liquids while staying on budget?

For makeup water, often quantity, not quality, is the issue.

Columnist walks through products for drilling jobs, start to finish.

Over the last few years, the popularity of pre-packaged, bentonite-free liquid polymer drilling fluid products has grown in the horizontal directional drilling industry.

We are coming out of our heavy horizontal directional drilling (HDD) mud school season and entering the spring start-up.

This column goes over a few more ways to evaluate mixed-metal hydroxide (MMH) fluids, and touches on troubleshooting when contractors don't get the results they want.

Back in early 2000, when I first started working with mixed-metal hydroxide, very few drillers had ever heard this type of fluid and even fewer had ever seen it used.

The grout serves as an integral part of a properly functioning heat loop system, and also creates a low-permeable seal through the length of the borehole. Follow these steps to ensure a good sample of grout for thermal conductivity testing.