Explore Unitech UTMUL-P primary and UTMUL-S secondary emulsifiers for oil-based mud systems, including OBM performance, HTHP fluid loss and high-temperature applications.

Learn about the most common drilling fluid additives and chemicals used in oil and gas drilling, including viscosifiers, fluid loss agents, shale inhibitors, weighting agents, lubricants, and more.

Learn how rheology modifiers control PV, YP, gel strength and LSRV in drilling fluids. Compare xanthan gum, organoclay and specialty polymers and learn how to select the right modifier for WBM and OBM.

Oil-based drilling fluids (OBM) are widely used in deep, high-temperature wells because of their superior thermal stability, shale inhibition, lubricity, and wellbore stability. However, when drilling in extreme High-Temperature High-Pressure (HTHP) environments—especially above 300°F (150°C)—traditional oil-based mud systems may lose stability, resulting in emulsion breakdown, fluid separation, excessive filtrate loss, and increased rheological issues.

Preparing to participate in the 2026 international oil & gas exhibition to expand our global business network.

Since the launch of core products such as CACL-VIS and CMS-HT in 2020, the company has continued to enhance performance, earning broader recognition from international businesses this year.