In 2015, a detailed field study in the Eagle Ford shale tested how well TUNDRA MAX could reduce drilling fluid temperatures at a high flow rate with a small footprint. The study compared wells in South Texas equipped with advanced drilling automation tools, both with and without the mud chiller. The analysis included drilling speed, efficiency and downhole tool operational safety.
The well not using the mud chiller logged two temperature-related downhole tool failures, causing significant downtime. When TUNDRA MAX was activated on the second well, the operator reported zero temperature-related failures. A reduction in downhole tool trips alone allowed the well to be drilled two days faster than the previous well.
A reduction in downhole tool trips alone allowed the well to be drilled two days faster than the previous well.
In this same study, the battery on the high-speed downhole dynamics measurement tool achieved 240 of 250 hours of maximum battery life. This unprecedented 44 percent increase – up from 167 typical hours – was credited to TUNDRA MAX reducing bottomhole temperature by 22 degrees Fahrenheit/12 Celsius.
Superior cooling reduced the amount of circulation required to lower the temperature of the well. The cooler environment gained an additional 1,000 feet/305 meters before equipment-damaging temperatures were encountered. Drilling restarted sooner and saved 51 hours of non-productive time.
Well operators in southern Louisiana have also confirmed the high performance of TUNDRA MAX. The mud chiller was enabled on a well at 16,900 feet/5,150 meters, reducing the temperature gradient by 15 percent and saving 28 hours of temperature-related downtime.
TUNDRA MAX mud chillers eliminate dependence on local air and water conditions while extending equipment life and increasing drilling performance. These tough, efficient units are giving well operators a faster, more reliable way to beat the heat.