Our in-house developed caliper tools provide accurate and high resolution measurements of wellbore anomalies to troubleshoot issues. A range of tools are available with temperature ratings of 428°F and 600°F (220°C and 315°C) for oil & gas and geothermal applications respectively. In support of the caliper we also have cameras, short interval gyro surveying, and visualization software to best understand the well for early detection of deformities, corrosion and leaks inside the tubing or casing.

Vulcan™ MFT 24

With a finger sensor every 15°, large memory capacity and fast electronics, the Vulcan™ MFT 24 can sample 100 times per second.  This allows for superior profiling measurements, and enhanced depth resolution for corrosion and pitting detection. Being a slim, compact tool it can get around high doglegs, pass restrictions and log horizontal as well as vertical wells.

The tool comes in a standard temperature guise as well as the HPHT MFC version – Vulcan™ MFT 24 which is good to 428°F (220°C).

Vulcan™ MFT 40

Scientific Drilling’s Vulcan™ MFT 40 was designed and developed specifically for geothermal applications. This geothermal multi-finger caliper delivers high-precision measurements of the internal wellbore diameter, making it the ultimate casing evaluation technology at temperatures of up to 650°F. With a finger sensor every 9°, high-speed electronics, and expansive memory capacity, the Vulcan™ MFT 40 can sample 50 times per second, enabling detailed results within hours.


Scientific Drilling‘s close interval gyro survey in conjunction with caliper can analyze wellbore geometry in exceptional detail. Our software identifies relative ID restrictions for a given down hole pump diameter and length. Combination runs with our multi-finger caliper tool reduces rig time requirements, and ensures accurate wellbore ID information is available for the analysis. The interpreted data allows operators to better place and size downhole equipment to avoid subjection to additional stress.