BEI Kimco Magnetics says it has developed a motor to meet the challenging requirements for a Down Hole Measurement While Drilling (MWD) application.
According to BEI Kimco, oil companies are increasingly drilling deeper than before to obtain valuable deposits. As a result components within a drill tool must deliver reliable operation at extreme ambient temperatures.
The company claims the key to the down hole tool string design is a motor which is capable of extended operation at elevated winding temperatures of up to 220°C and pressures approaching 30,000PSI. The motor is used to position a sensor which will take measurements of the materials encountered during the oil exploration operations.
To meet the manufacturer’s requirements, BEI Kimco developed a high performance motor measuring 3.0” in diameter x 8.5” in length with a custom housing and dual shafts for gearbox and resolver mounting.
The motor is also designed to operate while filled with oil to compensate for the high pressures.