Ultra-reliable, high-efficiency DC brushless motor and controller, single open-flow path.
Positive pulse output and anti-jamming control virtually eliminates all jamming or blockage during the run.
MWD Rotary Pulser Specifications
Signal Transmission: Positive mud pulse
Pulse Height: Adjustable
Activation: Electromechanical
Operating Voltage: 28 - 40 VDC
Pulser Sub O.D.: 8.25 / 8 / 6.75 / 6.25 / 4.75 inch
Flow Ranges: 241 mm or larger – 41 to 76 L/sec
203 mm – 19 to 69 L/sec
159 to 171 mm – 9 to 47 L/sec
121 mm – 7.9 to 22 L/sec
79 & 89 mm – 4 to 16 L/sec
Sand Content: < 1% by volume recommended, 3% by volume max
LCM Tolerance: 50 lb./bbl medium nut plug (143 kg/m3 medium nut plug)
Operating Temperature: 150˚C; 175˚C option
Maximum Pressure: 138 MPa; 172 MPa option
Differential Pressure: No requirement
Dogleg Capability: API connection limited