MWD Rotary Pulser

 

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

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