Positive Pulse MWD

The Positive Pulse tool is a fully-retrievable Measurement While Drilling (MWD) system that transmits data using positive pulses that increase the drilling rig's fluid pressure by constricting flow across a pulser.

 

Reliable Technology

Highest performance levels maintained with cost-effective in-house servicing and R&D.

Wireline retrievable and re-seatable design decreases the expense and lost time associated with downhole problems, if they occur.

Operates with industry standard tri-axial, magnetometer and accelerometer sensors to determine azimuth, inclination, and toolface.

Provides real-time gamma reading when operated with gamma while drilling module and even more precise readings when configured with Focused Gamma Module.

Drills in slim borehole sizes by utilizing tubulars as small as 89 mm (3").

Operating Parameters

Parameter Range
Telemetry Positive Mud Pulse
Collar Sizes 89 mm - 229 mm (3½" - 9")
Operating Flow Rate 0.25 m3/min - 4.2 m3/min (66 gpm - 1,100 gpm)
Mud Weight 900 kg/m3 - 2,150 kg/m3 (7.5 ppg - 18 ppg)
Sand Content <2%
Operating Temperature -20°C - +150°C (-4°F - +302°F)
Operating Pressure Maximum 135,000 kPa (20,000 psi)
Pressure Drop Across Tool 700 kPa @ 1.5 m3/min (100 psi @ 400 gpm)

MWD Sensor Measurement Specifications

Parameter Range Accuracy
Azimuth 0-360 Deg +/- 0.5 Deg
Inclination 0-180 Deg +/- 0.1 Deg
Toolface 0-360 Deg +/- 0.5 Deg
Magnetic Field 1-100 mT 0.075 mT
Temperature 0-200 Deg C +/- 1 Deg C