Tracker Express

Compact Azimuthal and Propogation Resistivity Tool places your well accurately in the most productive zone

TrackerExpressis a smart resistivity tool in an 8 ft compact sub which measures azimuthal and propagation resistivity. It has a higher depth of investigation upto 10 ft, which makes it a better choice for geo-steering.  It is a recommended resistivity tool for BHA design due to its compact size. It can be used in all well types and muds.

TrackerExpressnavigates reservoirs with dip angle and lateral thickness variations toobtain accurate formation resistivity for improved reservoir characterization. It provides two phase shift and two attenuation-resistivity curves and 16 bins azimuthal resistivity.

TrackerExpressis capable of pulsing real-time resistivity data even with slow MWD telemetry of 1 bit per second. For high-resolution real time resistivity data, Compass High Speed MWD system is recommended.


Tool Size 3.5” (88.90mm) 4.75” (120.65mm) 6.75” (171.45mm)
Hole Size Range 4-1/4” to 5-1/2” 5-7/8” to 6-3/4” 8-3/8” to 10-5/8”
Length 96 in (2.44m)*
Max OD/Nominal ID 3.75”/3.5” 5.25”/5” 7.0”/6.75”
Top/Bottom Connection Customer Specified
Connection Make-up Torque 2,500 lbf-ft* 10,000 lbf-ft* 30,000 lbf-ft*
Max DLS Rotating
Max Operating Pressure 20,000 psi / 25,000 psi
Max Operating Temperature 150˚C / 175˚C
Max RPM 200
Max WOB 20,000 lbf* 50,000 lbf 100,000 lbf*
Max Sand Content <1%
Power External
Max Flow Rate 150 gpm 350 gpm 750 gpm

Read Product Highlights


Legendary MWD Systems You Can Trust

Send Message

MWD Products

LWD Products