CLSS™ Compensated Long-Spaced Sonic
Real-time Compressional Slowness Measurements
The CLSS™ tools were developed as the industry’s first sonic LWD tools in the World and has become a successful part of our service offering worldwide.
The CLSS™ collars have 2 transmitters 4 ft. above and below a 4-receiver array with 1 ft. spacings. This particular configuration provides significant measurement redundancy and the opportunity for borehole compensation. An ultrasonic transducer at the center of the receiver array measures standoff, an important quality indicator.
Two compressional slowness (Dtc) measurements are computed downhole using a Semblance Technique and are available for real-time transmission to the surface along with standoff. Full waveforms are stored in tool memory for retrieval when the tool is tripped to the surface for enhanced processing.
Technical Data Sheets
Services
- Directional Drilling
- Directional/Gamma MWD
- Gravity MWD
- Passive Ranging
- Gyro MWD
- At-Bit Inclination & Gamma Ray
- Dynamic Pressure Module
- High Pressure/High Temperature
- Resistivity
- Density/Neutron
- Sonic
- Drilling Formation Tester
- Pore Pressure
- PayZone Steering
- Real-time Communications
- Formation Evaluation
- Reliability Assurance
- Computing Center