sonicVISION Sonic LWD

Sonic While Drilling

sonicVISION sonic-while-drilling tool enables you to drill safely and efficiently with unparalleled, real-time velocity measurements in hole sizes up to 30 in with 6 3/4-, 8 1/4-, and 9-in collars.

sonicVISION HT services have a proven track record for high-temperature operations around the world. Our suite of best-in-class HT technology and high-temperature-certified engineers includes products and services for directional drilling, MWD, and LWD. See the HT suite

sonicVISION service improves real-time measurements with a

• real-time projection log
• real-time surface labeling and quality control (QC) log
• pumps-off station measurement
• wideband measurement
• wideband high-power transmitter.

Taking advantage of our TeleScope MWD high-speed telemetry system, sonicVISION service delivers full slowness time (ST) projections to surface. This technology offers you real-time compressional (DTc) and shear measurements (DTs) with a full slowness projection log delivered while drilling at the rig site or office through the InterACT monitoring and data delivery system.

Additional QC is provided with automatic station measurements during a connection. In this noise-free environment, the tool takes a check measurement that is sent uphole when pumping resumes. This further QCs the real-time log.

These reliable, quality velocity measurements let you

• optimize mud-weight selection
• predict pore pressure independent of temperature and salinity effect
• identify top-of-cement
• understand rock mechanical properties
• measure porosity sourceless
• position bit-on-seismic using synthetics
• identify gas influx or formation gas
• perform many other standard sonic applications.

Other features

• Additional downlinks for full parameterization of downhole acquisition parameters while drilling
• High-speed record rate of up to one sample per second that lets you log at 1,800 ft/h with 6-in sampling
• Enhanced battery life
• Memory duration of 280 h up to 180 ft/h
• Improved collar attenuator for cleaner waveforms for better postprocessing

Robust surface-labeled shear measurements can be used quantitatively for rock mechanics assessment, sanding analysis for production design, fracture design, gas detection, amplitude variation with offset (AVO) analysis, and fluid-independent pore pressure estimation.