Sigdrill’s Full-Wave Sonic Tool is a formation slowness measurement tool designed for wireline-equivalent logging while drilling (LWD) and measurements after drilling (MAD) services.
SIG-FWS-108
Sigdrill’s Full-Wave Sonic Tool is a formation slowness measurement tool designed for wireline-equivalent logging while drilling (LWD) and measurements after drilling (MAD) services. This full-waveform sonic device adds Δt (delta T) measurements to the LWD system, providing faster-than-fluid compressional wave (Δtc) and shear wave (Δts) velocity data.
Geophysicists can use Sonic sensor data to minimize uncertainty by tying time-based seismic data directly in with depth-based well log data. The rock’s mechanical properties can also be calculated using Sigdrill Sonic density data, for use in a borehole stability analysis and in the completion design of the well.
FEATURES & BENEFITS
- High-resolution data is stored in downhole memory for retrieval and processing during trips.
- Can be run in real-time MWD mode or standalone recorded data mode.
- Minimize uncertainty by tying time-based seismic data directly in with depth-based well log data.
- Full Sigdrill Control Center (SSCC) and SigdrillPlot support.
- Compatible with 3rd-party petrophysics and geophysics packages via DLIS, LAS, ASCII and WITS.
DESIGN
- Available sizes: 4.75 in. (121 mm), 6.75 in. (172 mm) and 8.0 in. (204 mm).
- Dual programmable frequency transmitters.
- Six receivers located 6.0, 6.5, 7.0, 7.5, 8.0 and 8.5 ft from transmitters.
- Fast download of waveforms recorded in a large downhole memory.