SureLog-FWS

LWD Full-Wave Sonic Tool

Lower cost by replacing wireline logging

LWD Full-Wave Sonic Tool

APS’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 “Triple Combo” 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 APS Sonic density data, for use in a borehole stability analysis and in the completion design of the well.

Geophysicists can use APS Sonic sensor data to minimize uncertainty
by tying time-based seismic data directly in with depth-based well log data.

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 SureShot™ Control Center (SSCC™) and APSPlot™ support.
  • Compatible with 3rd-party petrophysics and geophysics packages via DLIS, LAS, ASCII and WITS.
Download the SureLog-FWS™ Presentation

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.
Man Working

Applications

  • Developing “insurance” formation evaluation logs during the drilling process
  • Borehole stability analysis and well completion design
  • Seismic tie-in
  • Pore pressure trendline analysis
  • Measurement after drilling logging operations

Tool Specifications

SureLog-FWS Technical Data Sheet

General Specifications

General Specifications
Diameter4.75 in. (121 mm), 6.75 in. ( 172 mm) and 8.0 in. (204 mm)
Measurement Range40-189 µsec/ft
Accuracy±1 µsec/ft
Precision1/2 µsec/ft
Vertical Resolution3 ft
Recording Time200 hours
Environmental
Operating Temperature32˚ to 302˚F (0˚ to 150˚C); 347˚F (175˚C) option
Maximum Pressure20,000 psi (137.9 MPa)

SureLog FWS-475 Mechanical Specifications

General Specifications
Diameter4.75 in. (121 mm)
Length17.3 ft (5.28 m)
Measurement Range40-189 µsec/ft
Accuracy±1 µsec/ft
Precision1/2 µsec/ft
Vertical Resolution3 ft
Recording Time200 hours
Environmental
Operating Temperature32˚ to 302˚F (0˚ to 150˚C); 347˚F (175˚C) option
Maximum Pressure20,000 psi (137.9 MPa)

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