X-Dipole Logging Tool
GOWell’s X-Dipole Logging Tool is an array acoustic tool with monopole, dipole and cross-dipole acquisition capabilities. The tool is essential for collecting a full range of acoustic datasets, which contribute to petrophysical evaluation and geophysical applications.
The X-Dipole Sonic Tool is composed of four (4) main parts:
- Electronics section
- Receiver section
- Acoustic isolator
- Transmitter section
The tool has four (4) separate broadband acoustic transmitters—one monopole, two dipole and one stoneley transmitter. The monopole output is optimized for compressional and refracted shear measurements; whereas, the stoneley transmiter is a unique design optimized for low frequency stoneley excitation. The two dipole transmittersare co-located and optimized to maximize output energy for slow, soft rock formations.
Features
- Combinable with other Gallop tools
- Records the waveform of the reflected value from formations
- Transmitter section assembled with PEEK sleeves for increased reliability and lower maintenance required
- Ten independently linked assemblies in the isolator section are included to better attenuate the tool body signal, maintain alignment and provide increased tension & compressive strength
- Three programmable operating modesavailable:
- Mode 1: Fast Logging
- Mode 2: Non-anisothropy
- Mode 3: Full waveform
Applications
- Gas zone detection (Vp/Vs)
- Fracture identification (Stoneley)
- Permeability estimation (Stoneley)
- Shear Sonic Anisotropy assessment
- Formation porosity
- Measurement of compressional and shear waves in open or cased-hole
- Synthetic Seismograms
- Lithology and clay identification
- Advanced Geomechanics
