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This tool can be used as an alternative porosity / permeability estimate tool when radioactive source tools cannot be used. The tool is used in engineering stufiies & foundation analysis, and tube-wave amplitde logs from the tool are used to delineate permeable zones. * Ability to record long wave train for Stonely wave analysis and the measurement of fracture aperature and permeabilty index. * The absolute value of the amplitude of the received waveform is measureable thus allowing for amplitude calibration. * Truly modular: other receiver and/or transmiter combinations possible up to 8 receivers and two transmitters. FEATURES: * Real-time slowness, amplitude and VDL plotting * User-defined waveform window * Full waveform analysis, including: * first arrival repicking * waveform filtering * stand-off correction * mechanical property calculations * velocity analysis * trace coherence analysis * reflected tube-wave analysis. * semblance processing * Individual waveform pair plotting * Well Completion Evaluation

Ground geophysics survey

G&DS LLC provides ground geophysical services in data acquisition, processing and interpretation. We carry out following survey methods of the ground 


Borehole geophysics survey

We carry out the borehole logging to get in-situ physical properties of surrounding formation of subsurface area with wide range of logging tools, in open and cased boreholes. 


Consulting Service

G&DS LLC provides, together with our professional partners, the consulting services for the energy, mineral exploration, environmental, geotechnical, ground water and mining investigations .


Contact us

AOS-7, Tsergiin khotkhon-1B, 2nd khoroo Bayanzurkh district, Ulaanbaatar, Mongolia

Telephone:     +976 - 7007 8008
Fax:     +976 - 7007 9009