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tomography (Subsurface Monitoring) services

  • Seismic Refraction Tomography

    Refraction tomography bases on the classic seismic refraction studies. Classical refraction gives good results in the ground with relatively low variable structure and layers (which differ significantly in velocities of seismic waves). In contrast, tomography can localize more complex structures where seismic wave velocities change in different ...

    By GEOSPECTRUM S.C. based in Krakow, POLAND. from Seismic Refraction Tomography Service line

  • Resistivity Surveys by Tomography Technique

    Electrical resistivity tomography ERT is also known as resistivity imaging. This method is combination of electrical sounding and profiling because surveys are done along the profile and with increasing depth of investigation.

    By GEOSPECTRUM S.C. based in Krakow, POLAND. from Resistivity Surveys by Tomography Technique Service line

  • Passive Seismic Tomography Services

    Passive Seismic Tomography is the gem in our exploration toolbox. A methodology originating from regional seismology, downscaled after years of experience at an exploration level.  Easily applicable, cost effective and environmentally friendly, it is a robust exploration alternative in cases where conventional practices wouldn’t be an ...

    By SeismoTech Ltd based in Athens, GREECE.

  • Passive Seismic Tomography (PST) Services

    Passive Seismic Tomography (PST) is a new revolutionary geophysical exploration technique utilizing the natural microseismicity, (microearthquakes with magnitudes of -1 up to 2.0 Richter) which occur almost everywhere, as seismic sources and a portable specially designed network of seismometers on the surface to record continuously for a period of ...

    By Landtech Geophysics Ltd based in Cardiff, UNITED KINGDOM.

  • Geoelectrical Resistivity Surveys

    Field techniques: Resistivity drilling and mapping (including water covered terrain), 2D-geoelectrics and 3D-geoelectrics, Geoelectric tomography, Resistivity logging, Mise à la masse, Geoelectric tracer tests.

    By Geophysik GGD mbH based in Leipzig, GERMANY. from Geoelectrical Resistivity Surveys Service line

  • Gravity Surveys Services

    An alternative non-seismic methodology, applied both in cases of tectonically inactive areas and in the cases where we aim in further constraining Passive Seismic Tomography data, using additional geophysical parameters.

    By SeismoTech Ltd based in Athens, GREECE.

  • Resistivity Methods

    Electrical or galvanic methods allow investigating the underground distribution of the resistivity parameter. TRX, since over 20 years , applies either tetraelectrodic arrays in the Vertical Electric Sounding mode (VES) and multielectrodic arrays for the execution of Electrical Resistivity Tomography (ERT).

    By TRX Consulting C.A. based in Sabana Grande, VENEZUELA.

  • Magnetotelluric Surveys Services

    Another useful tool, part of our exploration toolbox, applied – like gravity surveys – as an alternative non-seismic methodology. Marshaled both in cases of tectonically inactive areas and in the cases where the target is to further constrain Passive Seismic Tomography data, using additional geophysical parameters.

    By SeismoTech Ltd based in Athens, GREECE.

  • Minerals Exploration Services

    PBG Ltd. has over 50-year experience in minerals prospecting with the use of geophysical methods. We offer range of geophysical techniques adequate for ore minerals prospecting both for reconnaissance surveys and recognition of mineral deposit: magnetotelluric survey AMT/CSAMT, gravity survey, magnetic survey, geo-electrical measurements ...

    By PBG Geophysical Exploration Ltd. based in Warsaw, POLAND. from Minerals Exploration Services Service line

  • Resistivity Studies

    Geophysical studies using resistivity method are based on the determination of electrical resistance changes of the ground. These changes are natural (geological) or anthropogenic, and have a resistance different from the surrounding ground.

    By GEOSPECTRUM S.C. based in Krakow, POLAND. from Resistivity Studies Service line

  • Resistivity Surveys

    Geophysical surveys, which use geoelectrical methods base on the variation of electrical parameters of the soil. To understand the phenomena in ground-rock medium, in which electric current flows, it must be realized that such substrate resists while electric current flows through it. According to Ohm's Law, resistance R is directly proportional ...

    By GEOSPECTRUM S.C. based in Krakow, POLAND. from Resistivity Surveys Service line

  • Routine Core Analysis Services

    Routine Core Analysis provides geologists and engineers with their first 'hard data' related to the downhole environment. PTS Labs recognizes this value and strives to deliver the highest quality routine measurements.

    By PTS Laboratories, Inc. based in Santa Fe Springs, CALIFORNIA (USA). from Routine Core Analysis Services Service line

  • Subsurface Utility Engineering

    GEL Geophysics is proud of our track record in providing challenging Subsurface Utility Engineering (SUE) solutions. We help our clients avoid service interruptions, project delays and possible catastrophe due to unexpected encounters with buried utilities and other infrastructure. Our goal is simple: solve complex underground mapping issues with ...

    By GEL Engineering LLC based in Charleston, SOUTH CAROLINA (USA). from Subsurface Utility Engineering Service line

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