Earth Resistivity Monitoring Articles

  • VanTran Builds for Midstream User in Port Arthur, TX!

    Two weeks ago these two substation transformers left our factory for Port Arthur, TX. The 1500 kVA was built with a Neutral Grounding Resistor and the 500 kVA with a High Resistance Ground Pulsing Resistor with Ammeter, as well as numerous other accessories on each including NEMA 4X control cabinets, Nitrogen Preservation Systems, and Galvanized Rigid Conduit. Built for midstream provider Howard ...


    By VanTran Industries, Inc

  • 2D Resistivity Imaging for Locating Concrete Pipe - Case Study

    Background There are 8 wells that suply water to the communnity through about 2m diamter concrete aqueduct.  Purpose The main subject of the field tes was to determine the geotechnical site characterization of the area to correlate the results obtained through the 2D resistivity imaging and the infromation of the concrete ...


    By Advanced Geosciences, Inc.

  • 3D Offshore Imaging for Seawater Intake for Desalination Plants - Case Study

    AGI’s Multi-Electrode Switch Box is an accessory to the SuperSting Wi-Fi. It allows the SuperSting Wi-Fi to automatically ...


    By Advanced Geosciences, Inc.

  • 2D and 3D Gold Exploration in Burkina Faso - Case Study

    Background The Salma premise is located in western Burkina Faso within the Boromo Birimian greenstone belt which trends NS. Supracrustal rocks of the district are composed of mafic to intermediate calc-alkaline volcanic series including voluminous basalt and andesite with pyroclastic flows and tuff.  In detail, this permit occurs in the ...


    By Advanced Geosciences, Inc.

  • Using Resistivity for Basalt Site Characterization - Case Study

    Purpose A mining company in Turkey hoped to determine existing and new alternative basalt zones at an existing basalt mining site by using Electrical Resistivity Imaging (ERI). Process Our client, Ali Karan, used 84 electrodes spaced at 10 meters and two lines 5 meters apart inside the study ...


    By Advanced Geosciences, Inc.

  • Searching for Potential Unmarked Graves Near San Antonio, Texas - Case Study

    Our client, Terracon, used AGI tools and software in order to identify whether or not there were unmarked graves near a family cemetery and a known historical site for homesteaders near San Antonio, Texas. Process Our client was interested in mapping an area being developed near a cemetery that dated back to 1899. The client used the ...


    By Advanced Geosciences, Inc.

  • Satellite Shelters, Inc. in San Antonio Grand Opening

    On Thursday, May 18th, 2017, Satellite Shelters, Inc. celebrated the grand opening of their new branch office and yard services location in Converse, TX that will service the San Antonio, TX market. This is one of the newest locations in the Satellite Shelters chain and replaces the New Braunfels, TX location. The employees are excited to be in a new, upgraded facility that ...


    By Satellite Shelters, Inc.

  • Identification of Archeological Remnants

    Czorsztyn Castle, Poland 2D Electrical Imaging Objective Study area was within the ruins of the 14th century Czorsztyn Castle, located in the boundaries of Pieniny National Park (southern Poland). The main goal of this research was to check if one of the stone wall residues continues under the ground surface. Additionally, an attempt was ...


    By Advanced Geosciences, Inc.

  • Cave Detection: Testing the Industry’s First Electrical Resistivity Imaging Instrument - Case Study

    AGI first tested the Sting—the predecessor to the SuperSting instrument—in October 1994. This data set began the electrical resistivity imaging industry. Background In 1993, the Sting instrument was created—but ...


    By Advanced Geosciences, Inc.

  • Case Study - Mapping Gold Deposits with Induced Polarization Surveys, Yukon, Canada

    Site:  Rockhaven Resources Ltd. Klaza property in Yukon Territory, Canada Equipment:  SuperStingR8 with AGI 84 electrode passive electrical imaging cable, 5 meter electrode spacing, inverse schlumberger array, boost mode(200W output), Direct Samples:  Reverse circulation drilling and geochemical analysis of core samples. Results:  SuperStingR8 induced ...


    By Advanced Geosciences, Inc.

  • Panama Canal: Boat Towed 3D Resistivity Surveys - Case Study

    The Panama Canal Authority (ACP) needed to expand the canal in order to accommodate larger ships (and more traffic)—but first, they needed to know two things: what types of sediment loads needed to be dredged out—and more importantly—how much these loads would cost. That’s where AGI marine resistivity imaging ...


    By Advanced Geosciences, Inc.

  • Potential soil characteristics for riverbank filtration using 2-D ground resistivity in Kota Lama Kiri, Kuala Kangsar

    Identifying the subsurface profile for riverbank/bed filtration (RBF) using conventional methods such as drilled boreholes is usually labor intensive, costly and acquires only 1-D profiling. Hence, a 2-D ground resistivity method was used as an alternative to obtain a 2-D subsurface profile by extending to 200 m length at Kota Lama Kiri, Kuala Kangsar, Perak site area. Four resistivity survey ...


    By IWA Publishing

  • Scanning for Leaks & Sinkhole Detection in a Retention Pond - Case Study

    In January 2015, one of our clients used AGI tools and software for leak and sinkhole detection in the liner of a retention pond in Tennessee. Process Our client’s customer had a retention pond that was designed to hold liquid, but it was leaking through a hole in the liner. The client used the ...


    By Advanced Geosciences, Inc.

  • Compare active and passive cables

    Active cables refer to the cable with electronic part in the cable. Control and ADC in resistivity system controls the electronic parts in the cable, which controls the current injection. Passive cables refer to the cable with no electronic part in the cable. One of the advantage of passive cables is its ability to borehole and marine surveys, operator can put passive cables in water. Putting ...

  • Resistivity system voltage output

    One limit of FlashRES resistivity meter is its voltage output. It can output maximum voltage of 350v, this is because the multi-core cable of the FlashRES cannot withstand voltage over 350v. the multi-core cable contains 32 small wires, voltage higher than 350v will damage these wires and make the cable short circuit. We thus limit the maximum voltage output for safety reasons. Reference ...

  • The suitable battery for FlashRES resistivity meter

    Air freight battery pack is extremely diffculty in Australia, this makes installing internal battery to FlashRES resistivity meter counter-productive for ZZ. We thus use an external battery and connect it with our system. The correct external battery for our system should be a 12 volt truck/car battery of ≥ 90 Amp/hr is needed. Reference ...

  • The exploration depth of FlashRES resistivity meter

    The formula for calculating the maximum depth is universal for all resistivity meters. The exploration depth depends on the survey line length. the survey depth is usually 20-25% of the survey line total length. For example, for 10m takeout cables, the total length of the cable is 10m*63=630m and this means the exploration depth is 0.2*630m to 0.25*630m. The resolution is 10% of ...

  • IP data collection

    FlashRES resistivity meter collects 4*N voltages for each AB current injection. When operator sets the instrument collect IP data, the system will default the on time equals to the off time. ZZ finds sometime operators need customise their IP windows, thus FlashRES records all the data and this enables operators to form their own IP windows data with their own window size criteria. ...

  • Full waveform data display

    FlashRES resistivity meter displays full current and voltage data when the system is collecting these data. The real time read out of the data effectively helps operator to monitor the data quality. In case the data quality Q factor drops in value, the operator can pause the data collection process and check the background, contact and instrument noise. Displa full waveforms thus protect ...

  • Compare popular resistivity meters with FlashRES

    Although most resistivity meters nowadays can collect resistivity, IP and SP data and most of these systems are multi-channal resistivity meters, there is still a technical gap between traditional and next generation resistivity meters. FlashRES has six to 8 times more channel than traditional system, this means larger data quantity, which could help the resistivity inversion image ...

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