borehole data Articles

  • Borehole Log Interpretation

    While employed with Conoco, Inc. analyzed and correlated well-log data in order to produce geologic structural maps of subsurface horizons in Louisiana and Oklahoma, for the purpose of oil and gas prospect generation. Analyzed and correlated well-log data in order to map the top of a highly permeable subsurface formation that was utilized as an injection zone for the disposal of brines generated ...


    By ECA Geophysics

  • Waterquality in irrigation canals and boreholes - Greece

    Background Kavala is located in the North East of Greece, 680 km from the capital Athens. The population of the prefecture of Kavala is around 85,000 people. The River Nestos which flows through this prefecture is very important for the agriculture of the area. To allow for a fair distribution of the water for irrigation purposes, a number of Boreholes and canals have been established. The ...


    By OTT HydroMet

  • A Monte Carlo Investigation of a Proposed Screen for NX-Borehole Jack Data

    Heuze has submitted a draft standard guide to the ASTM Subcommittee D18.12 on Rocks and Soils for using the NX-borehole (“Goodman”) jack and calculating the in-situ deformation modulus of rock masses. One aspect of the proposed standard is a “data screen” based on a full platen seating criterion. This article describes a computer simulation study that was performed to test the effect of the ...


    By ASTM International

  • Effects of Borehole Fluid on Standard Penetration Test Results

    The standard penetration test (SPT) represents the most widely used in-situ test method for evaluating the liquefaction resistance of saturated soils. Significant progress has been made in recent years in developing correlations between SPT results obtained using different test procedures and equipment in order to develop a higher degree of standardization for SPT testing. One of the heretofore ...


    By ASTM International

  • Isolate & sample up to 7 zones in one borehole

    CMT Multilevel Systems isolate and monitor up to seven discrete zones in one borehole; monitor 7 zones in the 1.7" (43 mm) System; 3 in the narrow 1.1" (28 mm) System. Both options are low cost. The single tube design makes them fast and easy to drill and install in one day. System flexibility allows port locations and monitoring strategy to be finalized right on site. CMT wells are ideal for ...


    By Solinst Canada Ltd.

  • Hydrometric Network Data Management

    A key part of HL's contract with Dwr Cymru Welsh Water to install, operate and maintain a large network of telemetred reservoir level and compensation flow gauges, a suite of HL's software packages was also supplied to each of the three operational areas for managing time-series data and processing stage-discharge data into a long-term flow record archive. HL's HydroLog4 and Gauger 2 packages ...

  • GPS-enabled gas analyser finds & proves borehole locations case study

    Prove it? They can now! Landfill technicians and environmental consultants can now find and prove borehole locations with a GPS-enhanced portable gas analyser from Geotech. Its on-board GPS guidance system takes staff to the precise location of the 1000 it can store. It adds the GPS-received location, date and time to the gas analysis record. GPS locations can be added at boreholes or pre-loaded ...

  • Deployment of a Deep Borehole Observatory at the High Lake Project Site, Nunavut, Canada

    Abstract We deployed a deep permafrost observatory in a borehole at the High Lake Project Site (67°22'N, 1I0°50>W), Nunavut, Canada with the aims of (1) investigating the physical and chemical limitations on microbial life within such environments, (2) developing life-detecting technologies for the exploration of life on Mars and (3) constraining the hydrological and thermal ...


    By In-Situ, Inc.

  • Environmental Data Management for Groundwater Contamination

    ESdat environmental data management software has been used to manage and report on large datasets generated from an investigation of groundwater contamination on an industrial facility in Adelaide. ESdat was used in managing site data and the maintenance of conceptual model and time series outputs at a complex site over an extended period. Leakages of TCE and the subsequent ...

  • Bridge/tunnel base exploration case study

    Case 1 A surface-borehole resistivity survey completed for bridge construction As shown infigure 1, this surface-borehole survey was configured to accurately locate known caves for structural reasons. The operator collected 60k data points in only one hour as a result of how the FlashRES-UNIVERSAL can collect all voltage readings for each combination of current electrodes. Figure 2 shows that the ...

  • The use of the Pareto distribution for fracture transmissivity assessment

    For many applications data on the transmissivity distribution of individual fractures are necessary, i.e., discrete fracture network (DFN) modelling of groundwater flow and transport of solutes in fractured rock and design and performance of rock grouting. Using borehole data from the Äspö Hard Rock Laboratory, Sweden, it is shown that evaluated fracture transmissivities from three boreholes at ...


    By Springer

  • NEW GROUNDERWATER REPORT PREPARED FOR KALGOORLIE CONSOLIDATED GOLD MINES(KCGM) IN WESTERN AUSTRALIA

    For many of our clients the impact of water abstraction and use is an element of their operation which requires long term monitoring and analysis. Results are often compared to baseline data so that impact of operations can be understood and, if necessary, modified. This is frequently an arduous task with some of our clients having more than a 100 boreholes which are regularly monitored. This ...


    By EHS Data Limited

  • Integration of Subsurface Data Management and GIS to Facilitate Model Calibration

    Abstract The development of numerical codes, as well as pre- and post-processors to support these codes, has made the discipline of groundwater modelling increasingly more automated and efficient. The value of such modelling is reliant on the site-specific data used to build and calibrate the models. The integration of EarthSoft's EQuISÒ Geology and any of several popular modelling environments ...


    By EarthSoft, Inc

  • Landfill site improvement condition for PPC permit

    The installation is a landfill site licensed for the disposal of inert waste. It lies in a potentially sensitive location on the flood plain of the River Great Ouse, near Milton Keynes and it is therefore important to the client to ensure good environmental monitoring is undertaken. The site is divided into two sections, (the north western area and the south eastern area) by the River Great Ouse, ...


    By ESI Consulting Ltd

  • Coliform status of water bodies from two districts in Ghana, west Africa: implications for rural water resources management

    Investigations were conducted on the total and faecal coliform status of streams, hand-dug wells and boreholes highly patronised by communities in the West Akim and Kwaebibirem Districts, Eastern Ghana. Total coliform values obtained range from 60–2,672 cfu, 0–680 cfu and 0–128 cfu for streams, hand-dug wells and boreholes, respectively. Faecal coliform values similarly range from 31–1,988 cfu, ...


    By IWA Publishing

  • An environmentally–friendly integrated seismic imaging for coal exploration in the Miocene Soma Basin, Western Turkey

    Seismic reflection data from target depths of several hundred metres have been acquired and processed as an aid for lignite exploration in the Miocene Soma Basin, western Turkey. An environmentally–friendly approach was followed by acquiring the data with mini–vibroseisseismic source along crooked lines, using available mountain/forest and village roads; quality control tests were conducted to ...


    By Inderscience Publishers

  • Portable Remotely Operated Drill (PROD): Hydrocarbon Sensing System

    Proven Technology Benthic’s prototype Hydrocarbon Sensing System (HSS) analyses drill returns for the presence of hydrocarbons as they pass through PROD before being vented on the seafloor. The System, in its present form, includes two hydrocarbon sensors in line with the drill returns path. Drill returns, composed of seawater drawn from above PROD and pumped down the drill ...


    By Franatech GmbH

  • Channel Tunnel rail link - groundwater model of the basal sands and chalk

    ESI used a groundwater model of the basal Sands and Chalk underlying central London to assess the dewatering impacts of tunnelling as part of the construction of the Channel Tunnel Rail Link (CTRL). A number of boreholes were to be installed for dewatering purposes whilst the tunnel was being driven.  Due to access constraints, the selection of borehole locations was difficult.  The ...


    By ESI Consulting Ltd

  • Feasibility study for ground source energy system at Parklands, Bristol

    WCR Investments Limited (WCR) appointed ESI Ltd to undertake an options appraisal for the installation of a carbon efficient and cost effective heating/cooling system for some new commercial office spaces that are being developed at the Parklands Site, Bristol. The main objectives were to assess the technical and economic feasibility of a Ground Source Energy system, based on an understanding of ...


    By ESI Consulting Ltd

  • Above Watertable Landfill (Groundwater Risk Assessment)

    Client: Waste Management Industry Location: Co-disposal landfill site Services: Hydrogeological risk assessment, landfill monitoring borehole installation, sample collection and data interpretation. Issues: Change in waste stream and potential risk to groundwater,  Summary: ESI provided site ...


    By ESI Consulting Ltd

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