Refine by
Borehole Geophysics Articles & Analysis
13 articles found
Vista Clara is pleased to play a key role in the comprehensive East River Experimental Watershed study conducted near Crested Butte, Colorado by providing advanced NMR geophysical investigation capabilities, including GMR™ non-invasive NMR surface measurement, along with both Javelin® and Dart™ portable NMR borehole logging. ...
The IWVDA contracted Stanford University to demonstrate the capabilities of surface and borehole geophysics as a cost-effective means to provide data for digital aquifer models of the ...
The geophysical methods included: 2-dimensional electrical resistivity imaging survey (2-D ERI) and borehole geophysical logging. ...
Potable water in the Zululand coastal plain, Sodwana, South Africa can be enhanced by: (i) providing detailed information on the aquifer system using geophysics; (ii) providing information on groundwater quality and its efficient use; (iii) providing low-cost/low technology local drillers with light-weight, manoeuvrable rigs with trained teams for drilling of 6-inch diameter ...
Featuring a robust design and greater depth capacity, the TruShot survey tool will form the foundation to add geophysical sensors that can be run by drillers. It will provide traditional survey measurements but with increased memory and processing to support other sensors. TruProbe will combine the TruShot survey with a total gamma tool, the first in a line of sensors to measure ...
Surface borehole method can be used to effectively maximise the value of existing boreholes. This is because surface-boreholre method can give operator more geological and geophysical information around the borehole. For example, we did a surface-borehole survey, where there was already well-known ...
The state geologic map, available borehole geophysical logs, water well drillers logs, soil map on or near the surface (SSURGO), land use/land cover data and recent light detection and ranging (LIDAR) data are investigated and found to be useful to delineate aquifer recharge areas. ...
GeoView can assist in these situations by performing a private utility locate and marking the utilities within a 3 to 5 foot radius of each proposed borehole. The geophysical investigation is conducted using ground penetrating radar (GPR) and electronic utility locate (EUL) equipment. ...
Corozal, Puerto Rico GeoView was tasked to conduct borehole geophysical logging of at a groundwater extraction well in the rural area of the Municipality of Corozal, Puerto Rico. ...
This is a collection of various cases where the 2D resistivity imaging method pioneered by Advanced Geosciences Inc have been successfully applied. Click on a section below and you will be shown a full 2D resistivity imaging brochure detailing the case in question. Acknowledgement: These cases have been submitted by satisfied customers whom we thank for permission to publish ...
Vertical profiling of fracture network, hydraulic properties and solute distributions The spatial distribution and properties of the fracture network (type, aperture, intensity and orientation) were measured using undisturbed rock core and downhole geophysical logging of monitoring boreholes prior to the installation of the MLS. ...
This includes historical as well as detailed soil and geologic logs which accumulate during the site investigation. The use of borehole geophysical techniques are also recommended. With this information (together with other site characterization data) and a clear understanding of sampling objectives, then appropriate location, screen length, well diameter, slot ...
After each borehole was completed, the diameter was tested using a down-hole dummy (74.6mm/2.94' diameter). Geophysical logging of the borehole was not done due to concern regarding the degree of competence of the shale comprising the majority of the open portion of the borehole. ...