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Basement Depth
3 D plots
Technologies
Ground Radar
MASW
Seismic
Crosshole surveys
Borehole Geophysics
Electrical Resistivity Imaging (ERI)
Fast effective and proven
Typical Projects
Groundsearch are managing programs from its International Bases to diverse locations such as Mongolia, Cambodia and Africa. We will work with you to deliver the right solution wherever your project
Cost effective,
Results driven,
Locally relevant.
Adding Value
VALUE ADDING SOLUTIONS FOR INVESTIGATIONS
Rock Base and Geotechnical data from MASW
Mapping Rock head to 100m or more
Determine soil stiffness and strength directly from Geophysical Data
Liquefaction Potential
Correlate with SPT /Drill Hole and other site information
Contact Info
For general info on project management and consulting contact Grant Roberts:
Groundsearch actively involved with multiple international exploration programs in locations as diverse as Mongolia, Cambodia and Africa, as well as operations throughout New Zealand.
We have a diverse set of capabilities, and a strong base of experience in Asia and surrounds.
Grant is a qualified person to report to ASX and TSX stock exchanges. He has sign off against JORC (Australia) amd 43101 (Canada) -- we can provide more details on request
Mapping of geology and geological targets
Analyse airborne data and develop targets
Stream sediment survey design
Pan concentrates
Design of Geochemical programs
Mapping and data collection
Project generation and consulting
Greenfield/Brownfield program design
Auger, Trenching and Pitting and follow up ground geophysics
Detailed surveys and drill target generation / resource definition
Data integration
Plan
Exploration drilling
Financial evaluation
Pit design
To achieve this Groundsearch uses state-of-the-art technologies, experienced senior exploration staff and in-country knowledge. This means projects that are cost effective, results driven, and locally relevant. We will work with you to deliver the right solution wherever your project may be.
With the backing of our established experience in exploration projects throughout New Zealand, Australia, Asia and the Pacific, Groundsearch can manage exploration programs effectively and efficiently.
Ground selection - Acquisition of licenses
Design and execution of field programs from startup through to resource measurement,
Management of the projects to international standards
Reporting compliant with JORC to Australian Stock exchange and 43-101 Canadian Stock exchange
To discuss what we can do for your project contact Principal Geological Analyst Grant Roberts (grant@groundsearch.biz or +855 10 863111/ +64 21 710922).
Borehole geophysics has proven to be an indispensable tool for our clients in coal exploration, mineral mining, coal seam gas exploration and scientific research to name just a few. It is an incredible value-adding tool to confirm target depths, characterise overburden, assess dipping angles and much, much more.
Groundsearch uses state of the art combination tools from Century Geophysical Corporation to maximise the information gathered from the hole, while maintaining usability and the convenience to transport the equipment to operate from nearly anywhere (and over the years our clients have occasionally pushed this “anywhere” claim to extremes! – See “Our Projects”) Our most popular tools are listed here, but we can get in a tool to suit almost any endeavour very quickly.
With the backing of a huge amount of experience in exploration projects all over NZ, and a comprehensive support structure, we can manage your borehole geophysics effectively and efficiently. Email us for more information.
Borehole Tools
9239 Dual Density Sonde – Coal Combination Tool
The Series 9239, Compensated Density logging tool uses the two focused density detectors to compute borehole compensated density real time while logging. No post processing required to produce CDL bulk density. Additionally, the tool also records natural gamma, caliper , medium guard resistivity, and borehole temperature.
The 9239 is a very well proven, diverse and reliable tool which is ideally suited for coal exploration as well as a variety of other applications. It delineates coal seams with fantastic accuracy, and can operate inside or outside the water column, and even inside or outside drill rods or casing.
Acoustic Scanner
The Acoustic Televiewer takes an oriented “picture” of the borehole using high-resolution sound waves. This acoustic picture is displayed in both amplitude and travel time. This information is used to detect bedding planes, fractures, and other hole anomalies without the need to have clear fluid filling the boreholes.
The televiewer digitizes 256 measurements around the borehole at each high-resolution sample interval (.005 meters/.02 feet). This data is oriented to North and displayed real-time while logging using the Visual Compu-Log software. Analysis includes color adjustment, fracture dip and strike determination, and classification of anomaly. It allows information to be displayed on the graphical screen, plot, and in report format. Optionally, the tool can be equipped with a natural gamma sensor.
Full Wave Sonic
The Full Wave Sonic tool contains a single transmitter and dual receiver to record formation travel times. The full wave form data is also recorded simultaneously, along with near and far travel times, borehole-compensated delta time, calculated sonic porosity, receiver gains, near/far amplitudes and natural gamma. The sonic or acoustic log uses the basic principle of sound waves traveling through a media. The Century sonic system uses a single transmitter and dual receiver system for recording the travel times of the formation. The receivers are spaced approximately 2 and 3 feet, from the transmitter. Therefore, a 0.3 m (1 ft.) calculation can be made to measure this interval transit time.
9410 Dipmeter
The Dipmeter tool is a formation strike and dip directional probe primarily used in mining and environmental logging applications. Additionally, the tool also records natural gamma, X-Y calipers, and borehole deviation is computed from the slant angle and bearing measurements calculated from the inclinometer and magnetometer sensors. To ensure accurate strike and dip measurements in small-diameter holes, special care should be taken when calibrating the calipers to maximize their accuracy.The image to the right shows a set of dipmeter data with “tadpoles” giving dip and dip direction of the bedding structures. The bed boundary is picked from the current logs. The boundary is then cross-correlated between each pad data and merged to give the dip of the best “plane ” through this data.
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