Borehole imaging probes are now a common service provided in boreholes drilled for mineral exploration, geotechnical investigations and groundwater programs. The major mineral borehole imaging methods are: Acoustic imaging: requires a fluid filled borehole Optical imaging: need to be able to see the borehole wall (air or clear fluid) Both methods are commonly requested on […]
Borehole P-S Seismic Suspension Logging
Ever wanted accurate compressional and shear wave arrival times in uncompacted near surface sediments? The borehole P-S seismic suspension logging probe has been designed for this purpose and can provide these measurements from inside PVC casing. By themselves, the compressional and shear wave arrivals time may not seem important properties but together and with density […]
Borehole Imaging – Acoustic Scanner
Full image coverage of a borehole wall – the acoustic scanner probe. The acoustic scanner, also known as the acoustic televiewer, uses high frequency sound wave echoes together with magnetometers and accelerometers to provide an orientated travel time and amplitude image of the borehole wall. Principal features Identifies and orientates (measures the dip angle and […]
Borehole Flowmeters
There are several types of flowmeter probes available to identify, measure and quantify the flow of groundwater in a borehole. Such data will provide important insights into the local hydrogeology which includes: • Source of groundwater flow in a borehole. • “Thief zones” where groundwater is being lost from a borehole. • Measure and quantify […]
Porosity Measurement
A simple definition of porosity or the amount of pore space is the volume of space within a rock which can be occupied by gas (air) or a fluid (water, oil). Measuring the porosity of a rock will give an indication of its storage potential for groundwater, oil or gas. An important quantity for investment […]
Geological versus geophysical borehole sampling
The geologist is interested in collating and understanding all data which originates from a borehole. The data may be in the following forms: Geological samples Cylindrical core samples from an interval of the borehole or the whole borehole. Chip samples from the borehole. Geophysical samples Geophysical borehole logs (remotely collected data from […]
Could borehole geophysical logging help unlock the mystery of Clovelly Park’s pollution plume?
This is a hot topic in Adelaide at the moment where several polluted sites in and around Clovelly Park are under investigation. Most are associated with previous heavy manufacturing industries which have since moved on. However, the pollution plume is now affecting surrounding residential areas. Identifying and mapping the geology of Clovelly Park Our gamma […]
Welcome to our blog
Welcome to the Wireline Borehole blog. We will be bringing you stories and pictures from our work across Australia and around the world. It will give you greater insights into our industry and the work we carry out. Of course, one of the things we can offer through this blog is a glimpse into the […]
