Water Bore Surveys

Casing deterioration resulting from clogging and corrosion can be measured with geophysics and displayed electronically in windows formats for accurate and exact measurements. These tools indicate the condition especially of aged steel wells as commonly established throughout Australian regions.

1. Casing condition surveys indicate age and breaks in casingailable on request

2. Bore fouling amounts can be measured

3. Groundwater zones and definition of aquifer depths determined

Geophysics is useful in understanding borehole conditions that can't be viewed with CCTV or analysed from water sampling.

Deteriorated zones can be sealed or patched or even full bore relines can be inset to save replacements from new bores using this geophysic tool.

We carry Auslog geophysical tools gamma, caliper tools and source all other tool requirements.

The new 8 arm caliper tool alllows highly accurate measurements to determine inner bore diameter measurements which detail the build up of bore fouling and incrustation.

Gamma surveys also are commonly used to survey unlogged bores and to understand depth and presence of aquifer zones useful in reline bores and assessing drilling construction bores

Neutron logs can also measure the build up of bore fouling thicknesses

All measurements can be processed quickly and presented in windows format for recording datasets and further examination

This is an example of casing damage in a 9 5/8”
production casing, between 782m and 785m. The decrease in
phase shift shows a split casing collar that has developed in
the well after completion and could have been the result of an
earthquake or from stress during heating of the well. This
well has been previously logged and so comparisons can be
made. A phase response that is much lower than previous
logs and double differential calliper response shows a radially
split casing collar, but the casing joint has not completely
pulled apart.

Figure 3. Metal loss in 9 5/8” production casing

Figure 5. Split collar in 9 5/8” production casing

Figure 4. Metal loss in 13 3/8” anchor casing

Casing Condition-assessing condition of bore scale and structural surveys

Bore Survey Methods

Wellclean Methods

Monitoring & Maintenance

Expertise References Links