Water Bore Surveys

Common Problems

•Water quality declines Usually discolouration or foul smelling odour and is relatively easy to spot

•Lower Specific capacity (eg yield per metre drawdown resulting from either declining water resources or bore blockages

•Lower or fluctuation pumping yields May be assessed from review of monitoring bores to understand problems.

•Pump failure /Aging Likely due to pump failure from pump seizure of electrical problems from either pump or electricity generation

•Sand/Silt/Gravel Pack ingress into bore Bore structural failure typically can be investigated with VIDEOLOG

•chemical Encrustation Requires complex review to determine water chemistry encrustation issues

•Biofouling/Bacterial Well Clogging eg most common types are iron species that can be tested with "BART" test kits

•Pump/Bore Corrosion Can be disasterous and costly resulting from improper bore construction material or low grade non 316 Stainless Steel grade (recommended)

The technical equipment -CCTV, BART bacteria test kits provide good understanding of bore problems which determine the appropriate methods of bore service needs.

The combination of water and oil field services we can provide n unmatched bore hydromechanical cleaning and defouling of blockages.

Pumping Tests, Water Analysis and Standing Water Levels(water table) measurements show the specific capacity benefits that result from the work.

With a team combined from hydrogeologists, water bore drillers and oil rig technicians experience allows generally quick decisons to bereached and your bore brought back online

Individual assessments of each well or borefield

BIOFOULING

We assess based on degree of bore scale and biofouling
bore casing fatigue
corrosion, age and general condition
-Screen openings and % of volume opening

BORE BLOCKAGES

Pumps fallen down bores
Debris from open surfaces
Cable and foreign objects

Investigation Technique Standard Water Bore Problems

VISUAL

Dual view CCTV submersible camera – Video logSand/Silt/Gravel Pack ingress into bore- Bore’s structural failure typically can be investigated with CCTV

GEOPHYSICS BORE SURVEYS

Gamma Regolith/Hydrogeological transmissivity MicroDenisty Logging
Cement Bond Logs

METAL THICKNESS TOOLS

Casing thickness can be measured by ultrasonic and magnetic devices.
M0NITORING REVIEW
Specific Capacity vs. Aquifer Depletion
Pumping Records – Spreadsheet/Desktop/Anecdotally
Review data to determine if lower Specific capacity (eg yield per metre drawdown resulting from either declining water resources

HYDROCHEMICAL/ RUSTICEL ANALYSIS

pH EC OC TEMP DOH Indications of clogging potential, presence of biofouling) Field water testing
BART test kits
Microscope Analysis

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