Case Study

In early 2006 a borehole was drilled to 180.00 metres in the Greywacke Sandstone formation. After spending 8 hours developing the well with the Well Boring Rig and Air Compressor, the maximum output achievable was 68 lts per hour (15 gallons per hour). It was decided to Hydrofracture the well and carry out a pumping test.

The borehole was Hydrofractured at three levels using a single packer. Pressure readings and sequential backflow indicated that fractures had been opened up.

A 120 hour pumping test was carried out and a constant output of 1630 lts per hour (360gallons per hour) was achieved.

Our most dramatic successes have been in turning wells which were basically dry, into wells capable of producing 600 to 900 litres per Hour. More typically though we see wells go from 200 litres per hour. or less, to 300 or 450 litres per hour.

This is good news to customers who has a low yielding rock well. Or rock wells which have become a non-producer after years of operation. There is always the possibility of rejuvenating and increasing the yield of this rock well with Hydrofracturing and Redevelopment.

Today it seems normal with a 95% success rate of increasing the borehole yield through Hydrofracturing, providing that the formation surrounding the borehole contains water bearing layers.