BDF

Groundwater Services

There is no limitation on our depth capability for the groundwater industry. We can drill holes up to 1.3m in diameter using conventional or reverse circulation, and could provide specialist equipment for larger diameters on request. Airlift reverse circulation techniques are available for hole sizes above 125mm diameter . When appropriate we can use air or foam flush, with or without downhole hammers. We also carry out coring.

We install wellscreens, gravel packs, piezometers etc. and carry out development by brushing, jetting, swabbing and airlifting.

We have extensive experience of borehole acidisation and we believe that our equipment and techniques are the most advanced in the UK outside the oil industry.

Our test pumping capability is to an industry-leading standard. We have a clear understanding that, for a pumping test, the client is primarily buying the data rather than hiring the temporary equipment. Therefore we concentrate on acquiring and presenting the data to a high standard. We have successfully carried out extensive injection and abstraction cycle tests for ASR trials, involving sealed and highly pressurised wellheads for the injection phases.

All of our test pumping equipment is also available for hire.

We also carry out remediation and abandonment of existing wells and boreholes including fishing operations for dropped objects.

For further information on BDF's groundwater drilling rigs please click on the following links:

• Rig 25 - Failing 2500
• Rig 21 - Casdril 6000
• Rig 18 - Wirth L4
• Rig 17 - Wirth L4
• Rig 10 - Failing CF15
• Rig 9 - BB30
• Rig 7 - Puntel PX600
• Rigs 1-3 - Dando 250