Horizontal Directional Drilling is the fastest growing, most innovative method of drilling nowadays, having undergone major advances in the tools and techniques involved. As with directional drilling, there are numerous specific applications for HDDW’s.
The equipment and methods used in the horizontal directional drilling (HDD) process are an outgrowth of the oil well drilling industry. The components of the HDD system are similar to those of an oil well drilling rig except for the fact that HDD setups use an inclined ramp instead of a vertical mast. Because of their similar nature, the HDD method is usually referred to as drilling instead of boring.
Water management with horizontal directional drilling
Cost experts agree on HDDW’s as the preferred method of water extraction as they provide for greater contact area with most aquifers compared to vertical wells, thus enhancing the production factor by as much as 15 to 20 times. More and more, water extraction specialists are turning to HDDW’s construct systems that are much less expensive over time as a result of the technique’s ability to make the process faster, simpler, and less energy-consuming.
Additionally, HDDW’s can deliver overall higher capacity to achieve cost-efficiency while satisfying the demands of applications that require heavy water usage.
The Horizontal Directional Drilling process in detail
The HDD process is normally performed in three stages. The first stage is the directional drilling of a small bore hole along a designed horizontal path. The second stage involves enlarging the bore hole with a rotary reamer to achieve a suitable diameter to insert the pipe sleeve. Finally, a filter tube is installed by pulling it through the pipe sleeve. Additionally, unlike vertical wells, HDDW’s can utilize the soil around the filter tube as a natural area filter, or one can be flowed in artificially after the sleeve removal to create an area filter that provides a natural transition into the surrounding soil material.
Visser & Smit Hanab is one of the leaders in HDDW techniques. If you would like to receive more information, please contact us. Give us a call, or fill in the form on the right part of the website.