Directional Drilling – An Innovative way of Drilling.
Underground Boring is a non invasive technique to install conduits underground that later be utilised for phone, gas, Tv, electric or water. Originally directional drilling developed by the oil industry in the United States, this unique technique is now generally used for almost all pressure pipes beneath major obstacles such as motorways, big rivers, air-port runways etc. A steerable drill bit of 90mm diameter is launched from the surface at 10′ -15′ and produces a pilot hole. This is followed by a 125mm washover pipe. On completion, the actual pilot string will be taken out and a rotating barrel reamer travels back along the washover pipe. Subsequent reaming continues right until the actual required diameter is established. Drives of more than one thousand metres and upward to one metre in diameter have also been carried out.
Directional Drilling is done with the help of a viscous fluid referred to as drilling fluid. It is a blend of of water and, usually, bentonite or polymer continually pumped to the cutting head or drill bit to be able to facilitate the removal of cuttings, stabilize the bore hole, cool the cutting head, as well as lubricate the passage of the product pipe. Directional drilling requires the installation of a pilot rod straight into virgin ground, that is steered from above ground working with a tracking system. The head of the pilot rod is eccentrically loaded, so that rotational steering can certainly take place.
Southern Cross Directional Drilling have a new addition with our brand new 32000 pound Astec HDD that has a new F2 location system. Obviously, trenchless pipe laying technologies provides several uses as well as far reaching applications. Its not just gigantic pipelines that are carried out by Southern Cross Directional Drilling. Smaller sized (blank) environmental services are a handful of the companys additional services.
For just about any job large or small, Southern Cross Directional Drilling has got the expertise and experience to get the work done quickly and inside of budget.