Directional Drilling – A Great way of Drilling.
Posted By Connie on September 28, 2010
Directional Drilling is a non invasive technique to install conduits underground that later on be used for phone, gas, Television, power or water. Initially directional drilling established by the oil industry in the United States, this kind of methodology is these days generally used for all pressure pipes underneath major obstacles such as motorways, large rivers, air-port runways for example. A steerable drill bit of 90mm diameter is launched from the surface at 10′ -15′ and makes a pilot hole. This is followed by a 125mm washover pipe. On completion, the actual pilot string will be extracted and a turning barrel reamer moves back along the washover pipe. Subsequent reaming continues until eventually the actual required size is actually obtained. Drives of more than one thousand metres and upward to one metre in diameter have also been carried out.
Trenchless Pipe Laying is done with the assistance of a viscous fluid referred to as drilling fluid. It is a mixture of water and, commonly, bentonite or polymer continuously pumped to the cutting head or drill bit that will facilitate the removal of cuttings, strengthen the bore hole, cool the cutting head, and also lubricate the passage of the product pipe. Directional drilling requires the installation of a pilot rod directly into virgin ground, which is steered from above ground using a tracking device. Typically the head of the pilot rod is eccentrically loaded, so that rotational steering can 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. Of course, trenchless pipe laying technologies provides several uses as well as far reaching applications. It is not basically massive pipelines which are carried out by Southern Cross Directional Drilling. Smaller sized (blank) environmental services are a couple of the companys extra services.
For almost any job large or small, Southern Cross Directional Drilling has got the know-how and experience for getting the work completed promptly and inside of budget.
Leave a Reply