Phoenix, AZ Underground Directional Drilling Companies Longer product pipe length installation possible Once the utility product pipe is installed, the exit and entry points are excavated if necessary and connections are made as needed.ĭirectional boring is used in place of other underground utility product pipe installation techniques in Phoenix, AZ for the following reasons:ĭeeper product pipe installation possible This type of product pipe drilling installation is known as “drill and leave”. The swivel prevents rotation of the utility product pipe while pulling it back.įor some power, cable and telecommunications projects, the drill pipe itself becomes the conduit and is left in the ground upon reaching the exit point. Drilling fluid is pumped downhole to provide lubrication and the utility product pipe is pulled in while rotating the drill pipe & reamer. When the borehole is between 25% - 50% larger than the pipe to be installed, the end of the drill pipe is connected to a back reamer which is attached to a swivel which is then connected to the utility product pipe. Drill pipe is added behind the reamer or hole opener so that there is always drill pipe in the borehole. The back reamer is pulled back while rotating the drill pipe to enlarge the borehole with as many consecutive passes as are needed. Upon reaching the exit point, the drill bit is detached and the end of the drill pipe is attached to a back reamer or hole opener (for rock), if the borehole must be enlarged.
Drilling fluid (mud) is classified as non-toxic and can be disposed of accordingly. As drilling fluid is pumped down the hole the cuttings are carried back out to the surface where they are either allowed to settle out in a pit or removed mechanically in a mud cleaning system. In softer soils the jet of fluid cuts through the soil, with the cuttings suspended in the drilling fluid. Directional drilling fluid is generally a mixture of bentonite clay and water, with additives used to improve borehole performance. Air & foam machines are used for drilling in rock. Most directional boring machines use drilling fluid while a few machines are designed to use either air or air and foam. We utilize state of the art horizontal directional drilling (HDD) machines and experienced drilling crews for commercial, residential and municipal underground pipe installation projects in Phoenix, AZ and the surrounding area.
Phoenix, AZ Drilling and Directional Drilling Companies We have 25+ years of directional drilling experience and have bored and installed utility pipelines under trees, under city roads, under bridges, under railway tracks and even under rivers. Our Phoenix, AZ directional boring experts excavate an opening beneath the ground without disturbing the surface to bore underground pipes and conduit for utility lines of all types of lengths and diameters whether large or small.įrom electrical to fiber optic lines, sewer lines and water mains, to oil and gas pipelines our Phoenix, AZ boring crew uses directional boring techniques to place HDPE, PVC and steel pipe, conduit and cables under almost any surface like concrete slabs, driveways, roadways, sidewalks and walkways in diverse terrains like dirt, clay, cobblestone, rock and even sand. We provide underground utility construction services specializing in the underground boring of utility pipelines for satellite, cable, TV, Internet, wi-fi, fiber optic, security, electric power, solar, wind, telephone, oil, gas, petroleum, steam, sewer, drain, water and irrigation crossings. Phoenix, AZ Construction Directional Drilling Companiesĭirectional Drilling Companies provides Phoenix, AZ with underground utility and infrastructure construction services via tunnel construction services, horizontal auger boring and (HDD) horizontal directional drilling more commonly called directional boring.
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