Directional drilling (DD) is seen as a marriage of conventional road boring and the directional drilling of oil wells.
It is also known as directional boring, horizontal drilling, slant drilling, or deviated drilling, is a method of trenchless technology that involves drilling a non-vertical well or borehole. It can be broken down into three main groups: Oilfield Directional Drilling, Utility Installation Directional Drilling (or H.D.D. or Horizontal Directional Drilling) Directional boring, and in-seam directional drilling to extract coal bed methane.
Many directional boring machines also use a drilling fluid or slurry called mud. Other machines use foam or air, or both. The drilling fluid or mud is composed of bentonite clay and water with additives for enhancing performance. The higher-pressure jet of fluid is used in soft ground to cut through the soil. The cuttings then get suspended in the fluid. As more fluid is pumped down into the hole, the cuttings are brought back up to surface where they settle in a pit or are removed mechanically.
GN solids control equipments are used to handle the drilling mud with cuttings, to separate the big cutting out of the drilling fluids, so that the mud can be used for drilling again.
For oilfield directional drilling, we provide a complete solids control system, including 4-class cleaning of mud, shale shaker – desander – desilter – centrifuge, sometimes vacuum degasser is applied.
For horizontal directional drilling, we provide a complete mud recycling/cleaning system, a trailer mounted unit including shale shaker, mud cleaner, mud tank and jet mixing unit.
To inquiry directional drilling machines for oilfield drilling and HDD, pls contact GN solids control.