We have to provide three types of drilling methods and techniques with different depth and diameter of bore holes.
- Rotary wash Drilling
- Percussion Drilling
In Rotary drilling: is a very fast method of advancing hole in both rocks and soils. A drill bit, fixed to the lower end of the drill rods, is rotated by a suitable chuck, and is always kept in firm contact with the bottom of the hole. A drilling mud, usually a water solution of bentonite, with or without other admixtures, is continuously forced down to the hollow drill rods. The mud returning upwards brings the cuttings to the surface.This method is suitable for boring holes of diameter 3in, or more preferably 4 to 6in, in most of the rocks. The depth of various strata can be detected by inspection of cuttings.
In Percussion Drilling: In this method, soil and rock formations are broken by repeated blows of heavy chisel/bit or barrel suspended by a cable or drill rod. Water is added to the hole during boring, if not already present and the slurry of pulverized material is bailed out at intervals. The method is suitable for advancing a hole in all types of soils, boulders and rock. The formations, however, get disturbed by the impact.
In Auger: Augers are used in cohesive and other soft soils above water table. They may either be operated manually or mechanically. Hand augers are used up to a depth of 6 m. Mechanically operated augers are used for greater depths and they can also be used in gravelly soils.
We will also perform.
Water Well Drilling:We offer you a water well drilling with experienced professional staff. We have experience in drilling water wells throughout Pakistan. Steel or PVC well casing and well screen can be installed together with appropriate filter packs. We can also undertake pumping tests to assess well performance and advice on optimum well yields and pump selection, as well as complex discharge and injection testing programs as part of hydrological investigations.
Groundwater Monitoring Wells:We have undertaken the drilling and installation of numerous groundwater monitoring wells in association with environmental impact assessments and long term groundwater monitoring programs. Our drill crews and supervisory staff have a wide experience of decontamination procedures and sampling protocols to avoid cross contamination. We also undertake groundwater sampling together with measurement of field parameters and subsequent laboratory analyses.