Efficient And Comprehensive Drilling Technology Alternative Air Dth
Hammer
Introduction of water well drilling rig
This water well drilling rig machine mainly used for geothermal
drilling, farm irrigation , house yard, gardens and water well
drilling, drilling diameter is 70-350mm, and drilling depth is 80m
to 100m. The water well drilling rig machine also can be used in
small building piling, like farmhouse or factory, the drilling
diameter can reach 500mm and depth can be more than 100 meter.
Water wells use pumps that are used to drive water from the ground
to your home. These pumps determine the lifespan of your well.
Submersible pumps that are commonly used in many wells usually last
from eight years to ten years. With proper maintenance and care,
the lifespan can be increased to fifteen years.
Technical Parameters:
| Comparison of liquid-driven hammer drilling process and air DTH
hammer drilling process |
| DTH-HAMMER | COMMAND liquid-driven hammer |
| Applicable strata |
| Complete bedrock formation, or hard rock | Like the DTH-hammer, the crushing efficiency is extremely high for
hard formations. |
| Unsuited Stratum | The mud acts as a medium for the impactor, essentially mud
drilling. Mud drilling is suitable for a variety of formations. And
the wall protection ability is strong, it is not easy to collapse,
and the fractured formation can also be processed by filling. |
| Sandy soil layers, fractured strata and other loose formations,
when loose formations will blow up the walls of the holes, or blow
into small "big bells", if the air compressor model is not well
matched, it will cause drill cuttings at the bottom of the hole.
Suspended in the wellhead, can not blow out, resulting in buried
bottom and other hole bottom accidents. | |
| Matching equipment |
| Drilling rig | Drilling rig |
| Generally hydraulic power head drill | The rig can be in various forms, and the COMMAND uses a truss
structure, which is a high-strength square tube welding, has a high
load and good torsion resistance, and is suitable for various
aperture construction. The drilling diameter is 505MM. |
|
| Air compressor | Mud pump |
| Selection basis: | Selection basis: |
| Air flow: annular gap between drill pipe and hole wall (aperture) | Flow: Ring gap between drill pipe and hole wall (aperture) |
| Wind pressure: depth | Pressure: Depth |
| Commonly used air compressors can only reach a depth of about 280
meters, the deeper the cost is, the higher the cost is. | Mud pump is the basic component of drilling rig. Because of the
ever-changing strata, mud drilling must be used to solve complex
strata. |
| The selection of mud pump only needs to be based on the depth and
aperture of normal mud drilling. |
| Common working conditions: | Common working conditions: |
| Aperture: 168MM Depth: 200M | Aperture: 311MM Depth: 300M |
| Air compressor parameters: | Mud pump parameters: |
| 29m³/min 2.4MPA | 1200L/MIN 4MPA |
| Price: Domestic: 390,000 | Price: 75,000 |
| Import: 870,000 | |
| Common working conditions: | Common working conditions: |
| Aperture: 168 MM Depth: 600M | Aperture: 311MM Depth: 600M |
| Two air compressors: 39m³/min 2.5MPA | Mud pump parameters: |
| A supercharger: 61m³/min intake: 2.4MPA exhaust: 6.9MPA | 1200L/MIN 8MPA |
| Set Price: Domestic: 3,540,000 | Price: 180,000 |
| Imports: 4,960,000 | |
drilling rig is a kind of medium and high efficient full hydraulic
multifunctional water well drill rig for drilling up to 600m and is
used for water well,monitoring wells, engineering of ground-source
heat pump air-conditioner,blasting hole, bolting and anchor cable,
micro pile etc. Compactness and solidity are the main
characteristics of the rig which is designed to work with several
drilling method: reverse circulation by mud and by air, down the
hole hammer drilling, conventional circulation. It can meet the
drilling demand in different geological conditions and other
vertical holes.
The rig can be either crawler, trailer or truck mounted and it can
be personalized according to the various customers’ requirements.
The drilling machine is driven by diesel engine, and rotary head is
equipped with international brand low-speed and large-torque motor
and gear reducer,feeding system is adopted with advanced motor
-chain mechanism and adjusted by double speed. Rotating and feeding
system are controlled by
hydraulic pilot control which can achieve step-less speed
regulation. Breaking out and in drill rod, leveling the whole
machine, winch and other auxiliary actions are controlled by
hydraulic system. The structure of rig is designed to reasonable,
which is easy to operate and maintenance.
