How to Pick the Right Drilling Equipment for Peak Performance

There are several factors to consider when selecting

Application:

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Determine the specific drilling application, such as underground mining, surface mining, oil and gas drilling, or construction. This will help you select the right mining equipment that is designed for the specific conditions and requirements of the job.

Hole size and depth:

Consider the stripping ratio, bench height, bench width, type of Ore of the drill site. This will determine the size and mobility of the equipment needed.

Rock type and mineralogy:

Different types of rock and minerals require different types of drilling equipment. Research the geology of the area to be drilled and choose equipment that is suitable for the specific rock type.

Drilling method:

Different drilling methods, such as rotary, DTH, and reverse circulation, require different types of equipment. Choose equipment that is compatible with the drilling method to be used.

Drilling conditions:

Consider the conditions in which you will be drilling, such as rock type, depth, bench dimensions and choose equipment that is designed to handle those conditions.

Durability:

Choose equipment that is built to withstand the rigors of drilling, including vibration and impact, to ensure that it lasts for a long time.

Power source:

Consider the type of power source that is available on the site. This will help you select equipment that is compatible with the available power source and can perform effectively.

Owing experience:

Consider the experience and skill level of the operator and choose the right

Safety features:

Ensure that the equipment has all necessary safety features to protect the operator and the environment as per ISO standards.

Cost:

Evaluate the operating and owing cost of the equipment and choose drilling equipment that fits your requirements and specifications.

Consultation with experts:

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Consult a

There are several factors to consider when selecting drilling equipment for better performance Determine the specific drilling application, such as underground mining, surface mining, oil and gas drilling, or construction. This will help you select the right mining equipment that is designed for the specific conditions and requirements of the job.Consider the stripping ratio, bench height, bench width, type of Ore of the drill site. This will determine the size and mobility of the equipment needed.Different types of rock and minerals require different types of drilling equipment. Research the geology of the area to be drilled and choose equipment that is suitable for the specific rock type.Different drilling methods, such as rotary, DTH, and reverse circulation, require different types of equipment. Choose equipment that is compatible with the drilling method to be used.Consider the conditions in which you will be drilling, such as rock type, depth, bench dimensions and choose equipment that is designed to handle those conditions.Choose equipment that is built to withstand the rigors of drilling, including vibration and impact, to ensure that it lasts for a long time.Consider the type of power source that is available on the site. This will help you select equipment that is compatible with the available power source and can perform effectively.Consider the experience and skill level of the operator and choose the right rotary drilling equipment that is easy to operate and maintain.Ensure that the equipment has all necessary safety features to protect the operator and the environment as per ISO standards.Evaluate the operating and owing cost of the equipment and choose drilling equipment that fits your requirements and specifications.Consult a mining equipment manufacturer that has been supplying mining equipment to all corners of the world since 1977 and has 50 years of experience in the mining industry.By considering these factors, you will be able to find the correct drilling equipment for better performance and efficiency.

Drilling type Soil type Comments

Rotary drilling

Soft rock Significant depths up to 5,000 meters
Possibility of inclined or horizontal drilling Down-the-hole drilling Hard and cracked rock (limestone, granite, etc.) Depth up to 4,000 meters Top hammer drilling Consolidated land Small diameter (150 mm maximum), shallow depth
Able to do inclined drilling Auger drilling Clay, clayey sand, gravel Depth of a few dozen meters

Core drilling

All soil types Drilling for soil analysis
Able to do inclined drilling Percussion drilling Hard rock: sandstone, limestone, shale Depth up to 100 meters Pipe Jacking Clay, clayey sand, gravel Installation of horizontal or vertical pipes

 

Rotary drilling: This type of drilling digs a hole by grinding the rock with a tool under the effect of weight and rotation. It is mainly used in oil production. The cuttings are brought to the surface under the pressure of a drilling fluid that is injected into the drill string. Drilling fluid also helps consolidate the walls of the borehole, so it is not necessary to case it as the operation progresses.

Down-the-hole drilling (rotary percussion drilling or rotary hammer drilling): this type of drilling uses drilling rigs that drill with a rotary cutter (drill head) and hammer the bottom of the hole with a pneumatic hammer. The excavated material rises to the surface under the pressure of the compressed air used for the hammer. These drilling rigs are powerful and have high drilling rates, especially in rock. For artesian wells (wells where water naturally rises to the surface under groundwater pressure) or geothermal drilling, an air injection at the end of the drill pipe pushes the water up the borehole, allowing the operator to immediately determine the water flow encountered. This type of drilling is used for hard and cracked ground up to 4,000 meters deep. When the drilling bit is eccentric, the drilling can be done with a casing advancement system (installation of tubes by gravity) which reinforces the hole as the drilling progresses.

Top hammer drilling: this type of drilling uses drilling rigs that also operate on a percussion system, but one that remains outside the borehole. They are mainly used for small diameter drilling, for example for mineral exploration or the installation of tie rods in rock. This system is used for shallow boreholes, as there can be significant deviation due to the structure of the ground drilled through. These drilling rigs can operate in any direction however.

Auger boring: This is a type of rotary drilling using a worm screw (the auger). This type of drilling is mainly used for unconsolidated clay or sand terrain. The excavated material is directly brought to the surface by the worm screw. For deep drilling, it may be necessary to regularly raise the auger to empty it of its excavated material.

Core drilling: Core drilling is similar to rotary drilling, but it uses a crown to extract a sample, called a core, inside the tool.

Percussion drilling: consists in breaking the rock by dropping a tool, the drill bit, by gravity. This type of drilling can only be used vertically. To prevent the borehole from collapsing, it is necessary to case it as it is drilled. The cuttings are reassembled as soon as they interfere with drilling by replacing the drill bit with a flap valve bailer. The flap valve bailer is a type of tube equipped with a tilting flap in the lower part. This tilting flap allows the tube to be filled with excavated material which is then transported to the surface.

Pipe jacking: is mainly used to install horizontal pipes. The tube is pushed progressively by percussion, the excavated material being removed at the end of the drilling operation either by water injection or with an auger. This technique is used in particular to avoid transmitting vibrations to the surrounding buildings or to avoid digging a trench.

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