mercredi 14 novembre 2018

Understanding Features Of Rock Drilling Reamer

By Michael Barnes


Selecting the right drill tools can be daunting due to a variety of options. Most drill operators choose different types of rock drilling reamer to achieve pleasing results quickly, maximize tooling costs and reduce downtime. Operators face numerous challenges when digging holes. These challenges include frictional pullback, holes collapsing and difficulty removing fluid cuttings from the ground. To avoid such challenges, you need to choose a reamer with a diameter 1.5 times larger than that of the pipe designed for the hole.

It is normal to assume drill equipment have unique features designed for a specific ground. Drill equipment has different designs which overlap each other to provide solutions to a variety of soil types. It is your responsibility to determine the soil type you want to drill. Common ground types include sand, clay, rock and mixed ground. Keep in mind, a mixed ground is the hardest to drill because it is a mixture of clay, rock, and sand.

Digging a hole in sandy soil has proven difficult because sand is usually water charged. This means it is easy to collapse anytime a cutting tool passes through. However, with a compaction reamer, operators do not have to worry about sand collapsing. This tool depends on a filter cake which forces fluids inside the ground to offer support. With a filter cake and drilling fluid in place, operators can dig holes without fear of sand collapsing.

Compaction reamers are cone-shaped, meaning they increase in size which helps open up holes. With a compaction cutting tool, it is easy to push digging fluids into the ground supporting the drilled hole to prevent collapse. This type is designed with flutes which allow the flow of drilling fluids and cuttings.

Drill operators need to understand fluted compaction reamers are not created with similar materials. Some are made of solid material which guarantees perfect results in different ground types. Others are either made out of cast materials or fabricated. Working with rotary cutting tools made of solid material can be daunting because of the heavyweight. However, they are the best due to their long-lasting features.

Besides materials, think about the in-built features such as swivels and carbide teeth. A tool with swivels is less likely to stick in the mud and can be pulled back easily in the event of an emergency. Operators do not need any jacking equipment to push back a cutter when an emergency occurs.

Another drilling tool option to consider is the mixing reamers. Just like the name suggests, this type promotes fluid mixing in the ground. Chances of ground especially clay clogging inside holes after mixing with water or drilling fluids is very high. To prevent clogging, mixing reamers either fly cut, beavertail or ripped enhances mixing breaking down soil particles to allow smooth flow of cuttings.

To drill a hole without facing much difficult, you need to think about fluid pumping actions. The best mixing reamer is made of a backward-angled mud jet. It also comes with cutting blades that can be designed to function like a boat propeller which removes mud and cuttings outside dug holes.




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