Bits ‘n Pieces – The Driller’s Blog

Comparing Diamond Drilling with Reverse Circulation Drilling

Posted by Rod McCoremick on Jul 10, 2019 10:30:00 AM

Most of our blogs focus on diamond drilling, but occasionally we will delve into topics related to geotechnical or other types of drilling. In this blog, we are going to look at reverse circulation drilling, known as RC drilling.

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Topics: Basic drilling information, How to choose equipment

Which Core Bit to Use When Wedging?                  The Prism60

Posted by Rod McCoremick on Jun 26, 2019 11:27:00 AM

Bore hole deviation is one of those things that occur despite all the preventative measures and precautions that diamond drillers may take. Deviations may occur due to equipment that is lost and stuck in the bore hole or it may be intentional because the geologist has requested a new trajectory. A deflection wedge is one of the oldest and simplest ways to steer the bore hole. There are other choices for directional drilling and you can read about them in this blog.

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Topics: Tips on common drilling issues, Basic drilling information, How to choose equipment

Onsite Visit Results in Left-handed Coring

Posted by Rod McCoremick on Jun 12, 2019 11:00:00 AM

Our technical team in Northern Ontario had an interesting request a while ago during an onsite visit. The mining company they were visiting was a longtime customer with multiple mines. The mine was one of the largest in the world and a large player in the area. With a lot business already done, and an excellent relationship developed over 25 years, the customer would often consult with us when it came to anything to do with coring challenges. During this particular visit, they asked if we could come up with a procedure and the necessary tooling to be able to get core using unconventional drill rigs such as a jumbo drill or a bolter.

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Topics: Tips on common drilling issues, Basic drilling information

Trouble shooting Matrix Wear – ID Gauge Loss

Posted by Rod McCoremick on May 29, 2019 2:00:00 PM

It has been a while since we did a blog on matrix troubleshooting where we examine the different wear patterns on a bit crown. By looking at the wear profile, you can get clues as to why your core bit may be underperforming. There are many variables that can cause a really good core bit to underperform. It can be a change in ground conditions, drilling parameter or simply a lack of experience.

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Topics: Tips on common drilling issues, Basic drilling information

Drilling Parameters: A New Guide for Diamond Drillers

Posted by Rod McCoremick on Apr 17, 2019 11:00:00 AM

Drilling parameters are really important when it comes to drillers achieving great drilling performance and long bit life. They help guide a driller avoid burning bits or damaging other drilling equipment. Diamond drillers have learned that there is a relationship between the drilling parameters and all others factors in drilling, such as the diameter of the equipment of you’re using, rock hardness or ground variability.

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Topics: Tips on common drilling issues, Basic drilling information

5 Easy Tips to Go From Helper to Driller

Posted by Rod McCoremick on Apr 3, 2019 11:30:00 AM

No one starts out as a diamond driller. Like many other industries, in mineral exploration, there is an apprentice-like job: the helper or the offsider, depending on where you are working. A drill rig is a powerful machine and no one is going to let an inexperienced employee take control of it without making sure they know what they are doing.

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Topics: Basic drilling information

Newbie’s Overview of Diamond Drilling Safety

Posted by Rod McCoremick on Feb 20, 2019 11:00:00 AM

As in any industry, new employees have a lot to learn about their new jobs and responsibilities. In the drilling industry however, there are safety issues that newcomers must also be aware of and learn about in order to be safe and avoid accidents. With proper training and supervision, most accidents can be prevented.

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Topics: Drill Site Security, Basic drilling information

Drilling in Hard Rock

Posted by Rod McCoremick on Feb 5, 2019 11:00:00 AM

In a previous blog, we discussed some of the issues you encounter when drilling in soft rock. This time, we’ll look at the opposite end of the spectrum: hard rock. Hard rock is defined as being over 6 on the Mohs scale of hardness. Common types of hard rock included kimberlite, granite, chert, quartz and silicified rock.

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Topics: Tips on common drilling issues, Basic drilling information

Dos and Don'ts for Soft Rock Drilling

Posted by Rod McCoremick on Jan 22, 2019 10:30:00 AM

Drilling in soft rock is not always a walk in the park. Oftentimes, we associate hard rock as the type of ground that is most difficult to drill in. This is true, and we will address those issues in an upcoming blog. However, soft rock as its own set of challenges. Let’s look at soft rock and how you can avoid problems and be more productive.

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Topics: Tips on common drilling issues, Basic drilling information

6 Questions for Rod McCoremick: Diamond Drilling Veteran

Posted by Rod McCoremick on Jan 7, 2019 10:00:00 AM

We’re taking some time during this holiday season to chat with Rod McCoremick, our resident blogger, about how he came to be a diamond driller. Leveraging his more than 20 years in the industry, Rod is an old-hand who has been writing about the challenges of the industry, and providing tips, advice and general information we think would be of interest to the diamond drilling community.

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Topics: Basic drilling information, Beyond drilling - other topics of interest



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