Bits ‘n Pieces – The Driller’s Blog

A New Guide for Diamond Drillers on Bore Hole Deviation

Posted by Rod McCoremick on Nov 6, 2018 11:00:00 AM

It’s kind of inevitable that, like death and taxes, you will have to deal with borehole deviation at some point in your drilling career. Bore holes are rarely straight and the further down you go, the more likely the chance of your hole going off the chosen trajectory. This can be quite a problem if the geologist needs to hit a particular ore body. And the fact of the matter is that many of the ore deposits near the surface have already been depleted so you need to drill deeper.

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

Tips to Recover Core More Easily

Posted by Rod McCoremick on May 7, 2018 11:30:00 AM

Let’s face it, core recovery is what it’s all about in diamond drilling – it’s the reason we are out there on a drill site. The more core that you are putting in the box, the happier your boss or the mining company will be. Not surprisingly, this is a topic that our field technicians get asked about a lot and that our subscribers say is a challenge. Read more about improving core recovery here.

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Topics: Basic drilling information, Tips on common drilling issues

Tips for Diamond Drilling in Permafrost

Posted by Rod McCoremick on Jan 15, 2018 10:30:00 AM

At least up here in the Northern hemisphere, winter has arrived in full force. In many regions, the coldest temperatures over consecutive days were recorded, breaking many previous records. The experts say that extreme temperatures are likely to continue.

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Topics: Basic drilling information, Tips on common drilling issues

More to Learn about Drilling Deep Holes

Posted by Rod McCoremick on Dec 4, 2017 10:30:00 AM

When we wrote our blog on how to drill really deep holes, we try to include the most important information and tips. Sometimes however, there is too much to cover in one single blog. We want our blogs to be easy to read and not take you too long to get through. The subject of drilling deep holes is an important one and there was information that was not covered in the blog.

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Topics: Basic drilling information, Tips on common drilling issues

Watch and Learn How Not to Ruin Your Core Bit

Posted by Rod McCoremick on Nov 27, 2017 10:30:00 AM

The saying goes that a picture is worth a thousand words. If that is true, then a video should be worth a million. Everyone I know prefers to watch a video so I’m always happy when we can offer our customers a video to help explain drilling procedures. Many people in mineral exploration industry are technical and very visual so an animated video is one of the best ways to illustrate how things work.

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Topics: Basic drilling information, Tips on common drilling issues

Preventing Core Washout

Posted by Rod McCoremick on Sep 25, 2017 10:30:00 AM

It’s all about the core. When a drilling project is started, the purpose is to drill and get a decent core sample. You may have to deal with a few challenges but once you’ve dealt with them the last thing you want is to lose the core because of wash out. Your core being washed out is most likely to happen when your ground is not competent, fractured, sandy or full of cobbles. Luckily, there are a few tips that can help you hold onto the whole core sample.

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Topics: Basic drilling information, Tips on common drilling issues

7 Things to Do When Drilling Deep Holes

Posted by Rod McCoremick on Sep 18, 2017 2:30:00 PM

Deep hole drilling is a chance for drillers to strut their stuff and show they have what it takes. Most drillers consider a hole deep if it is deeper than 1,500 meters. At that depth, drilling is a little more complicated and extra care is required. It’s the time you step up to the plate and show your supervisor you can deal with increased load responsibilities. What you don’t want to do is mess up – the deeper the hole, the more money that has been invested in it. A mistake in a deep hole costs a lot of time and money.

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Topics: Basic drilling information, Tips on common drilling issues

How to Avoid Leaking Drilling Equipment

Posted by Rod McCoremick on Aug 28, 2017 10:30:00 AM

Leaking equipment can have very negative results on drilling performance. It can impact your core recovery and prematurely damage other drilling equipment. You cannot always control a situation that starts down the hole so prevention is important. The drill rods are often the culprit but leaks can happen in your pump and other equipment as well.

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Topics: Basic drilling information, Tips on common drilling issues

5 Tips to Improve Core Recovery

Posted by Rod McCoremick on Jul 24, 2017 2:00:00 PM

Core recovery, and how to improve it, is a topic that comes up often in a discussion with field technicians. This is not surprising, since it is the purpose of diamond drilling and every driller and drilling company wants to be efficient and cost effective when drilling. There are several tips that can help you improve your core recovery.

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Topics: Basic drilling information, Tips on common drilling issues

Matrix Toubleshooting: Outside Diameter Wear

Posted by Rod McCoremick on Jul 3, 2017 2:00:00 PM

Over this year we have done a few blogs on matrix troubleshooting where we have examined the different wear patterns on a bit crown. The wear profile provides clues as to why your core bit may be underperforming. By changing drilling parameters or making other simple changes, you may be able to improve drilling performance. Not long ago, one of our blog subscribers mentioned having problems with gauge loss on the outer diameter. Let’s look at some of the causes and some of the solutions.

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Topics: Basic drilling information, Tips on common drilling issues



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