When we wrote a blog a little while ago comparing RC drilling to diamond drilling, one of the things that we didn’t mention was that there is little standardization in RC drilling. Unlike diamond drilling, most of the parts that make up a drill string are not compatible with parts from other manufacturers. This means that configuring, or choosing the types of equipment you need, can be complex and difficult.
Picking the right diamond tool for your drilling project is a topic we’ve covered before in a lot of detail. We’ve written blogs and guides on how to choose the right core bit and the right configuration for that core bit. Oftentimes, our guides include a matrix selection chart to help drillers choose the right core bit depending on the hardness of the ground on Mohs scale.
Subscribers who have been reading this blog for a while know that I am a big fan of drilling additives. When you are drilling in difficult conditions, drilling fluid additives can really help improve drilling performance. There are additives that are great for most conditions and other that were developed for specific ground conditions like sand or clay.
When I talk about new products in this blog, I hate to overpromise. I like to think I provide fair information about what a new product does and why it was developed. The DiscovOre is a new core barrel system that I think really is something different… maybe even revolutionary. It addresses two big issues for drillers, safety and productivity.
One of the most challenging ground formations for diamond drilling is fractured ground. When drilling in highly fractured or broken ground, you run the risk of hitting a void or large fracture and having your drill water escape through that fault. Similarly, in an underground drilling environment, groundwater is often unexpectedly encountered in the drill hole. Extremely high flow rates and pressures are not uncommon.
While many diamond drillers enjoy fishing in their spare time, no one wants to go fishing on the job. Fishing is the process of removing down-hole equipment that has become stuck, lost, or broken off in the hole. It means that operations have ground to a stop and your productivity is being affected.
Many of our blog topics come from real-life situations, either from reports on onsite visits or directly from our customers. They represent the types of issues that many of our customers are facing so we use these opportunities to explore possible solutions or explanations. This blog is about industry standards within the diamond drilling world.
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.
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.
In order to accomplish our corporate goal of improving drilling performance, our engineering team develops new core bits that address particular drilling challenges. Rock abrasiveness is a common challenge faced by many diamond drillers. Abrasiveness can wear down bits prematurely, regardless of the hardness of the ground.