PDC cutting teeth, what exactly is this thing?

Basic definition and structure:

To put it bluntly, PDC cutting teeth are polycrystalline diamond composite cutting teeth. It is not as simple as a piece of pure diamond, but 1 a very clever composite structure.

Diamond layer (cutting main force): This is the core of the PDC, is the real work of the “blade”. Countless tiny diamond particles are sintered under high temperature and high pressure to form a very wear-resistant polycrystalline diamond layer. The thickness of this layer, the size and distribution of the diamond particles, directly determine the performance of the PDC, which is behind the real material science.

Carbide substrate (supporting skeleton): This layer is the “backbone” of the PDC, usually tungsten carbide. It mainly provides strength and toughness and supports the diamond layer. The diamond layer is firmly sintered on this substrate. Without this strong matrix, the light diamond layer is hard and easy to collapse.

Therefore, the essence of PDC cutting teeth lies in this “soft and hard” composite structure: diamond is responsible for the extreme hardness and wear resistance, and cemented carbide provides overall impact resistance and stability.

The fundamental difference between the working principle and the traditional drill bit:

PDC cutters and traditional drills, such as roller cone bits, really work on two different principles. Which do you want to say is more efficient? That must depend on the situation.

Traditional drill bit (take cone bit as an example): mainly depends on hard hitting, impact, rolling and shearing, but the dominant one is impact and rolling. Think about it, like using a toothed wheel to “smash” a stone, “crush” a stone. This way, to be honest, the efficiency is not the highest, after all, most of the energy is consumed in vibration and repeated impact.

PDC cutting teeth: the core of this stuff is “shearing”. Simply put, it is like using a particularly sharp knife to “cut” against the rock surface. The diamond layer acts directly on the rock, “scraping” it down piece by piece. This is completely different from the “boom” feeling of a traditional drill bit.

What’s so special about this shearing action?

High rock breaking efficiency: shear breaking rock, the energy utilization rate is indeed much higher, which directly determines your drilling speed to a higher level. Save effort and fast, who doesn’t like it?

Continuous stability: it has no rotating parts, and contact with the rock is a continuous cutting, unlike a roller cone drill. This feature, used to know, stable.

In terms of adaptability: I personally feel that PDC is simply a “stroke of God” in the medium-soft to medium-hard strata, with high efficiency. Of course, PDC is not omnipotent when encountering particularly hard or abrasive formations. The design and material formulation really need to be carefully considered. It is a technical job.

PDC Drill: This thing is really a subversive “good hand”!

To be honest, the PDC bit is definitely a “game changer” in the drilling circle “. This is not my nonsense, but the practice over the past few years has proved it again and again.

Speed and passion coexist: the ultimate challenge of drilling speed and efficiency

Drill speed? That’s really hard to say!

You see, the traditional roller cone bit does have its territory under some formations, but what about PDC? Especially in those soft to medium hard formations, or even some of the more difficult complex formations, its footage speed is simply “fast”. If you look for a drilling report, PDC’s rate of penetration (ROP) data under the same working conditions can often throw away a lot of traditional drill bits. This is not only a good look at the numbers, but also a real improvement in productivity.

Save worry and effort, reduce the “blind busy work” time.

Have you calculated how long it takes to pull a well? That’s pure non-productive time, and every minute and second is money. The PDC bit has good performance and can greatly reduce the frequency of your bit changes. In the past, a well might have to be changed five or six times, but now PDC may have done it in one breath! The time saved is the efficiency of real money!

Unbreakable Body: Wear Resistance and Long Life “Hard Strength”

Diamond, the hardest thing on earth!

Why is the PDC bit so good? The core is the polycrystalline diamond compact (PDC) on its cutting teeth. Diamond this thing, hardness and wear resistance that but the ceiling level. So the PDC drill bit is born to be a “tough” guy.

Don’t underestimate this “province”, the cumulative amount is not small.

PDC bit has a long life and is not easy to wear. The direct benefit is that the bit is consumed. Do you want to buy drill bits, transport and manage inventory, which one does not need money? Not to mention, the operation intensity and risk of on-site workers will be reduced if the drill bits are changed several times less. If these 7788 savings come down, won’t the overall cost come down? It’s quite simple.

Don’t just look at the present: cost-effective “careful calculation”

In the long run, PDC is definitely a good investment!

I know that many people listen to PDC drill, the first reaction is “expensive”. This is like buying a car. Some cars have a low entry price but high fuel consumption for later maintenance. Some cars have a high initial investment, but they save worry and money when used. The PDC bit is the latter. We have to do a general ledger and do a life cycle cost analysis. Taking into account the factors mentioned earlier, such as high drilling speed, shortened construction period, reduced drilling time, reduced bit consumption and reduced labor, you will find that the comprehensive cost of PDC bit in the whole drilling project is often lower, or even much lower!

This is not only to save money, but also to improve the profitability of the project!

The ultimate goal is not to make the drilling project more profitable? These advantages of PDC bit optimize the drilling efficiency, reduce the operation risk, and reduce the total cost of the whole project. Therefore, from the perspective of our industry veterans, PDC drill is not only a tool, it is a “weapon” to enhance the economic benefits of the project “!

PDC cutting teeth: a key force in reshaping the drilling industry landscape

Talking about PDC Cutter (PDC Cutter), this thing is indeed a “malicious role” in the drilling circle, quietly changing many old rules. Let me say that its impact on the whole industry is mainly concentrated on the following points:

First of all, the most obvious feeling is that it directly changes our drilling operation mode. In the past, I had to change my drill bit when I was old. If I didn’t say anything, it was easy to go wrong. As soon as the PDC cutting teeth came, they went directly to “drill in once. This improvement is not small, efficiency immediately soared, non-productive time also followed down. This is not only a matter of saving money, but more importantly, it has laid a solid foundation for the future trends of drilling automation and remote control. Do you think, the drill can carry it for a long time, so we have the confidence to think about those more advanced gameplay, or even make an “unmanned drilling” or something, which we did not dare to think about before.

Secondly, the rise of PDC cutting teeth is definitely a major contributor to the development of deep wells, ultra-deep wells and unconventional oil and gas resources. Those deep underground, geological conditions and complex oil and gas reservoirs, the traditional drill bit is really a bit powerless. However, PDC cutting teeth, with its “tenacity” and super cutting ability, have become the first choice to conquer these “hard bones. For example, shale gas and tight oil are very difficult to develop. Without the efficient and reliable tool of PDC cutting teeth, where can we have these breakthroughs now? It can be said that it is a “golden key” to open the treasure house of these complex resources, so that those seemingly “impossible” resources have become a success.

Finally, and most real, is the economic benefits and return on investment brought by PDC cutting teeth, which is really a bar. From a large point of view, “one drill” a popularization, the progress of the project is like a rocket. The shorter the project cycle, the natural oil and gas output can be advanced. For oil and gas companies, this is a real benefit. Time is money, especially in our industry, one day earlier output, that is real money. This efficiency improvement will eventually be directly reflected in the company’s profit statement. Therefore, although PDC cutting teeth themselves may not be cheap, from the perspective of the entire project cycle, this investment is definitely cost-effective, and the rate of return is great.

PDC cutting teeth, not just tools

Let’s talk about PDC cutting teeth, but don’t think of it as a general drilling tool. In my opinion, the core value of this thing is to create an all-round player of “efficiency, cost, safety and environmental protection” for our industry. Do you think about it, which project does not pursue high efficiency, low cost, but also to ensure safety and environmental protection? PDC cutting teeth are really awesome in these aspects.