#pdcdrillbits

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PDC bits and hole openers are being used in a wide range of applications over various formations for quite a while now. The successful results have made PDC the most commonly used drill bits across drillers from all over the world. The absence of rotating parts in PDC bits results in a better life expectancy and thus, greater cost savings.

Here is a list of 5 things you should know when working with PDC drill bits.

1. PDC bits produce great results when used for drilling formations with low abrasiveness. In formations such as soft to medium shale sequences, PDC bits exhibit high rate of penetration and allow the formation to be drilled in just one run. 2. PDC bits are not very productive when used in highly abrasive formations such as well cemented sand sequences mainly because drilling in such formations often results in PDC chipping and breaking. This can have an adverse impact on the bit life. 3. When working on heterogeneous formations, the drilling experts suggest using hybrid PDC drilling bits. Hybrid PDC bits have diamond studs behind the PDC cutter which absorb the increased weight when drilling abrasive strings and prevent premature damage. 4. When drilling harder formations, one should stick to using bladed hybrid PDC bits. These allow optimum fluid to flow across the cutter and efficiently reduce the friction temperature and minimize fracture of the cutters. 5. Eccentric PDC bits should be considered when drilling plastic formations such as salt sections. These bits have proven to be successful in areas where problems with salt flow are experienced.

Best Quality PDC Drill Bits UK

Before we talk about the different types of drilling tools available for use in construction & HDD or oil & gas industry, it is important to understand some of the most commonly used drilling methods such as percussion drilling, rotary drilling, electro-drilling, and directional drilling as well. Here, let us take a quick look at the major points of difference between rotary drilling and directional drilling.

Rotary Drilling

Most commonly used for digging up wells that boast of depths exceeding five miles below the ground, rotary drilling is performed using lightweight drills. The drill bits used in this method usually depend on the type of formation that needs to be penetrated. For instance, unconsolidated sediments can be penetrated using drag bits while consolidated rocks can be penetrated well with roller cone bits. The rotation speed of the drill during rotary drilling can be adjusted as per the requirement.

Directional Drilling

Direction drilling can be looked upon as an extension of rotary drilling. It is a drilling method in which the drill is guided on a curved path as the hole deepens. Mostly used in oil & gas industry, it helps the explorers reach deposits beyond the reach of vertical drilling method. This is among the most cost-efficient drilling methods as it allows the explorers to drill multiple wells in all directions using a single platform.

Designed to drill seamlessly even under the toughest of the conditions, Rockpecker drill bits are manufactured in the UK and are supported by several international service centers. Thanks to the use of high-grade materials, continuous product development methods, and precision engineering, their oil well drilling bits are fully capable of fulfilling customer drilling objectives such as repeatable quality, low cost per foot, and reliable performance.

All the drilling bits available these days can be broadly categorized as rolling cutter bits and fixed cutter bits. Let us take a quick look at the various aspects of each of these types:

Rolling Cutter Drilling Bits

Rolling cutter bits, also known as roller cone drill bits or tri-cone bits, have three cones and each of these can be rotated individually when the drill string rotates the body of the bit. Roller bearings are fitted onto the cones at the time of assembly. This type of drilling bits can be used to drill all kinds of formations with a proper cutter, bearing, and nozzle.

Rolling cutter drill bits can be further classified as milled-tooth and tungsten carbide inserts depending upon how the teeth are manufactured. TCI drag bits generally have tungsten carbide inserts (teeth) that are pressed into the bit cones.

Depending upon the formation, the shape of the teeth fit to be suited is determined:

·         Soft formation: Long-extension, chisel shape inserts

·         Hard formation: Short-extension, rounded inserts

Fixed Cutter Drilling Bits

Fixed cutter bits, on the other hand, consist of cutting elements integrated with the bit bodies. These are designed to excavate holes by shearing formations rather than cutting or gouging them how rolling cutter bits work. These bits do not have moving parts such as cones or bearings and their components are built of bit bodies fabricated from steel or tungsten carbide alloy and fixed blades integrated with abrasion-resistant cutters. The cutters in the bits that are available on the market are PDC cutters and natural or synthetic diamond cutters.

The improvements in the fixed cutter bit technology over the years have enabled the PDC bits to drill almost any kind of formations, from soft to hard.