Ulterra is widely recognized as the fastest growing drill bit company in the world, Ulterra is the bit supplier of choice when drillers require a partner with un-matched credibility and a commitment to excellence.
1. PDC Drill Bit Information
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2. Currently in the drilling industry, there are two main categories of drilling bits: rolling
cutter bits and fixed cutter bits. Plus, bit sizes vary from 3-7/8 inch to 36 inches. Rolling
Cutter Drilling Bits, rolling cutter bits, which some may also call roller cone bits or tri-cone
bits, have three cones. Each cone can be rotated individually when the drill string rotates
the body of the bit. The cones have roller bearings fitted at the time of assembly. The rolling
cutting bits can be used to drill any formations if the proper cutter, bearing, and nozzle are
selected. There are two types of them which are milled-tooth and tungsten carbide inserts.
These bits are classified by how the teeth are manufactured:
Milled-tooth bits have steel tooth cutters, which are fabricated as parts of the cone body.
The bits cut or gouge formations out when they are being rotated. The teeth vary in size and
shape, depending on the formation. The following guidelines demonstrate you type of teeth
that you need to select to match with the formations. Soft formation, the teeth should be
long, slender and widely spaced. These teeth will produce freshly broken cuttings from soft
formations.Click here http://ulterra.com/
Hard formation, the teeth should be short and closely spaced. These teeth will produce
smaller, more rounded, crushed, and ground cuttings from hard formations. Tungsten
Carbide Insert (TCI) or Insert bits generally have tungsten carbide inserts (teeth) that are
pressed into the bit cones. The inserts have several shapes such as long-extension shapes,
round shaped inserts, etc. Teeth of the bits are different depending on the formation as
follows: Soft formation, long-extension, chisel shape inserts. Hard formation, short-
extension, rounded inserts. Visit this ulterra.com
3. Fixed Cutter Drilling Bits, fixed cutter bits consist of bit bodies and cutting elements
integrated with the bit bodies. The fixed cutter bits are designed to excavate holes by
shearing formations rather than cutting or gouging formations, such as rolling cutter bits.
These bits do not have moving parts such as cones or bearings. The components of bits are
composed 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 Polycrystalline Diamond Cutters (PDC) and natural or synthetic diamond
cutters. Nowadays, with the improvement that have been made in fixed cutter bit
technology, the PDC bits can drill almost any kind of formations from soft to hard
formation. However, if you plan to drill very hard formations, you might consider using
diamond bits instead. Read more ulterra.
Summary:
Ulterra is widely recognized as the fastest growing drill bit company in the world, Ulterra
is the bit supplier of choice when drillers require a partner with un-matched credibility and
a commitment to excellence.
Visit this site to learn more:
http://ulterra.com/
