Author: nicolas

Statistiques du site bestdrillingbits

Mieux maitriser notre taux de transformation ?

Le taux de transformation en règle général

Sur un site de e-commerce où le client peut payer en ligne, le Taux de transformation s’obtient en croisant le nombre de visiteurs du site avec le nombre de commandes enregistrées, en pour cent, sous forme de ratio : taux de transformation = commandes X 100 / visiteurs.
En clair, plus le taux est élevé, plus on a envie d’acheter chez vous.

le taux de transformation adapté à notre fonctionnement : La conversion du Devis à la Commande

Dans notre cas précis et compte tenu du fonctionnement de notre site où le paiement en ligne n’est pas possible et l’inexistence d’un vrai processus logistique, nous parlerons plutôt d’un taux de conversion du devis à la commande pour mesurer notre performance.

Il s’agit de la conversion des demandes de devis enregistrées sur le site, traitées par nos commerciaux qui sont croisées avec le nombre de commandes ferme

taux de conversion BestDrillingBits = devis X 100 / commandes.

Le taux de transformation moyen pour un site e-commerce

La FEVAD a publié un taux moyen de transformation par visite de 2,5 % en 2013 pour un site de vente à destination du grand public .

Ce chiffre cache cependant une grande disparité comme le démontre le baromètre des performances e-commerce par secteur de Kantar Media Compete et Google :

taux de transformation moyen pour un site e-commerce

Des pistes pour améliorer notre performance

– NOTRE TRAFIC EST-IL QUALIFIE ?
– NOTRE OFFRE EST-ELLE COMPLETE et COMPETITIVE ?
– SOMMES-NOUS PRÊTS POUR LE E-COMMERCE ?
– QUELS SONT NOS ACTIONS MARKETING et RELATIONS CLIENTS (avant, et après devis, commandes, visites…) ?

what about our Re-Tip Steel Tooth or TCI Tricone Drill Bits?

Our Re-tip tricone bits are gently used bits that usually come from the oil fields.

They are refurbished for use in non-oilfield rotary applications, such as water wells, HDD, and construction type drilling.

These bits offer significant cost savings over new bits.

We offer a wide range of premium, oil field quality re-tip steel tooth bits in different sizes.

Our Re-tip bits are available for use in soft, medium, and hard formations.

6" left in the hole steel tooth tricone
6″ left in the hole steel tooth tricone

Three Wings bits Range

Three wings bits tend to drill faster whereas four wings bits are longer lasting, more durable, and drill a straighter hole.

We propose two types of blade bits : Chevron-type three wings bits and Step-type three wings bits.

Chevron type drag bits are recommended for drilling in slightly harder and more consolidated materials than step type drag bits such as hard shales, limestones, and tougher gravels.

Regular Step bits have smaller cuttings whereas Heavy Step bits are more durable and are used in harder formations. Heavy Step bits have longer and wider steps and contain more carbide for cutting. The quantity of steps is largely determined by the size of bit.

Rotary drilling a concrete block with a 6″ pdc bit

Polycrystalline diamond compact (PDC) drill bits have proven to be economical.
Many contractors have expressed concerns over reduced drill pipe life when using the PDC bits on rotary because of the higher rotating speeds and higher bit torque.

The solidity and strength of PDC bits lends them many advantages that a tricone bit can’t match.
On PDC bits, unlike the tricone bit, there is no movement relative to the bit head. PDC bits shear rock with diamond faced pdc cutters affixed to tungsten carbide.

Most significantly, PDC bits have a longer lifespan which means they don’t need to be replaced as often as tricone bits.

6″1/2 New PDC drill bit
6″1/2 New PDC drill bit

Want this ? Click Here !

DRILL ROD THREAD TABLE

Drill rods usually comes with a variety of threads.
Here is a drill Rod Thread Information Table that can help you for the choice of your drill bit

Line Pipe Rod
Line Pipe Rod
FLUSH JOINT STRAIGHT THREAD
FLUSH JOINT STRAIGHT THREAD

Conventional drill rods are available in mid-weight steel and or aluminum providing you with ergonomic flexibility which will improve your handling capabilities under the most strenuous of conditions. Rod threads for mineral exploration applications are typically WJ type threads, and are used with conventional style core barrels.

DRILL ROD THREAD TABLE
DRILL ROD THREAD TABLE

PDC or PCD drill bit ? what’s the difference ?

PDC means Polycrystalline Diamond Composite or Compact.
PDC are made by combining some layers of polycrystalline diamonds (PCD) with a layer of cemented carbide liner at high temperature and high pressure.
PDCs are among the most rigid of all diamond tool materials.

pdc_cutters on bestdrillingbits.com
pdc_cutters on bestdrillingbits.com

PCD simply means Polycrystalline Diamond : PCD are normally made by sintering many micro-size single diamond crystals at high temperature and high pressure. PCD has good fracture toughness and good thermal stability, and is used in making geological drill bits.
PDC has the advantages of diamond’s high wear resistance with carbide’s good toughness.

pdc cutters on a body in detail
pdc cutters on a body in detail

Here at bestdrillingbits.com , We supply PDC drill bits made with a range of shaped cutters or polycrystalline diamond compacts (PDC) brazed on a body.

PDC Cutters are made from carbide substrate and diamond grit. High heat of around 2800 degrees and high pressure of approximately 1,000,000 psi forms the compact. A cobalt alloy is also present and acts as a catalyst to the sintering process. The cobalt helps bond the carbide and diamond.

As a general rule, large cutters (19mm to 25mm) are more aggressive than small cutters. However, they may increase torque fluctuations.

Smaller cutters (8mm, 10mm, 13mm and 16mm) have been shown to drill at higher ROP than large cutters in certain applications. One such application is limestone for example.

Additionally, small cutters produce smaller cuttings while large cutters produce larger cuttings. Large cuttings may cause problems with hole cleaning if the drilling fluid cannot carry the cuttings up.

(1) or (2) Soft and soft sticky-Highly drillable formations such as clay, marl, gumbo and unconsolidated sands.
(3) Soft-medium-Low compressive strength sands, shale and anhydrites with hard layers intermixed.
(4) Medium-Moderate compressive strength sand, chalk, anhydrite and shale.
(6) Medium hard-Higher compressive strength with non-or semi-sharp sand, shale, lime and anhydrite.
(7) Hard-High compressive strength with sharp layers of sand or siltstone.
(8) Extremely hard-Dense and sharp formations such as quartzite and volcanic rock.

PDC CUTTING STRUCTURE
Very soft (1) to medium (4) formation type pdc bits have one dominant size of PDC cutter. PDC cutting structure is denoted in the following way:
2 – this bit has mostly 19mm cutters
3 – this bit has mostly 13 mm cutters
4 – this bit has mostly 8 mm cutters

Three Wings bits Range

Three wings bits tend to drill faster whereas four wings bits are longer lasting, more durable, and drill a straighter hole.

We propose two types of blade bits :

Chevron-type three wings bits

12″1/4 NEW STEP TYPE THREE-WINGS BIT
12″1/4 NEW STEP TYPE THREE-WINGS BIT

 

and Step-type three wings bits.

Chevron-type blade bit
Chevron-type blade bit

 

Chevron type drag bits are recommended for drilling in slightly harder and more consolidated materials than step type drag bits such as hard shales, limestones, and tougher gravels.

Regular Step bits have smaller cuttings whereas Heavy Step bits are more durable and are used in harder formations.

Heavy Step bits have longer and wider steps and contain more carbide for cutting. The quantity of steps is largely determined by the size of bit.

What is the difference between sealed bearing bits and non-sealed bearing bits in Tricones?

The bearings are what make the cones on a Tricone spin.

There are four common types of bearings:
– standard open roller bearings
– air-cooled roller bearings
– sealed roller bearings
– sealed journal (friction) bearings.

Let’s take a look into these different types of bearings, and try to explain the differences.

11" TCI Tricone Sealed Bearings
11″ TCI Tricone Sealed Bearings

Sealed Roller Bearings have some of the features of the non-sealed open bearings, but longer lifetime because the bearings are sealed with an O’ Ring Seal.

A lubrication and compensator system prevents leakage into the bearing system and stops the possibility of debris blocking the bearing as well as leakage of grease.

 

6" Steel Tooth Tricone Opened Bearings
6″ Steel Tooth Tricone Opened Bearings

Standard open roller bearings are bearings without a seal.

This means that the bearings are open to outside debris, which can enter through the cone.

The advantage of an open bearing bit is that they are usually cheaper. They are ideal for drilling shallow holes, in the hundreds of feet. If drilling deeper holes with an open bearing bit you will probably have to pull it out every couple hundred feet to clean out the debris in the cones to free them up.

The Benefits of PDC Bits : Rotary Drilling Demo with a 17″ 1/2 PDC

Rotary Drilling Demonstration with a 17″ 1/2 PDC Drill Bit we recently provide to one of our custommers in Europe.

The video shows the higher speed penetration, good quality and clear sharpness of drilling of PDC Bit compared to Tricone or Blade Bit.

At Besdrillingbits.com (a Technidrill division) we optimize the designs and perfect the performance of each drill bit, helping operators avoid the delay and expense of a more traditional trial-and-error approach.

Technidrill is a Manufacturer of drill machine components and drill bits from France and Canada. We also supply drill bits like PDC, TRICONE, Blades Bits (Three-wings) with better price, and more than 30000 pcs in stock. – See more at: http://bestdrillingbits.com

What are Leave in the Hole bits used for ?

Leave in the Hole bits are used for foundations, pilings, and anchor type systems where the bit is left in the hole and not retrieved.

BestDrillingBits.com offers New Leave in the Hole Bits.

These bits have been specifically made for leave in the hole applications. They are unthreaded, which makes them less expensive and easier to weld to.

These ARE NOT RE-RUN or REBUILT bits !!!

6" left in the hole steel tooth tricone
6″ left in the hole steel tooth tricone

 

What are the benefits of PDC bits ?

What makes a PDC bit, its features and benefits, and what applications these bits work well in.

 

pdc cutters on a body in detail
pdc cutters on a body in detail

First of all, it’s important to notice the important role of Polycrystalline diamond compact (PDC) CUTTERS.
PDC Cutters enhance the performance of PDC drill bits, making them dynamically stable across a wide range of demanding vertical and directional drilling applications.

Polycrystalline diamond cutter is a unique material posessing high strength, hardness and toughness.
This makes it ideal for numerous material removal (cutting) processes.

PDCs are manufactured using diamond, tungsten carbide, high pressure and heat.
The diagram below shows the process.

detailed diagram of a PDC cutter

 

Contact us for more details.

ABOUT PDC CUTTERS

PDCPolycrystalline Diamond Compact ) cutter bit inserts are sintered with selected diamond powder and tungsten carbide under high temperature and ultra-high pressure.

PDC’s have high hardness, wear resistance and impact resistance, are widely used for oil/gas well drill bit, rock drill and coal mining bitalso could be used for diamond tools for cutting, grinding, polishing.

pdc_cutters on bestdrillingbits.com
pdc_cutters on bestdrillingbits.com

As a general rule, large cutters (19mm to 25mm) are more aggressive than small cutters. However, they may increase torque fluctuations.

Smaller cutters (8mm, 10mm, 13mm and 16mm) have been shown to drill at higher ROP than large cutters in certain applications. One such application is limestone for example.

Additionally, small cutters produce smaller cuttings while large cutters produce larger cuttings. Large cuttings may cause problems with hole cleaning if the drilling fluid cannot carry the cuttings up.

(1) or (2) Soft and soft sticky-Highly drillable formations such as clay, marl, gumbo and unconsolidated sands.
(3) Soft-medium-Low compressive strength sands, shale and anhydrites with hard layers intermixed.
(4) Medium-Moderate compressive strength sand, chalk, anhydrite and shale.
(6) Medium hard-Higher compressive strength with non-or semi-sharp sand, shale, lime and anhydrite.
(7) Hard-High compressive strength with sharp layers of sand or siltstone.
(8) Extremely hard-Dense and sharp formations such as quartzite and volcanic rock.

PDC CUTTING STRUCTURE

Very soft (1) to medium (4) formation type pdc bits have one dominant size of PDC cutter. PDC cutting structure is denoted in the following way:
2 – this bit has mostly 19mm cutters
3 – this bit has mostly 13 mm cutters
4 – this bit has mostly 8 mm cutters