Hole Openers can be quoted with new/unused surplus or used Steel Tooth or TCI Cutters Hole Openers.
At some point it may be necessary to increase the size of a pre-drilled hole to a larger diameter or to drill large diameter holes. Hole opener bits are designed specifically for this purpose. Bits are custom manufactured in a wide range of styles to meet field requirements. A custom hole opener is an effective way of enlarging holes, hence the name "Hole Opener".
The Hole Opener Advantage
Straighter Holes - By drilling a smaller hole with a "pilot" bit, then attaching that said bit onto the bottom of the the hole opener. The hole opener will follow the path of the hole drilled by the smaller bit.
Larger Holes with Smaller Rigs - By drilling a hole in stages, larger holes can be drilled with smaller rigs. A smaller hole requires less power.
Replacing Cutters and Cutting Cost - On most Hole Opener designs, the cutters can be easily replaced. The cost to replace a cutter is a fraction of the cost to replace a large tricone rock bit.
Cost of Large Rock Bits - Larger diameter rock bits not only cost a lot, they can be difficult to find. A more economic solution is to use a hole opener that uses smaller tricone rock bit segments..
Flexability - Hole Openers can be fabricated in just about any size, and can be configured to drill through any formation.
Operational Considerations
Drilling Weight - The choice of drilling weight is determined based on the recommendations of the bit manufacturer and the number of cutters on the hole opener.
Number of Cutters - The number of cutters placed on a hole opener is governed by the following facts:
1.Maximum number which will fit around the perimeter.
2.The greater the number of cutters, the less the weight, which therefore reduces the penetration rate.
3.In softer formations, less weight is needed to penetrate.
4.The greater the number of cutters, the smoother the tool will run.
5.The greater the number of cutters, the greater the cost.
6.The greater the number of cutters, the longer the cutters will last
Rotary Speed - Maximum speed is determined by the manufacturer's recommendation and the calculation to account for the linear distance the cutter is moving per revolution.
Hole Cleaning - A frequently over looked point of hole opener operation is hole cleaning. The volume of cuttings to remove from a hole increase by a squared factor with an increase in hole diameter.
Drill Bits
TCI 437 Soft formation TCI Tricone bits The 437 tci bits are used to drill low compressive strength very soft formation tci bits maximize the use of both conical and chisel tungsten carbide inserts of large diameters and high projection. This cutting structure design combined with maximum cone offset ,results in high bit penetration rates.the deep intermesh of cutter rows prevents bit bailing in sticky formations. TCI 517 medium formation TCI Tricone bits The 517 features aggressive chisel tungsten carbide inserts on the heel rows and inner rows this design provides a fast drilling rate and added cutting structure durability in medium to medium hard formations the HSN rubber o-ring provides adequate sealing for bearing durability. TCI 617 TCI tricone bits 617 features robust chisel tungsten carbide inserts on the heel row and conical on the inner rows .this design provides a fast drilling rate and added cutting structure durability in medium to medium hard formations . the HSN rubber o-rin provides adequate sealing for bearing durability . TCI 637 can be used to drill hard and abrasive formations wear –resistant tungsten carbide inserts are used in the outer rows to prevent loss of bit gauge. maximum numbers of hemispherical-shaped inserts are used in all rows to provide cutter durability and long life.
Supplier: Urea 46%, frozen chicken, frozen beef, sugar icumsa 45, soybean, yellow corn, maize, npk for agriculture, zeolite, kaolin, silica, feldspar, silicate sodium glue, lamination based water glue
Product name: Deep hole drilling and boring machine Detailed product parameter description: Product model: Texas deep hole drilling and boring machine (T2120) Main technical specifications and performance Technical specifications parameter Working scope Maximum boring diameter 200mm Drilling diameter range N40-N80mm Maximum boring depth 1000-8000mm Working support diameter range 60-300mm Spindle Spindle center height 350mm Headstock spindle bore 75 Spindle front end taper hole 85mm1:2 Spindle speed range 61-1000r/min 12 types Feed Feed speed range (stepless) 5-1000mm/min Fast moving speed of carriage 2m/min Motor Main motor power 30kW Hydraulic pump motor power 1.5kW Power of fast motor of carriage 3kW Feed motor power 4.4kW Cooling pump motor power 5.5kW4 groups other Cooling system rated pressure 2.5MPa Cooling system flow 100 200 300 400L/min Rated working pressure of hydraulic system 6.3MPa The oiler can withstand the maximum axial force 6.3KN Maximum preload force of the oiler on the workpiece 20KN Dimensions and weight length parameter 1000 2000 3000 4000 5000 6000 7000 8000
Supplier: 304 stainless steel pipes, carbon steel pipes, galvanized steel pipes, seamless pipes, stainless steel pipes, used drill bits
Buyer: Used drill bits and drill pipes, tubing, casing
Drill Machine
Horizontal Hole openers, also known as HDD reamer, are used to enlarge the diameter of a pre-drilled hole. They are custom built to specification, and come in a wide variety of sizes. HDD is used when trenching and excavating is not practical. This drilling technology allows for a steerable trenchless way to drill underground. There are three stages, the first stage is to drill a small diameter pilot hole. The second stage is enlarge the hole with a larger diameter cutting tool called an HDD Reamer, Rock Reamer or Hole Opener. The third stage is inserting the casing pipe or other product into the enlarged hole. Features: 1. The product is used for the reaming of the oil, gas, petrochemical, sewage, power and fiber optic pipelines in the no-dig horizontal directional drilling. 2. Directional crossing operation is widely used in unexcavated project. 3. Small torque force can be applied to hole opening with drilling machine. 4. Hole opener includes body and the cutter. 4 different types of cutter can be assembled to the body in one size for opening the hole in 4 sizes. 5. Cutter can be divided into MT type used in soft formation and TCI type used in hard formation.
Power Screw Bits
What is the feature of 17 1/2tricone drill bit? 1.The strength and wear resistance of inserts are improve by using carbide inserts with high strengthand high wear resistance. 2.Surface of the high precision bearing heat treated by using advanced heat treatment process to improve the load capacity and service life of the bearing. 3.The service life of the bearing is further extended by adopting harder and mort wear resistant material for thrust bearing. 4. Preventing reflux structure has dual function, it can avoid air counterflow and dust entering into bearing when the air-compressor stop working accidentally, and separate air and water in order to avoid water entering into bearing when it works normally to prolong the life of bearing 5.This series oil well rock bit use Sealed roller bearing structure. With rollers arranged in grooves recessed in the cone body, the size of the bearing journal is increased. 6.Thrust bearing surfaces are hardfaced and treated with friction reducing technology. 7.This series oil well rock bit use Journal bearing. Hardfaced head bearing surface. Cone bearing inlaid with friction reducing alloy and then silver-plated. The load capacity and seizure resistance of the bearing is greatly improved. What is the superiority of 17 1/2tricone drill bit? 1. It can recycle; it just consume one third of its lifespan in oil exploration process. 2. It can withstand high wob under the conventional drilling rate.
