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1. The document discusses various types of drilling equipment used for rock drilling including percussion drills, abrasion drills, jackhammers, drifters, wagon drills, diamond bits, and carbide insert bits. 2. It provides brief descriptions of each type of drilling equipment and their uses. For example, it states that percussion drills break rock using repeated impact blows while abrasion drills grind rock using a rotating bit. 3. The document also lists factors that affect the selection of drilling patterns such as the type and strength of rock, depth and size of holes, type of drill, and parameters of explosive blasting.
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Drilling Bit Introduction and bit Selection (Part 1)
(PART 1,2 & 3)
1. Drilling mechanisms
2. Bit classifications (fixed cutter and roller cone bits)
3. IADC code descriptions
4. Tri-cone bits life time
5. Geometrical analysis of roller cone bits
• Fundamentals of bit design
• Basics of cone geometry design
• Oversize angle
• Offset
• Teeth and inserts
• Additional design criteria: tooth to tooth and groove clearances and etc.
• Cone-shell thickness
• Bearings factors
• Rock bit metallurgy
• Heat treatment
• Legs and cones material
• Tungsten carbide materials
• Legs and cones hard facing
• Tungsten carbide grade selection for inserts
• Bearings, seals and lubrication
• Bearing shape
• Bearing precisions and geometry
• Seal systems and seal details
• Dull grading system
6. Geometrical analysis of PDC bits
• PDC materials and constructions
• Matrix materials testing
• Differs between matrix & steel body
• Matrix body bits manufacturing
• Steel body bits manufacturing
• PDC bit design parameters: mechanical, hydraulic, rock properties
• Weld strength of PDC bits and cutters
• PDC cutter manufacturing process
• Tsp cutter properties vs PDC
• The influences of bit profile and profile elements
• PDC forces
• PDC bit stability
• PDC bit steer-ability
• Back rake
• Side rake
• Depth of cut
• Cutter exposure
• Cutter density
• Thermal damage and degradation of cutters
• Cutting mechanics
• PDC cutter substrate and its thickness
• Cutting structure elements
• Single set bladed cutting structures
• Plural set bladed cutting structures
• Dull grading system
7. ROP management based on drilling parameters
• WOB
• Rpm
• Sold content of mud
• Mud weight
• Cutter shape
• Cutters geometry
• Depth
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The document summarizes drilling and blasting equipment used in mining and construction. It describes various types of drills like percussion drills, abrasion drills, and fusion piercing. It also discusses components of drilling like drills, drill bits, and different drilling patterns. The document then explains the blasting process which involves using explosives like dynamite, detonators, fuses, and blasting caps. Proper handling and transportation of explosives is important for safety. The blasting procedure involves making blast holes, inserting charges, tamping, and detonating with a fuse or detonator.
Blast hole drilling rig manufacturers
All our blast hole models feature a sturdy, well designed chassis.
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This document provides information about different types of rock drilling methods. It begins with definitions of rock drilling and the main components of drilling machines. It then describes the three main types of rock drilling: 1) Percussion drilling which includes jackhammers and drifters, 2) Abrasion drilling such as blast hole drills and diamond drills, and 3) Fusion piercing drilling which uses rotating reamers and high-temperature flames. For each type, several examples are given and brief descriptions of how they operate are provided.
Drilling
There are four main drilling methods: percussion, churn, diamond core, and rotary. Diamond core drilling is most useful for mineral exploration as it recovers intact core samples, allowing details about geology and mineralogy. Core logging involves examining core in boxes in geological order to record important rocks and structures. It is an important part of exploration analysis.
Drilling and core logging
There are four main drilling methods discussed in the document: percussion, churn, diamond core, and rotary drilling. Diamond core drilling is highlighted as the most important for mineral exploration because it allows recovery of intact core samples for detailed geological analysis. Core logging involves carefully examining and documenting the core to identify important rock types and structures. Proper core logging is an important stage in mineral exploration projects.
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The document provides information on the history and types of drilling bits. It discusses how the first successful rolling cutter rock bit was introduced in 1909 and improved with meshing teeth in the 1920s. It also summarizes the development of tricone bits in the 1930s, then the introduction of tungsten carbide and PDC bits in later decades to improve drilling efficiency. The document also categorizes different types of drilling bits based on the formation hardness and describes standards for selecting the appropriate bit type.
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Drilling is the process of making holes into hard surfaces like rock. In surface mining, drilling is used for blast hole drilling, core drilling for exploration, and technical drilling. Rotary blast hole drilling involves rotating drill pipes to which a bit is attached to break up rock. The main assemblies of a rotary drill rig include the mast, rod changer, rotary head, pull down mechanism, air compressor, drill pipes, hydraulic system, and dust control components.
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This document discusses principles of surface rock drilling used for excavating rock through blasting. It describes the main drilling methods of rotary and percussive drilling. Rotary drilling uses rotation to cut or crush rock, while percussive drilling uses hammer impacts to break rock. The document compares factors like drilling productivity, efficiency and costs between different drilling rigs and methods. It provides guidelines to selecting the best drilling approach based on hole size and application.
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The document discusses drilling and blasting techniques used in mining and construction. It introduces drilling as a necessary process for loosening hard rock before excavation by filling holes with explosives. Various drilling methods and equipment are described, including jackhammers, drifters, wagon drills, and diamond drills. Factors in selecting a drilling method include rock hardness, depth, terrain, and project size. Blasting terminology and methods such as controlled, primary, and electrical blasting are also outlined. Precautions for blasting include failure prevention, water seepage, skilled supervision, and maintaining safe distances.
Basics of drilling 2
(1) Rotary drilling involves rotating a drill bit to break rock using either a scraping or crushing action. Compressed air is used to remove cuttings from the hole.
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The document discusses the history and types of drill bits used in drilling oil and gas wells. It notes that older percussion drilling methods took many years per well while Howard Hughes' rotary bit revolutionized the industry. Drill bits are designed to crush and break rock, and may use fixed cutters or roller cones. Today, polycrystalline diamond compact (PDC) bits are widely used, with some bits combining steel, tungsten-carbide, and diamonds. The International Association of Drilling Contractors developed a classification system for bits in 1940. Different types of bits include matrix, steel, and hybrid designs. Bit evaluation involves careful documentation of performance and wear.
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This document discusses various rock drilling methods. It defines rock drilling and lists its objectives such as exploration and production. The document then classifies and describes several drilling methods - auger drilling, reverse circulation drilling, diamond core drilling, air core drilling, jumper bar drilling, jack hammer drilling, churn drilling, direct push rig, hydraulic rotary drilling, and sonic drilling. It provides details on the working principles, advantages, and limitations of each method.
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This document discusses different types of drill bits used in drilling operations including their advantages and disadvantages. It summarizes that there are two main types of drill bits: drag bits and roller cutter bits. Drag bits have fixed cutting blades while roller cutter bits have rotating cones containing cutting elements. The document then describes various bit designs within each category including steel tooth bits, tungsten carbide insert bits, diamond bits, and polycrystalline diamond compact bits. It concludes by discussing factors that affect bit performance and wear such as bearing wear, gauge wear, and tooth wear or loss.
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Drill.pptx
The document discusses different types of drilling bits used in rotary drilling. It describes drag bits, which were the first bits used but are no longer common. The main types discussed are roller cone bits and fixed cutter bits (diamond and polycrystalline diamond bits). Roller cone bits have rolling cones with teeth that crush and grind the rock. Fixed cutter bits have diamonds or polycrystalline diamond inserts that cut the rock. The document provides details on the design and operation of these different bit types and how to select, operate, and evaluate their performance.
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The document discusses different types of drill bits used in drilling operations, including drag bits and roller cutter bits. It describes the components and functioning of each type of bit. The document also covers drill bit classification systems used to categorize bits based on attributes like cutter type, profile, and intended formation. Drill bits are graded after use based on tooth wear, bearing wear, and gauge wear.
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- 2. SUBMITTED BY 1. BICHVE MAYUR B. 149740306007 2. BILADE SWAPNIL K. 149740306008 3. JADAV DARSHAN R. 149740306029 GUIDED BY Dr. P.R. Marftiya
- 5. TERMINOLOGY USE FOR Drilling 1. Percussion Drill. 2. Abrasion Drill. 3. Jack-Hammer of Sinker. 4. Drifter. 5. Wagon Drill. 6. Bit. 7. Diamond Bit. 8. Carbide Insert Bit.
- 6. This is a drill which breaks rock into small particles by impact from repeated blows. It can be powered by compressed air or hydraulic fluids. Percussion Drill
- 10. Abrasion Drill This drill grinds rock into small particles through the abrasive effect of a bit that rotates in the hole.
- 11. Abrasion Drill
- 12. Jack- hammer of sinker This device is an air-operated percussion-type drill that is small enough to be handled by one worker.
- 15. Drifter A Drifter is an air-operated percussion- type drill, similar to a jack-hammer; it is so large, however, that it requires mechanical mounting.
- 16. Drifter
- 17. Drifter
- 18. Drifter
- 19. Drifter
- 20. Wagon Drill This is a drifter mounted on a mast supported by two or more wheels.
- 21. Wagon Drill
- 22. Wagon Drill
- 23. Wagon Drill
- 24. BIT This is a portion of a drill which contacts the rock and disintegrates it.
- 25. BIT
- 26. BIT
- 27. BIT
- 28. BIT
- 29. DIAMOND BIT The diamond drill is a rotary abrasive-type drill whose bit consists of metal matrix in which a large number of diamond are embedded. As the drill rotates, the diamonds disintegrate the rock.
- 30. DIAMOND BIT
- 31. DIAMOND BIT
- 32. DIAMOND BIT
- 34. CARBIDE INSERT BIT Some types of rock are so abrasive that steel bits must be replaced after they have drilled only a few inches of the hole. - It is more economical sometimes to use carbide-insert bits because the cost of the steel bits and lost time to production in changing bits can be so great. - These bits are illustrated in the following figures.
- 38. Factors affecting selection of drilling pattern 1. Type of rock 2. Depth of hole 3. Size of hole 4. Size of drilling 5. Type of drill 6. Size of rock layer 7. Strength of rock 8. Quantity of explosive to be filled for blasting 9. Speed of explosion 10. Quantity of stemming 11. No. Of holes 12. Arrangement of hole