Deep Hole Drilling TBT Tools, Accessories And Grinding Machines
TBT Deep Hole DrillingTools, Accessories andGrinding Machines
About us2Customers all over the world associate the company TBT Tiefbohrtechnikwith reliability, quality, precision and customer service. Indeed, this hasbeen the case for over 35 years.Founded in 1966 in Dettingen a. d. Erms, the company specialised rightfrom the start in the manufacturing technology of deep hole drilling. Thecompany’s aim has always been to supply machines, tools and servicesfrom one source with professional expertise.The company’s rise to market leader confirms that our customers appreciate this corporate policy.TBT combines the flexibility, dedication and customer-oriented approachof a streamlined medium-sized company with global presence. We havesubsidiaries or experienced representatives in virtually every majorcountry in the world. Entrusted to our highly-qualified and dedicated staff,your deep hole drilling tasks are in safe hands.
ContentsAbout us2ProceduresSealing case procedureImmersion procedureProcedures onmachining centres678ToolsSingle-lip drill, brazedSingle-lip drill,full carbide versionCutting edge geometryCircumferential shapeDouble-lip drill1010Special toolsCounterbore toolsStep drill141415AccessoriesDrill bushDrill bush holderSealing discWhip guide bushSealing case202021222324Other accessoriesClamping coneTool holderTool setting device25252526Grinding machinesUniversal grinding machineTandem grinding machineGrinding unit27272727Cutting data/approx. values28ServiceRepair serviceRetipping, headRetipping, head/shankRegrinding serviceCoating serviceOrder form32323232323233Directions, contact36911121314Clamping sleeves(clamping elements)16SpecificationsSurface qualityRunoutCooling lubricants (coolant)Feed/cutting speed18181819193
Quality4Quality is a foundation of our corporate philosophy, shaping both ourservices and our products. It is our stated aim to customise the product toyour specific requirements and to meet the highest standards in terms ofquality - as the market justifiably expects.Our company’s certification conforming to DIN EN ISO 9001:2000 and VDA6:4 demonstrates that the sequences of operation are clearly structuredand that our quality management system is practised and fostered at alllevels of the company.We see ourselves as your partners, always aspiring to a long-term workingrelationship with you. In seeking open and frank dialogue with you, webelieve that our professional expertise and experience will merge withyours to become one unit. The result - integrated, pragmatic solutions.Thanks to our dedicated staff we can guarantee precision and punctuality.
Quality5
ProceduresHigh-performance precision drillingTBT has made a decisive impact in shaping and developing deep holedrilling technology. In the field of high-performance precision drilling thesingle-lip drill has proved its practical value thanks to the diametertolerances it can achieve, the quality of the surface finish and the minimallevel of drift. In many applications, therefore, the deep drilling principlereplaces drilling and reaming with one pass – and does so with extremelyhigh process reliability.Some applications, however, require more than just deep drilling. Onaccount of its combination of precision and high drilling capacity, thesingle-lip drill is also admirably suited to short and medium depth holes.Single-lip drills are one-edged tools which are guided through a jig bushas they bore. Not only can these drills be used on deep hole drill machines,but also on machining centres or automatic lathes, for example. Thecooling lubricant (coolant) travels from the machine through the inside ofthe tool to its cutting edge.6In addition to cooling and lubricating the drill head, the pressurised coolinglubricant also flushes the chips from the hole.As such, deep hole drilling is a logical and efficient process for achievingprecise drilling results.TBT single-lip drills are made for every drill diameter (1/1,000mm graduations) from 0.6 mm to well over 50 mm and in total lengths of up to approx.6,000 mm.After assessing the material requiring drilling, the machine used by thecustomer and the specific drilling situation, we develop and optimise thetools you require for the task. It may be the standard version; it may be forwidening existing bores; a step tool for making accurate stepped boreswith minimal centre offset or a special tool for drilling a specific surface;without coating or a version with coating and, for the most exactingdemands, with a PCD-tipped tool cutting edge.TBT will advise you and then turn your requirements for the head andshank into reality using ultra-modern design and manufacturing processes. The tool head and shank are brazed with the correct clampingelement to fit your machine.TBT has several hundred different kinds of clamping element in stock. Wealso offer a 48-hour delivery service.
Sealing case procedure Sealing case procedureThe sealing case procedure uses solid single-lip boring tools with diameters ranging from 1.9 mm to approx. 50 mm. The tool lengths can reachapprox. 6,000 mm. Consequently the tools are guided through stays. Thedistance of the steady rests should not exceed 40 –50 x tool Ø.The machine spindle is sealed via the sealing case or the sealing disclocated inside it.The cooling lubricant (coolant) is supplied through one or more holes (orKidney shaped oil hole) inside the tool. The (coolant) and chip mixture isdischarged through a longitudinal slot (bead) on the outside of the toolshank.The cutting edge spans the radius of the hole to be drilled. The tool tool iscomprised of the drill head, beaded shank and clamping element (driver/sleeve). The “classic” single-lip drill has a solid carbide head withs cuttingedge and guide pads.7
Immersion procedure 8 depths Immersion procedurefor shallow drillingA Tool length (oal) from Solid single-lip drilling tools are used for diameters rangingB Drilling depth not depth 0.6 mm – 50 mm. Sincesteady rests areused, the drillingin theC Referencedimensionimmersion procedure is limited to a maximum depth of 160 mm.The procedure is mainly suitable for making short holes. Tools less thanØ 2 mm are made entirely from carbide. Solid carbide tools are increasingly being used for diameters ranging from 2 to 12 mm and relativelyshallow drilling depths.The machine spindle is sealed by the immersion sleeve, or immersionspindle.The cooling lubricant (coolant) is fed inside the tool through one or moreholes (or nodule). The KSS and chip mixture is discharged through alongitudinal slot (bead) on the outside of the tool shank.The cutting edge spans the radius of the hole to be drilled. The tool iscomprised of the drill head, beaded shank and clamping element (sleeve).The “classic” single-lip drill has a solid carbide head with cutting edge andguide pad.DAdjustment distance dependingon drill diameter
Deep hole drilling on machining centres Length calculationThe trend for multistation machining has led to increasing use of single-lipdrills on conventional machine tools, e. g. machining centres. On accountof its combination of precision and high drilling capacity, the single-lip drillis also used for short and medium depth or stepped holes.Unlike deep hole drilling machines, drill bushes are very rarely used inconventional machine tools; for this reason a pilot hole has to be drilled inthe workpiece beforehand in order to use a single-lip drill.This hole has to meet specific requirements in terms of, e. g. diametertolerance and guide length. Our experts at TBT can advise you in selectingsuitable tools from the range we produce, e. g. single-lip drill, step drill orsolid carbide drill.1st pass pilot holelength 1-1,5xØØ H8workpiece2nd pass deep hole drillingØCooling lubricantcircuitHigh-pressure pumpFilter9
Tools: Single-lip drill, brazed 10Single-lip drill with brazed-on drill headSingle-lip drills with brazed-on drill heads comprise a solid carbide drillhead or a steel drill head with carbide inserts, drill shank made from hardened and tempered steel and clamping sleeve made from steel. The drillhead and clamping sleeve are brazed to the tool shank.Diameter range1.9 – 50.0 mmLengthUp to 6,000 mmEffective tool length40 – 50 x ØCooling lubricant (coolant) requiredDeep hole drilling oil preferredFilter resolution10 – 20 µmViscosityØ 1.9 – 50 mm 10 – 20 mm² / SSafety informationWe do not accept liability for damage resulting from improper handling ofour deep hole drilling tools, operating errors, deficient machine conditionsor improper use of our tools. The relevant instructions for use, emissionand safety regulations must be observed.We will be happy to advise you!
Tools: Solid carbide single-lip drill Solid carbide single-lip drillThe drill head and shank are made from one carbideslug. This tool is particularly process-reliable andefficient. Longer tool life is achieved on account of lesstorsional vibration.The clamping element (steel) is made with a straightening pin on this type of tool. The clamping element(sleeves) and drill shank are brazed together.Diameter range0.6 – 12.0 mmLengthUp to 350 mmEffective tool length80 – 100 x ØCooling lubricant (coolant) requiredDeep hole drilling oil preferredFilter resolution5 – 10 µmViscosityØ 0.6 – 2.0 mm 7 – 10 mm² / SØ 2.0 – 12 mm 10 – 20 mm² / SSafety informationWe do not accept liability for damage resulting from improper handling ofour deep hole drilling tools, operating errors, deficient machine conditionsor improper use of our tools. The relevant instructions for use, emissionand safety regulations must be observed.We will be happy to advise you!11
Tools: Cutting edge geometrySymbolAxis AAxis BAxis Cmeasurecomment Standard grind section for singlelip drills with Ø 5 to 30 mmAxis BAxis CmeasurecommentApply our experience to yourapplications. Axis AOur cutting edge geometriesalso enable difficult drilling jobsto be carried out. SymbolTBT cutting edge geometriesare the result of over 40 years’development and research workby our mechanical engineering,tool design and machiningservice departments. With TBT standard grind facets virtually any drilling tasks can be executedsuccessfully. When drilling deep holes in particularly longchipping materials and in materials that are difficult to machine it is generally necessaryto use special grind facets, in some cases with chip sep- arators/chipbreakers. We are already making, redesigning or customising a number ofdifferent grind sections. The standard grind sections for TBT single-lipdrills depend on the drill diameter and the material being drilled. TBTuniversal and tandem grinding machines are recommended for regrindingtools.Changes to the cutting edgegeometry have a direct impacton bore quality and processreliability. Cutting edge geometryChanges to the cutting edge geometry of the single-lip drill can affect thedrilled surface, the chip shape, bore tolerance, drill centring, chip removal,surface quality and tool life. 12 Standard grind section for singlelip drills up to Ø 5 mm
Tools: Circumferential formsStandard circumferential formsThe circumferential shapes developed by TBT are specially tailored to therespective application.Circumferential form G60Standard form suitable for mostmaterials and drilling jobs. Withthis shape the tool diameter can nolonger be measured after manufacture.The standard starting point of theguide pad is 60 , but can rangefrom 45 to 80 .Circumferential form CThis form is the preferred choicefor narrow tolerances in terms ofthe bore diameter and finish. Someof the guide pads are convexground. The spherical grindingheel can protrude over the guidepads.Circumferential form Aform for awkward approaches todrilling work or cross drilling,machining of soft materials andpoor performance of coolinglubricant. Often used on the cyl.guide part (long drill head).Circumferential form D45The form is almost exclusivelyused for soft materials, such asgrey cast iron, graphite, . ,especially in conjunction withnarrow bore tolerances.Circumferential form SCircumferential formE185Circumferential form F13Circumferential formGA80
Tools: Double-lip drill/Special tool: Counterbore tool 14Double-lip drillDouble-lip drilling – a procedure related to deep holedrilling – is used for diameters ranging from approx.4 to 25 mm and with length/dia. Ratios of up to max. 30to 40. The tools are two-edged and normally have twoguide pads in addition to the two spherical grindingheels. These tools are either solid carbide or they havea solid carbide drill head and steel tube or solid steelshank. Its similarity to single-lip drilling (deep holedrilling) is derived primarily from the fact that they have the same coolinglubricant circuit. The cooling lubricant (coolant) is fedinside the tool through two cooling channels (holes).The coolant and chip mixture is discharged throughtwo longitudinal slots (beads) on the outside of the toolshank. On account of the relatively limited amount ofspace in the swarf chamber, these tools shouldpreferably be used for short-chipping materials. Counterbore toolSpecial tool for finishing existing through-holes.The chips are removed in the feed direction.
Special tools: Step drill Single-lip step drillUsed to include several bore diameters in one pass.Meets the highest demands in concentricity and coaxialapplications. Solid carbide single-lip step drillUsed to include several bore diameters in one pass.Meets the highest demands in concentricity and coaxialapplications.Maximum tool length 350 mm.15
Clamping sleevesClamping element overviewNameDiagramØ 10 x40 Clamping sleevesIn addition to manufacturing a large selection of standard clampingsleeves, TBT also customises clamping sleeves to your special requirements (from a diagram or sample).L1L2X404645MDrill rangeArticle 5847.51.900-12.09950080007078341.900-19.7995007000 Ø 16 x45 Ø 16 x50Ø 25 x70 Ø 10 x40 Ø 16 x45Ø 16 11.900-32.9995005024 Ø 25 x70 16 Ø 16 x50 Ø 12.7 x38.1 Ø 19.05 x69.8Ø 25.4 x69.8 Ø 31.75 x69.8Ø 38.1 x69.8 Ø 12.7 x38.1 6.0-30.999500519369.810057.133.0-40.05006386 Ø 19.05 x69.8 Ø 25.4 x69.8 Ø 31.75 x69.8Ø 38.1 x69.8Ø 10 x68 9411245M16x1.51.9-19.7995006095 Ø 25 x112VDI 3208 Ø 10 x68Ø 25 x112 Ø 16 x90 9500619711214245M16x1.519.8-24.7995006198 Ø 16 x90 VDI 3208
Clamping sleevesClamping element overviewNameDiagramL1Ø 10 x40Clamping sleevesIn addition to manufacturing a large selection of standard clampingsleeves, TBT also customises clamping sleeves to your special requirements (from a diagram or sample).L2XM40 Ø 12 x45 Ø 16 x48Ø 20 x50Ø 25 x56DIN 1835 Form AØ 32 x60Ø 10 x40Drill rangeArticle 48361.9-11.3995005872 Ø 12 x45Ø 16 x48Ø 20 x50DIN 1835 Form B Ø 25 x56 Ø 32 x60Ø 40 x70DIN 1835 Form BØ 10 x40Ø 12 x45 Ø 16 x48 Ø 20 x50Ø 25 x56DIN 1835 Form EØ 32 x60Ø 10 x40 Ø 12 x45 Ø 16 x48Ø 20 x50DIN 6535 Form HEØ 25 x 56Ø 16 x112 Ø 20 x126 Ø 28 x126 Ø 36 x 162 Ø 16 x80 Ø 10 x60Ø 25 x100 Ø 25 x100 Ø 16 x80 .8-24.7995005838 Ø 25 x50Ø 35 x60 Ø 16 029.51.9-28.999500588117
SpecificationsTitleTwist drillingReamingBroachingHoningDeep hole drillingArithmetical centreline average RaSurface quality (standard values)18Surface qualityThe radial energy produced duringdrilling presses the tool Guidepads against the inner wall of thebore, Thereby smoothing thesurface of the wall. This effect Canbe increased by the design of theguide pads.The result is anexcellent surface finish.This smoothing process can beenhanced even more by adjustingthe design of the guide pads, givingan outstanding quality to thesurface finish.Runoutin mm1,41,21,00,80,60,40,200500rotating tool1000Drillingdepthin mmCounterrotating workpieceRunout (standard values)Diameter toleranceDiameter tolerances of up to IT 7are achievable in production withTBT single-lip drills.Bore runoutThe drill bush on the workpiece, orthe pilot hole and the hole itself,dictate precisely restrictedguidance for the single-lip drillthus limiting the drift to a minimum.
SpecificationsCoolant pressurein barCooling lubricants (Coolant)An efficient and correctly dimensioned coolant system withfiltering is required to guaranteethe economic viability and processreliability of deep hole drilling.Another consideration is therequirement to adhere to aminimum fat content (depends onthe material) when using emulsion. It is advisable to use deephole drilling oil for small drilldiameters and high-alloy steels.Cooling lubricant (coolant) quantityin 1/min1201008060402000456 7 8 9 101215202530 Drill Øin mmCooling lubricants (coolant)(approx. values)190,40,350,30,250,20,150,1020406080100Cast aluminiumGrey cast ironNitriding steelHeat/corrosionresistant steels120 140 160 180Cutting speed in m/minAluminum alloy,non-ferrous metals0,0500510Tempered steelCast aluminiumCase-hardened steelGrey cast ironTitanium, nickel,Inconel, HastelloyNitriding steel andheat/corrosionresistant steelsCutting speed (approx. values)Cutting speedAn exact table showing the different cutting speedsand feed values can be found on pages 28 – 31 (seealso virtual feed and speed calculator at www.tbt.de).Feed (approx. values)152025Aluminum al loy,non-ferrous metals30Drill Øin mmTempered steelCase-hardened steelTitanium, nickel,Inconel, Hastelloy
Accessories: Drill bushes 20Machining accessories, drill bushCentering guide for start of drilling until the tool cancentre itself in the hole. Available in steel or carbide.Steel/carbide drill bushesTBT standardSteel/CarbideTool ØD n6L8TBN 2302 / 23100.9000.9993TBN 2302 / 23101.0001.8994TBN 2302 / 23101.9002.6995TBN 2302 / 23102.7003.3996TBN 2302 / 23103.4004.0997TBN 2302 / 23104.1005.0998TBN 2302 / 23105.1006.09910TBN 2302 / 23106.1008.09912TBN 2302 / 23108.10010.09915TBN 2302 / 231010.10012.09918TBN 2302 / 231012.10015.09922TBN 2 302 / 231015.10018.09926TBN 2302 / 231018.10022.09930TBN 2302 / 231022.10026.09935TBN 2302 / 231026.10030.09942TBN 2302 / 231030.10035.09948TBN 2302 / 231035.10042.09955TBN 2302 / 231042.10048.09962TBN 2302 / 231048.10055.09970TBN 2302 / 231055.10063.00078Order note:Example order: drill bush Ø 5.0 SteelOrder text: drill bush as per TBN 2302 5.0 x 8 x11d g61114182633425267Please state tool Øwhen ordering
Accessories: Drill bush holder drill bush holder 190005-7111-01 drill bush holder 190005-7111-15Machining accessories, drill bush holderHolds the Drill bush in place for positioning on theworkpiece.drill bush holderDrill 0063.00078Order note:Please state machine no. and drill diameter when ordering21
Accessories: Sealing discs Sealing disc TBN 5404 Sealing disc TBN 5416Machining accessories, sealing discForms a seal between the swarf chamber and spindle.22sealing disc TBN 5404TBT standardTool Ød2bdPlease state toolØ when orderingTBN 54042.9005.249207TBN 54045.25014.4493211TBN 540414.45025.9994012TBN 540426.00040.9999012Vulkollan sealing disc TBN 5416TBT standardTool ØDbdTBN 54163.100-15.599324TBN 541615.600-25.999404Please statetool Ø when orderingTBN 541626.000 904
Accessories: Whip guide bushes Whip guide bush Form whip guide bushMachining accessories, whip guide bushUsed to guide and stabilize the tool.23Whip guide bushesTBT standardTool ØDD1LL1dTBN 54061.900-16.39920262012TBN 54071.900-25.99930382616TBN 54081.900-34.00045502616Please statetool Ø whenorderingForm whip guide bushesTBT standardTool ØDD1LL1dTBN 54201.900-16.39920262012TBN 54211.900-23.79930382616Please statetool Ø whenordering
Accessories: Sealing case Sealing case 302200-7101-01 Sealing case 100700-7101-01Machining accessories, sealing caseHouses the sealing disc and whip guide bush.24302200-7101-01Sealing case for Ø 20 whip guide bushes without bearingArticle no.Drill Sealing case for Ø 20 whip guide bushes with bearingArticle no.Drill 100700-7101-01Sealing case for Ø 30 whip guide bushes without bearingArticle no.Drill 100700-7104-0116.40025.99927Sealing case for Ø 30 whip guide bushes with bearingArticle no.Drill 100700-7104-0016.40025.99927Order note:Please state machine no. and drill diameter when ordering
Accessories: Clamping coneClamping coneMachining accessories, clamping coneUsed to clamp and centre rotationally symmetricalworkpieces.Tool HolderMachining accessories, tool holderClamping/anchoring the tools.25
Other accessories: Tool setting device General view of length measuring system accessories, tool26 Machining settingdevice The lengthmeasuring systemis aThe cable connecting the mag precisionsystem for setting thenetic sensor to the positioning length of drills. The above diagramshows the length measuringsystem and its components.The adapter (4) holds the pluggauge and the drill being measured. In the case of relatively longlengths, the drills are supported bythe sliding V-blocks (6) which arealso height-adjustable andlockable.The moving carrier plate (9) withthe mounted magnetic sensordetermines the zero point andmeasures the length. The measurement is displayed on thepositioning indicator (7). The angleof incline of the positioningindicator is adjustable and cantherefore be adapted to the lightingconditions and the size of theoperator.indicator is routed and enclosed ina cable drag chain (15).The measuring length can beextended by moving the stop plate(8) to the end of the movingcarrier plate (9).Different versions of the lengthmeasuring system can be supplied but the description andoperation are essentially thesame. Table-top version Stand-alone version withbase, drill support and plasticboxes for small parts.123456Base holderSupport boltHolder for adaptorAdaptorPlug gaugeV-blocks789101112131415Positioning indicatorStop plateMoving carrier plateMagnetic sensorMagnetic tapeLinear guideSupportsFastening screwsCable drag chain
Grinding machinesUniversal grinding machineGrinding machineVarious regrinding devices allowyou to regrind your single-lip drillyourself. Our many years ofexperience in this area have beenpositively invested in the designand production of our grindingmachines, jigs and associatedaccessories.Tandem grinding machineA high-precision, double-spindlegrinding machine, designed foraccurate resharpening of relativelylarge single-lip drills with thesame cutting edge geometry anddiameters ranging from 2.0 toapprox. 20 mm.Up to five different tool positionsenable presetting of all anglesrequired for five facet grinding,making grinding simpler. Thelateral oscillation of the spindleunit is electromechanical.Tandem grinding machine Cutting edge geometry needonly be set once Fully exchangeable adaptorplate for differentgeometries and for settingthe geometries Eight different tool holdercassettes provide coverageof the whole range of tooldiametersAnother accessory available is adry dust extractor for efficientremoval of the wheel swarf fromthe work area.TBT universal grinding fixtureOur universal grinding fixture canbe used on conventional toolgrinders. The advantages of thechucking fixture, which we alsouse on our TBT universal grinder,are obvious: Compact fixture adjustable inthree axes for grinding allstandard geometries forsingle-lip drills Fixture supports extra-longsingle-lip drills Two different clamping ranges(2.5 - 32 mm and 5.0 - 45 mm)cover a wide range of tooldiametersFor optimum resharpeningof your really small single-lip drills(1.0 - 3.5 mm) the TBT universalgrinding fixture can also be fittedwith a grinder holder with integrated lighting and 20x measuringmicroscope.TBT universal grinding machineA fully operable device for yourspecific requirements - thegrinding spindle unit and our triedand-tested TBT universal chuckingfixture are mounted together on asolid board, thus allowing optimumregrinding quality for excellentdrilling results. Matching base andextraction equipment are alsoavailable.27
Cutting dataStandard values for deep hole drilling in various materialsfor solid carbide single-lip drillsMaterialgroupsSpring steels; hardened steels; high-temperature steels; caststeel/chilled cast iron;special alloys: e.g.Nimonic; Inconel etc.;titanium; titaniumalloysStainlessacid-proof steel caststeel,austenitic18-25% Cr, Ni 8%Stainless steel cast steel,martensitic/ferritic 13-25% Cr(sulphurated)“easily machinable”Alloyedtempered steelscase-hardened steelsnitriding steelstool steels( 900 N/mm²)25 – 6030 – 6040 – 7060 – 80Cuttingspeed m/minDrill Ø mm28Feed mm/rev.ToFromFromToFromToFromTo0.7 – 120.8 – 150.9 – 191.0 – 231.1 – 291.2 – 351.3 – 411.4 – 471.5 – 511.6 – 661.8 – 752.0 – 952.5 – 103.0 – 403.5 – 604.0 – 904.5 – 105.0 – 506.0 – 308.0 – 80The cutting speed and feed settings depend on the following: tool length, cooling lubricant, material, stability ofthe machine parts and workpiece clamping. All the entries are standard values.
Cutting dataStandard values for deep hole drilling in various materialsfor solid carbide single-lip drillsMaterialgroupsCuttingspeed m/minCast irongrey cast iron( 300 N/mm²)ductile cast iron( 400 N/mm²)general steelcasting60 – 90Cast iron; greycast iron( 300 N/mm²)ductile cast iron( 400 N/mm²);malleable castiron; whiteheartmalleable iron;blackheart castiron“easilymachinable”70 – 100Structural steel;high-carbonand low-alloymachining steel;tempered steel;case-hardenedsteel; tool steel( 900 N/mm²)“easilymachinable”Copper, bronze;brass; plasticsAluminium castaluminium, Sicontent 5% easily machinableAluminium castaluminium, Sicontent 5% noth
Drill bush 20 Drill bush holder 21 Sealing disc 22 Whip guide bush 23 Sealing case 24 Other accessories 25 Clamping cone 25 Tool holder 25 . Single-lip drills are one-edged tools which are guided through a jig bush as they bore. Not only can these drills be used on deep hole drill machines, but also on machining centres or automatic lathes .
Fundamentals of drilling operations; the drilling rig equipment and their functions; drilling terminologies; drilling processes; planning of drilling operations; logistics, role and responsibilities of service companies including drilling contractor; the functions of drilling fluid, casing, cementing and components of a drill string; the different
Casing drilling, otherwise known as drilling with casing (DwC) or casing while drilling (CwD) is an alternative drilling technique to the conventional drilling method. Casing drilling involves the simultaneous drilling and casing of well with a (active-standard) casing string. It is mandatory to note that casing is the same grade and weight as in
Drill bush 20 Drill bush holder 21 Sealing disc 22 Whip guide bush 23 Sealing case 24 Other accessories 5 Clamping cone 25 Tool holder 25 . Single-lip drills are one-edged tools which are guided through a jig bush as they bore. Not only can these drills be used on deep hole drill machines, but also on machining centres or automatic lathes .
these tools, unlike wire line, give us information while drilling, in other words, while drilling the well, we are receiving information regarding the drilling of the hole and the formations traversed by the same. With the MWD, modelling while drilling, we can have speed information; direction, angle, vibration, torque, etc. regarding the hole .
Drilling Productivity Report (DPR), September 2020. The drilling process is increasingly managed usingmass production operations , such as pad drilling, cube drilling, and multilateral drilling, to achieve higher cost efficiency in both the physical and contractual management of heavy-duty and fully automated drilling rigs.
Lifting Capacity of Drilling Fluids, Pressure losses in the Circulating System and ECD Functions of the Drilling Fluids, Impact of Hydraulic on the Drilling Optimization Parameters affecting on the Drilling Penetrations Drilling Fluid Properties, Functions of Drilling Fluid Mud Properties and Problems related to Mud Properties
Geothermal Well Drilling, the differences between Geothermal Drilling and Oil and Gas Drilling. The challenges of drilling and producing hot, volcanic resources from fractured formations. By Louis E. Capuano, Jr. November 21, 2014
“Accounting is the art of recording, classifying and summarizing in a significant manner and in terms of money, transactions and events which are, in part at least, of a financial character, and interpreting the result thereof”. Definition by the American Accounting Association (Year 1966): “The process of identifying, measuring and communicating economic information to permit informed .
