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Odex Eccentric Overburden Casing Drilling Systems Drilling Bits1
Drilling ToolsDrilling BitsDrill Bits
Xiamen Bestlink Factory Co., Ltd.
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Product Description ODEX ECCENTRIC CASING SYSTEMIn the projects of drilling,drillers often meet with problems due to the loose land formation.These may cause troubles such as difficulty in drilling down,collapse of holes,damage of drilling tools,etc.To solve the problems,the best way is to use (ODEX)Overburden Drilling System which can prevent holes and drilling tools from damage,and support the holes by casing tubes.General Introduction HOD90 HOD115 HOD140 Overburden casing system,ODEX system, Casing drilling system,eccentric casing system1.drill in overburden unstable rock 2.one step to drill and follow casing 3.flexible to open or close 4.effecient below 300mm Design Principles:Make the casing follow easy and the equipment and operation simple Outstanding Advantages Simple structure,simple operation,reliable quality,retrievable drilling tools,long service life. Raw Material Steel:first class special alloy steel with high strength, heat resistance and wearableCarbideThe best tungsten carbides from China are commonly applied.Tungsten carbide from European is also available.Eccentric Reamer System Step-by-step 1. When drilling starts, the reamer swings out and reams the pilot-hole wide enough for the casing tube to slide down behind the drill bit assembly. 2. When the required depth is reached, rotation is reversed carefully, whereupon the reamer swings in , allowing the drill bit assembly to be pulled up through the casing. 3. Casing tubes that are to be left in the drill hole should be sealed at the bottom of the hole by means of cement grout or some other sealing agent. 4. Drilling continues to the desired depth in the bedrock using a conventional drill string. Type1.Casing tube2.Drill pipe3.Guide sleeve4.DTH hammer5.Casing shoe6.Guide device7.Reamer 8.Pilot bitHOD90Maximum OD:115mm Minimum ID:102mmconnection thread:API 2 3/8"REG OD:76mm wrech flats:65mmEffective length: 174mmHD35,COP32, IR3.5,QL30L3=90mm,L4=55mm, D3=101mm,D4=93mmL1=35mm,L2=138mm, D1=92mm,D4=100mmD5=91mm,L5=70mm, reaming diameter=123mm, reamer has4*Φ12buttonsD6=90mm,L6=59mm, gauge button=8*Φ12mm, face button:6*Φ10mmHOD115Maximum OD:142mm Minimum ID:128mmconnection thread:API 2 3/8"REG OD:76mm wrech flats:65mmEffective length: 174mmHD45,COP44, SD4,DHD340A,QL40,HM4L3=76mm,L4=55mm, D3=127.5mm,D4=117mmL1=48mm,L2=136mm, D1=115mm,D4=126mmD5=114mm,L5=89mm, reaming diameter=152mm, reamer has5*Φ14buttonsD6=114mm,L6=67mm, gauge button=8*Φ14mm, face button:6*Φ13mmHOD140Maximum OD:171mm Minimum ID:155.6mmconnection thread:API 2 3/8"REG OD:89mm wrech flats:65mmEffective length: 205mmHD55,COP54, SD5,DHD350R,QL50L3=90mm,L4=63mm, D3=155.3mm,D4=143mmL1=55mm,L2=160mm, D1=141mm,D4=154mmD5=138mm,L5=69.5mm, reaming diameter=185mm, reamer has7*Φ14buttonsD6=138mm,L6=66.5mm, gauge button=8*Φ16mm, face button:8*Φ14mmHOD165Maximum OD:195mm Minimum ID:182.6mmconnection thread:API 3 1/2"REG OD:114mm wrech flats:95mmEffective length: 225mmHD65,COP64, SD6,DHD360, QL60L3=95mm,L4=55mm, D3=181.5mm,D4=166mmL1=61.5mm,L2=181.5mm, D1=165mm,D4=178mmD5=164mm,L5=79.5mm, reaming diameter=211mm, reamer has7*Φ14buttonsD6=165mm,L6=82.5mm, gauge button=8*Φ16mm, face button:8*Φ16mmHOD190Maximum OD:222mm Minimum ID:205mmconnection thread:API 3 1/2"REG OD:114mm wrech flats:95mmEffective length: 285mmHD65,COP64, SD6,DHD360, QL60L3=110mm,L4=70mm, D3=204.5mm,D4=193mmL1=62.5mm,L2=184.5mm,D1=191mm,D4=203mmD5=185.5mm,L5=90.2mm, reaming diameter=237mm, reamer has7*Φ16buttonsD6=190mm,L6=82mm, gauge button=9*Φ18mm, face button:9*Φ16mmHOD240Maximum OD:273mm Minimum ID:260.4mmconnection thread:API 3 1/2"REG OD:114mm wrech flats:95mmEffective length: 343mmHD85,COP84, SD8,DHD380, QL80L3=110mm,L4=65mm, D3=259mm,D4=241mmL1=70mm,L2=190mm, D1=240mm,D4=256mmD5=238mm,L5=100mm, reaming diameter=308mm, reamer has14*Φ16buttonsD6=240mm,L6=89.5mm, gauge button=12*Φ16mm, face button:18*Φ16mmHOD280Maximum OD:324mm Minimum ID:305mmconnection thread:API 4 1/2"REG OD:114mm wrech flats:95mmEffective length: 305mmSD10,NUMA100L3=125mm,L4=75mm, D3=304mm,D4=281mmL1=97mm,L2=254mm, D1
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