|Place of Origin:||China|
|Minimum Order Quantity:||negociated one|
|Packaging Details:||wooden box or plastic box|
|Delivery Time:||10-15 days|
|Payment Terms:||T/T, L/C, Western Union|
|Supply Ability:||100000 Piece/Pieces per Month|
|Model:||Eccentric Casing Drilling System||Type:||Drilling Tool Parts|
|Machine Type:||Drilling Tool, Drilling Equipment||Processing Type:||Forging|
|Use:||Well Drilling||Color:||As Customers' Requirements|
down the hole drilling tools,
downhole drilling tools
Professional DTH Drilling Tools Eccentric Casing Overburden Drilling System
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.
This product is made of alloy of high quality and apply for advanced high-frequency welding technology and maturity of heat treatment process, greatly improving the intensity, wear resistance and impact toughness of cutter head, increasingly prolonging the working life, enhancing the drilling efficiency.
It is recommended to drill in rock formation where contains some ovals and fractures.
|Casing tube||Drill pipe||Guide sleeve||DTH hammer||Casing shoe||Guide device||7.Reamer||8.Pilot bit|
|Maximum OD:115mm Minimum ID:102mm||connection thread:API 2 3/8"REG OD:76mm wrech flats:65mm||Effective length: 174mm||HD35,COP32, IR3.5,QL30||L3=90mm,L4=55mm, D3=101mm,D4=93mm||
|D5=91mm,L5=70mm, reaming diameter=123mm, reamer has4*Φ12buttons||D6=90mm,L6=59mm, gauge button=8*Φ12mm, face button:6*Φ10mm|
|Maximum OD:142mm Minimum ID:128mm||connection thread:API 2 3/8"REG OD:76mm wrech flats:65mm||Effective length: 174mm||HD45,COP44, SD4,DHD340A,QL40,HM4||L3=76mm,L4=55mm, D3=127.5mm,D4=117mm||
|D5=114mm,L5=89mm, reaming diameter=152mm, reamer has5*Φ14buttons||D6=114mm,L6=67mm, gauge button=8*Φ14mm, face button:6*Φ13mm|
|Maximum OD:171mm Minimum ID:155.6mm||connection thread:API 2 3/8"REG OD:89mm wrech flats:65mm||Effective length: 205mm||HD55,COP54, SD5,DHD350R,QL50||L3=90mm,L4=63mm, D3=155.3mm,D4=143mm||
|D5=138mm,L5=69.5mm, reaming diameter=185mm, reamer has7*Φ14buttons||D6=138mm,L6=66.5mm, gauge button=8*Φ16mm, face button:8*Φ14mm|
|Maximum OD:195mm Minimum ID:182.6mm||connection thread:API 3 1/2"REG OD:114mm wrech flats:95mm||Effective length: 225mm||HD65,COP64, SD6,DHD360, QL60||L3=95mm,L4=55mm, D3=181.5mm,D4=166mm||L1=61.5mm,L2=181.5mm, D1=165mm,D4=178mm||D5=164mm,L5=79.5mm, reaming diameter=211mm, reamer has7*Φ14buttons||D6=165mm,L6=82.5mm, gauge button=8*Φ16mm, face button:8*Φ16mm|
|Maximum OD:222mm Minimum ID:205mm||connection thread:API 3 1/2"REG OD:114mm wrech flats:95mm||Effective length: 285mm||HD65,COP64, SD6,DHD360, QL60||L3=110mm,L4=70mm, D3=204.5mm,D4=193mm||
|D5=185.5mm,L5=90.2mm, reaming diameter=237mm, reamer has7*Φ16buttons||D6=190mm,L6=82mm, gauge button=9*Φ18mm, face button:9*Φ16mm|
|Maximum OD:273mm Minimum ID:260.4mm||connection thread:API 3 1/2"REG OD:114mm wrech flats:95mm||Effective length: 343mm||HD85,COP84, SD8,DHD380, QL80||L3=110mm,L4=65mm, D3=259mm,D4=241mm||L1=70mm,L2=190mm, D1=240mm,D4=256mm||D5=238mm,L5=100mm, reaming diameter=308mm, reamer has14*Φ16buttons||D6=240mm,L6=89.5mm, gauge button=12*Φ16mm, face button:18*Φ16mm|
|Maximum OD:324mm Minimum ID:305mm||connection thread:API 4 1/2"REG OD:114mm wrech flats:95mm||Effective length: 305mm||SD10,NUMA100||L3=125mm,L4=75mm, D3=304mm,D4=281mm||L1=97mm,L2=254mm, D1|
MIROC® Rock Drilling Tools are Rock Drilling Tools Brand by KSQ Tecnologies (Beijing) Co. Ltd.
KSQ Technologies (Beijing) Co. Ltd. provides exceptional technical know-how in development, production, and application. The company has adopted advanced manufacturing processes to ensure high quality steels and tungsten carbide inserts for its rock drilling accessories. Its personnel understand clients’ drilling needs, and have the service skills to recommend the right drilling tools for the job. Its experienced product developers can also create custom tools. Furthermore, the company’s development team introduces innovative products each year – tools that are rigorously tested in the field and proven
to perform beyond industry expectations.
MIROC® Rock Drilling and Ground Support Tools include:
Plug Hole Rods
Tapered Drilling Tools
Extension Drilling Tools
Drifting and Tunneling Tools
Shank Adapters (Striking Bars)
Down-the-hole (DTH) Bits
Down-the-hole (DTH) Hammers
Contact Person: Mr. Yingkai Zhang
Tel: +86 18501231988