ROSCHEN GROUP
| Supply Ability | 1000 sets |
| Packaging Details | Poly Wooden box |
| Model | CORPRO Core Barrel |
| Name | Oil Core Barrel |
| Service | NOV Core Barrel |
| Oil Service | Schlumberger |
| Core barrel size | Core barrel-6 3/4x4, inner tubes- O.D-4 3/4, I.D-4 1/4 |
| CORE BARREL LENGTH | 30 FT. |
| OUTER TUBE | 6 3/4" X 5 3/8" |
| TOP CONNECTION | 4" API IF |
| RECOMMENDED MAKE UP TORQUE | > 9500 ft.lbs. |
| INNER BARREL (REPLACEABLE) | STANDARD STEEL INNER BARREL |
| location | corpro houston |
| Coring | corpro coring |
| Series | corpro als |
| Brand Name | ROSCHEN |
| Model Number | 6 3/4 inch |
| Certification | ISO |
| Place of Origin | CHINA |
View Detail Information
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Product Specification
| Supply Ability | 1000 sets | Packaging Details | Poly Wooden box |
| Model | CORPRO Core Barrel | Name | Oil Core Barrel |
| Service | NOV Core Barrel | Oil Service | Schlumberger |
| Core barrel size | Core barrel-6 3/4x4, inner tubes- O.D-4 3/4, I.D-4 1/4 | CORE BARREL LENGTH | 30 FT. |
| OUTER TUBE | 6 3/4" X 5 3/8" | TOP CONNECTION | 4" API IF |
| RECOMMENDED MAKE UP TORQUE | > 9500 ft.lbs. | INNER BARREL (REPLACEABLE) | STANDARD STEEL INNER BARREL |
| location | corpro houston | Coring | corpro coring |
| Series | corpro als | Brand Name | ROSCHEN |
| Model Number | 6 3/4 inch | Certification | ISO |
| Place of Origin | CHINA | ||
| High Light | core drilling tools ，oilfield fishing tools | ||
Corpro Core Barrels Triple Core Barrel, Triefus Triple Tube Core Barrel for Coring tool with TSS
Triple Core Barrel CORPRO Triefus Triple Tube Core Barrel for Coring tool with TSS
Advanced Core Barrel Technology
ROSCHEN Coring companies have been operating with predominantly the same technology for over 50 years. ROSCHEN identified this and seized the opportunity to develop a pioneering new coring system. This new innovative coring system, utilizing improved materials technology, has set and maintained benchmark standards for coring in the petroleum industry.
The ROSCHEN coring concept has been specifically designed to enable the retrieval of longer, higher quality cores. The new system features four primary benefits:
• faster rates of penetration
• less incidence of core jamming
• increased reliability
• improved core quality
ROSCHEN believes that correct stabilization is one of the most important factors governing a successful coring operation. Without the outer barrel properly stabilized, bending within the well bore is imminent.
ROSCHEN researched the positioning of its stabilizers and determined that optimal stabilization could be achieved using core barrels in 20 ft stabilized sections. For high angle and horizontal holes, a stabilizer can be placed midway in the lower section, giving three stabilizers within the bottom 20 ft.
Core Barrel Range
| Size | (in) | 43⁄4 x 29⁄16 | 53⁄4 x 31⁄2 | 71⁄8 x 4 | 85⁄8 x 51⁄4 | 91⁄2 x 51⁄4 |
| Thread Type | ROSCHEN HD | ROSCHEN HD | ROSCHEN HD | ROSCHEN HD | ROSCHEN HD | |
| Rec. Hole Size | (in) | 5 3⁄4 - 61⁄2 | 6 1⁄2 - 8 | 8 - 9 1⁄4 | 9 1⁄4 - 11 | 11 - 12 1⁄4 |
| Core Size | (in) | 2 9⁄16 | 3 1⁄2 | 4 | 5 1⁄4 | 5 1⁄4 |
| Top Connection | 3 1⁄2 IF | 4 1⁄2 FH | 4 1⁄2 IF | 6 5⁄8 REG | 6 5⁄8 REG | |
| Outer Tube | (in) | 4 3⁄4 x 3 3⁄4 | 5 3⁄4 x 4 5⁄8 | 7 1⁄8 x 5 5⁄8 | 8 5⁄8 x 7 | 9 1⁄2 x 7 |
| Unit Length | (in) | 20 | 20 | 20 | 20 | 20 |
| Pulling Capacity | (lbs) | 300000 | 515000 | 860000 | 960000 | 1550000 |
| Make-Up Torque | (ft lbs) | 7500 | 9500 | 30000 | 35000 | 45000 |
| Max. Torque | (ft lbs) | 25000 | 35000 | 70000 | 75000 | 120000 |
Benefits:
• Transfer of power through core-barrel to core-head without losses due to buckling
• Higher torsion and tensile strengths than any alternative systems in the market place
• Stabilizers positioned at 20ft intervals improve hole gauge and concentricity
• ROSCHEN Tandem and Extended Tandem Assemblies promote increased success in high angled wells
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For more information, please contact:
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
Skype: ROSCHEN.TOOL , ROSCHEN_GROUP
WeChat: +86-137 6419 5009 ; +86-135 8585 5390
WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390
Email: roschen@roschen.com ; roschen@roschen.net
Website: http://www.roschen.com ; http://www.roschen.net
http://www.roschen.cn ; http://www.roschendrill.com
http://www.roschenmining.com ; http://www.roschendrilling.com
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Seller
Year Established:
1921
Total Annual:
5000-2000000
Employee Number:
100~500
Ecer Certification：
Verified Supplier
ROSCHEN GROUP ROSCHEN Group has the world class advanced equipment like 12000 tons forging, metal processing plant, heat treatment workshop, numerical control plant, Advanced five-axis machining center, etc. professional technical and skilled team to ensure mining, mine... ROSCHEN GROUP ROSCHEN Group has the world class advanced equipment like 12000 tons forging, metal processing plant, heat treatment workshop, numerical control plant, Advanced five-axis machining center, etc. professional technical and skilled team to ensure mining, mine...
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