7 1/8" Core Barrel for Oil Drilling - 4" Core Sample Size, 860,000 lbs Pulling Capacity, 30,000 ft-lbs Torque
Price:
Negotiate
MOQ:
1 sets
Delivery Time:
Negotiable
Brand:
ROSCHEN
Product Description
Product Overview
The 7 1/8" Core Barrel from Corpro is a professional coring tool designed for oil drilling operations, capable of extracting 4" diameter core samples from underground formations.
Core Barrel Functionality
Coring tools are specialized drilling instruments used to extract rock core samples from underground formations. These tools are engineered to maximize rock recovery rates and sample quality through various configurations including single tube, double tube, and triple tube designs.
Key Components
- Coring Bit: Drills and extracts the core sample
- Outer Core Tube: Transmits boring pressure and torque
- Inner Core Tube: Stores and protects the extracted core
- Core Pawl: Cuts off, supports, and removes the core
- Additional Components: Hanging bearings, sub-water head, back pressure Versaili, and centralizers
Technical Specifications
| Size (in) | Thread Type | Rec. Hole Size (in) | Core Size (in) | Top Connection | Outer Tube (in) | Unit Length (in) | Pulling Capacity (lbs) | Make-Up Torque (ft lbs) | Max. Torque (ft lbs) |
|---|---|---|---|---|---|---|---|---|---|
| 4 3⁄4 x 2 9⁄16 | ROSCHEN HD | 5 3⁄4 - 6 1⁄2 | 2 9⁄16 | 3 1⁄2 IF | 4 3⁄4 x 3 3⁄4 | 20 | 300,000 | 7,500 | 25,000 |
| 5 3⁄4 x 3 1⁄2 | ROSCHEN HD | 6 1⁄2 - 8 | 3 1⁄2 | 4 1⁄2 FH | 5 3⁄4 x 4 5⁄8 | 20 | 515,000 | 9,500 | 35,000 |
| 7 1⁄8 x 4 | ROSCHEN HD | 8 - 9 1⁄4 | 4 | 4 1⁄2 IF | 7 1⁄8 x 5 5⁄8 | 20 | 860,000 | 30,000 | 70,000 |
| 8 5⁄8 x 5 1⁄4 | ROSCHEN HD | 9 1⁄4 - 11 | 5 1⁄4 | 6 5⁄8 REG | 8 5⁄8 x 7 | 20 | 960,000 | 35,000 | 75,000 |
| 9 1⁄2 x 5 1⁄4 | ROSCHEN HD | 11 - 12 1⁄4 | 5 1⁄4 | 6 5⁄8 REG | 9 1⁄2 x 7 | 20 | 1,550,000 | 45,000 | 120,000 |
Performance Advantages
- Efficient power transfer from core-barrel to core-head without buckling losses
- Superior torsion and tensile strength compared to alternative systems
- Stabilizers positioned at 20ft intervals improve hole gauge and concentricity
- ROSCHEN Tandem and Extended Tandem Assemblies enhance success rates in high-angle wells
Contact Information
Manufacturer: ROSCHEN Group
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
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
ROSCHEN GROUP
Location
65 EAST XINHUAN ROAD, SHANGHAI, CHINA
Contact Person
Bill, George, Michael