9-1/2" x 5-1/4" Oil Core Barrel with Safety Joint and LDA System for 30ft Length Operations
Price:
Negotiation
MOQ:
1 sets
Delivery Time:
Negotiable
Brand:
ROSCHEN
Product Description
Product Overview
The 9-1/2" x 5-1/4" Oil Core Barrel with Safety Joint and Inner Barrel Adjustment Facilities is engineered for demanding drilling operations. Available in HT and HD series, these heavy-duty core barrels deliver exceptional performance in high-torque, long-footage coring applications, particularly in highly deviated holes.
HT & HD Series Core Barrels
Designed for maximum durability and reliability in challenging drilling environments. HT series cuts 2-1/8" diameter cores, while HD series handles 5-1/8" diameter cores. Constructed from high-strength structural alloy steel tubing with safety tool joint upsets for enhanced operational safety.
Key Features & Benefits
- Optional safety joint assembly for easy core retrieval and durable threaded connections
- Swivel assembly enables maximum free rotation for optimal penetration rates
- Mud-lubricated thrust bearing with tempered ball bearings for high-temperature applications
- Pressure relief plug ensures clean inner tube and hole before coring begins
- Long Distance Adjustment (LDA) system compensates for thermal expansion
- Inner and outer tube stabilizers reduce core barrel wear and prevent differential sticking
- Optional core jam indicator provides immediate detection of jamming conditions
- Standard spring core catcher with tungsten carbide grit for secure core retention
- HD barrel compatible with motor coring applications in hole inclinations exceeding 90 degrees
Technical Specifications
| Parameter | 4-3/4" x 2-5/8" | 6-3/4" x 4" | 8" x 5-1/4" |
|---|---|---|---|
| Core Barrel Length | Multiples of 30ft | Multiples of 30ft | Multiples of 30ft |
| Outer Tube | 4-3/4" x 3-3/4" | 6-3/4" x 5-3/8" | 8" x 6-5/8" |
| Inner Tube | 3-3/8" x 2-7/8" | 4-3/4" x 4-1/4" | 6-1/4" x 5-1/2" |
| Top Connection | 3-1/2" IF | 4-1/2" IF | 6-5/8" REG |
| Core Size O.D. | 2-5/8" | 4" | 5-1/4" |
| Weight (Gross) lbs | 1900 | 4350 | 5800 |
| Recommended Max Pull | 292,000 | 571,000 | 663,000 |
| Operating Parameters WOB | 4,500/16,700 lbs | 12,500/27,500 lbs | 20,000/40,000 lbs |
| Fluid Capacity | 100/210 GPM | 200/450 GPM | 390/450 GPM |
Fiber Inner Tube Specifications
| Volumic Mass (1000kg/m³) | Coefficient of Thermal Expansion (-10⁸/℃) | Heat Conduction Coefficient (W/m·℃) | Tensile Strength (MPa) | Working Temperature (℃) |
|---|---|---|---|---|
| 1.9 | 7 | 0.3 | 420 | 150 |
Ordering Information
When ordering, please specify: Name and part number of assembly, size of core, O.D. and I.D. of outer barrel, O.D. and I.D. of inner barrel, types and size of stabilizers, and top connection requirements.
Contact Information
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: www.roschen.com; www.roschen.net; www.roschen.cn; www.roschendrill.com; www.roschenmining.com; www.roschendrilling.com
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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