9m Fiber Glass & Aluminum Barrel Coring Tools for Oil Wells - 7 1/8" Core Barrel with 4" Core Size
Specialized coring tools designed for horizontal well applications, featuring radial righting bearings to prevent inner cylinder rotation. This double cylinder single action design ensures straight edge stability with minimal shaft wall scraping and drill friction. Capable of navigating wellbore curvatures up to 48°/100M.
- 9m Inner Tubes with Fiber Glass & Aluminum Barrel Construction
- Core barrel: 6 3/4" x 4", Inner tubes: O.D 4 3/4", I.D 4 1/4"
- Core barrel: 5 1/2" x 3 1/4", Inner tubes: O.D 4", I.D 3 1/2"
- 7 1/8" Core Barrel delivering 4" core size
- Coring tool equipped with TSS technology
Fiberglass inner tubes provide low friction core entry suitable for all formations including soft, fractured, hard, and abrasive applications. Chemically inert for high H2S environments with temperature resistance up to 302°F (150°C). Features one-way pressure relief valves for gas venting during retrieval.
Patented system maximizes core recovery in soft, unconsolidated formations. Unrestricted entry prevents jamming from premature catcher-core contact. Hydraulic activation with clear surface indicators ensures complete core retention throughout retrieval.
| Size (in) | 4 3/4 x 2 9/16 | 5 3/4 x 3 1/2 | 7 1/8 x 4 | 8 5/8 x 5 1/4 | 9 1/2 x 5 1/4 |
|---|---|---|---|---|---|
| Thread Type | ROSCHEN HD | ROSCHEN HD | ROSCHEN HD | ROSCHEN HD | ROSCHEN HD |
| Rec. Hole Size (in) | 5 3/4 - 6 1/2 | 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) | 300,000 | 515,000 | 860,000 | 960,000 | 1,550,000 |
| Make-Up Torque (ft lbs) | 7,500 | 9,500 | 30,000 | 35,000 | 45,000 |
| Max. Torque (ft lbs) | 25,000 | 35,000 | 70,000 | 75,000 | 120,000 |
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