In-Line Tool Taxis
In-line Tool Taxi for ORA — TTB-S52
Titanium in-line taxi that makes up directly to ORA formation-testing tools — slim holes 5-7/8” to 6-3/4”, no adapters.
Description
The TTB-S52 is a Tool Taxi specifically designed for ORA. It makes up in-line with ORA logging tools, without the need for adapters.
TTB-S52 is designed to reduce differential sticking and enable gravity descent in high angle wells.
When run in combination with TTB IL6O, it will orient the ORA probe to the high side of the wellbore.
The TTB S-52 is suitable for use in small holes (5-7/8 to 6-3/4in)
Applications
- Reduce risk of tool differential sticking
- Enable gravity descent in high angle wells.
- Pressure Test and Sample from high side of wellbore.
- Stick-slip and cable tension reduction

Specifications
| Model | TTB-S52 |
|---|---|
| Weight | 64 lbf |
| Length | 19 in |
| Volume | 0.16 cuft |
| Min. Hole Size | 5 -⅞ in |
| Max. Hole size | 6 -¾ in |
| Drag Coefficient, dynamic | 2% |
| Drag Coefficient, Static | 4% |
| Temperature rating | 350°F |
| Pressure rating | 20,000 psi |
| Static load rating | 1,000 lbf |
| Taxi OD | 5 -¼ in |
| Wheel diameter | 4 in |
| Standoff in 6” well-bore1 | 0.3 in |
| Connection | In-Line with ORA Modules |
- 1For 4.5” OD tool housing.
| Body | Titanium Grade 5 |
|---|---|
| Bearings1 | Custom ball bearing |
| Lubrication | Active Diaphragm, Viton < 480°F |
| Grease | Lubriplate 930AA |
| Fastening | 304 Stainless Steel Cap |
| SWL for fishing | 30,000 lbf |
- 1Maximum load per device is 1,000lbf.
Charts & Diagrams

Other models in this family
All Tool Taxis →| Model | Role | Bearing | Hole size | Bore | Temp | Weight |
|---|---|---|---|---|---|---|
| TTA-505, TTB-505 Orienting Taxis TTA-505 & TTB-505 | Orient | Type A (carbide) / Type B (ball) | 8″ – 17-1/2″ | 3-5/8″ | 350°F | 26 lbs |
| TTA-515, TTB-515 Conveyance Taxis TTA-515 & TTB-515 | Convey | Type A (carbide) / Type B (ball) | 8″ – 24″ | 3-5/8″ | 350°F | 26 lbs |
| TTB-715 Conveyance Taxi TTB-715 | Convey | Type B (ball) | 8-1/2″ – 24″ | 3-7/8″ | 350°F | 28 lbs |
| TTB-X-515 Centering Taxi TTB-X-515 | Centre | Type B (ball) | 8-1/2″ – 24″ | 3-5/8″ | 350°F | 28 lbs |
| TTB-S75, TTB-S75H, TTB-S75U, TTB-S85 Formation Tester Taxis TTB-S75 & TTB-S75H | Formation testing | Type B (ball) | 8-1/4″ – 14-3/4″ | 5″ | 350°F | 23 lbs |
| TTC-IL6O, TTB-IL6O In-line Orienting Tool Taxi TTB/TTC-IL6O | In-line orient | Type B (ball) | 5-7/8″ – 8-1/2″ | — | 350°F | 32.8 lbs |
| TTB-IL6C In-line Conveyance Tool Taxi TTB-IL6C | In-line convey | Type B (ball) | 5-7/8″ – 8-1/2″ | — | 350°F | 32.8 lbs |
| TTB-ILHO In-line Orienting Tool Taxi — TTB-ILHO (DITS / LOGIQ) | In-line orient | Type B (ball) | 5-7/8″ – 8-1/2″ | — | 350°F | 47.4 lbs |
| TTB-ILHC, TTB-IQC In-line Conveyance Tool Taxi — TTB-ILHC (DITS / LOGIQ) | In-line convey | Type B (ball) | 5-7/8″ – 8-1/2″ | — | 350°F | 47.4 lbs |
| TTB-J75 Jar Wheels — TTB-J75 (Thor Jar Taxi) | Jar wheels (Thor) | Type B (ball) | 8-1/4″ – 14-3/4″ | 4-1/8″ | 400°F | 33 lbs |
| W180 W180 — 180 lbf Weight Bar | Weight bar | — | 5″ | — | 350°F | 186 lbs |
