Tensor Rro MWD is an ultra-high temperature MWD system compatible with Tensor standards, which is mainly used to measure such downhole parameters as well deflection, azimuth, gravity tool surface, magnetic tool surface, gravity sum, magnetic field sum, temperature, gamma (optional), and azimuth gamma (optional).It is suitable for high temperature wells of unconventional oil and gas exploration and development. Tensor Pro system adopts a modular design to accurately measure the well deflection and azimuth, and provide real-time vibration and impact data, which can be transported in an easy and efficient manner, and can be assembled on the drilling site.
Product Features
Strong expandability: combined applications including compensated resistivity, azimuth resistivity, Azimuth gamma annular pressure, near-bit, etc.
185℃
Max. working temperature
20000/25000Psi
Max. working pressure
| Mechanical Specifications | |||||
| Outer diameter of probe tube | 1.875 in. | ||||
| Outer diameter of drill collar | 3.5 in. | 4.75 in. | 6.75 in. | 8.25 in. | 9.5 in. |
| Drill collar buckle type | 2 3/8 in. IF | 3 1/2 in. IF | 4 1/2 in. API IF | 6 5/8 in. API Reg | 7 5/8 in. API Reg |
| Equivalent stiffness of drill collar | 2.96 in. x 2.25 in. | 4.75 in. x 2.81 in. | 6.71 in. x 3.25 in. | 7.93 in. x 4.00 in. | 9.42 in. x 4.00 in. |
| Makeup torque | 3,500lbf-ft | 9,600lbf-ft | 30,000lbf-ft | 54,000lbf-ft | 62,000lbf-ft |
| Working displacement | 75-165usgpm | 100-300usgpm | 150-800usgpm | 400-1200usgpm | 400-1200usgpm |
| Max. overall angle change rate rotation | 50°/100 ft | 15°/100 ft | 10°/100 ft | 8°/100 ft | 4°/100 ft |
| Max. overall angle change rate slip | 100°/100 ft | 30°/100 ft | 21°/100 ft | 14°/100 ft | 7°/100 ft |
| Max. working temperature | 185℃ | ||||
| Max. withstand temperature | 200℃ | ||||
| Max. working pressure | 20,000/25000 psi | ||||
| Max. sediment content | ≤1% | ||||
| Max. plugging material content | 40-50 lb/bbl evenly mixed, any size | ||||
| Directional Sensor Characteristics | |||
| Directional Sensor | Three-axis fluxgate quartz accelerometer | ||
| Directional survey | Range | Resolution (MWD) | Accuracy |
| Well deflection | 0–180° | 0.1° | ± 0.1° |
| Azimuth | 0–360° | 1.0° | ± 0.5° |
| Magnetic tool surface | 0–360° | 1.0° | ± 0.5° |
| Gravity tool surface | 0–360° | 1.0° | ± 0.5° |
| Magnetic field sum | 0–100 μT | 0.01 μT | ± 0.075 μT |
| Dip | -90–90° | 0.1° | ± 0.15° |
| Gravity sum | 0–1.000 g | 0.001 g | ± 0.001 g |
| Temperature sensor | Internal integration | ||
| Temperature measurement range | -20 – 200 °C | 0.1 °C | ±1 °C |
| Gamma sensor characteristics | |
| Storage update rate | 7.2 sampling/ft at 50 ft/hr |
| Real-time update rate | 3.6 sampling/ft at 50 ft/hr |
| Gamma resolution | 1 API |
| Gamma sensitivity | 2.5 counting/API (installed on pressure cylinder) |
| Gamma storage | 4 MB (allocation of directional probe memory) |
| Minimum sampling period | Downhole storage for 10s, mud transmission: 20s for rotating state, 30s for sliding state |
| Data storage | 800+ hours |