Combined Capacitance Flow and Temperature Tool
Combines fluid velocity and fluid identification into a compact tool
Applications
- Fluid velocity measurement
- Fluid type identification
Features and Benefits
- Fully high-speed digital (HD) platform compatible with fast telemetry
- Combinable with ArrayPro for enhanced evaluation
- Available in SRO and memory
- Compatible with all fixed-cage spinners and full-bore spinners
Tool Description
The Weatherford combined capacitance flow electronics and temperature (CFT) tool offers a reduced-length, multiple-sensor solution for production profiling. All standard fixed-cage spinners and full-bore spinners are compatible with the CFT tool.
The capacitance sensor provides an indication of the fluid type surrounding the sensor by measuring the dielectric constant of the fluid between the sensor and tool body. Used in combination with other sensors, the tool provides qualitative fluid identification data.
A dedicated hall-effect array provides 10 pulses per revolution flowmeter output and a fast-response PRT measures wellbore temperature.
Specifications
Ratings and Dimensions
Maximum temperature | 350°F (177°C) |
Maximum pressure | 15,000 psi (103.4 MPa) |
Outside diameter | 1.69 in. (43.3 mm) |
Length | 29.3 in. (744 mm) |
Weight | 12.3 lb (5.6 kg) |
Materials | Corrosion-resistant materials used throughout |
Capacitance Sensor
Range | 0 to 45% holdup (water) |
Resolution | 1% |
Measure points | 10.8 in. (274 mm) |
Temperature Sensor
Range | −40 to 350°F (−40 to 177°C) |
Accuracy | ± 0.9°F (± 0.5°C) |
Resolution | ± 0.006°F (± 0.003°C) |
Linearity | 0.5°F (0.15°C) |
Response time | ~ 0.5 seconds |
Measure points | 0.7 in. (17 mm) |
Hardware Characteristics
Combinability | All HD tools (RADii™, iQ™, PL, RAS®) |
Acquisition mode | Real time (with TCU) |
Electrical
Current | 7 mA at 50 V |
Reach out to optimize reservoir performance
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