Array Fluid Velocity Resistance Capacitance Tool


Measures array fluid velocity, resistivity, and capacitance


Applications

  • Whole wellbore fluid characterization
  • Deviated wellbore production profiling
  • Complex flow evaluation


Features and Benefits

  • Co-located fluid velocity and holdup measurements
  • Six-sensor packages arranged radially on 6 arms
  • Bi-directional fluid flow evaluation
  • Combinable with all HD services
  • Can operate in SRO or Memory
  • Combinable with Array Gas Holdup for 3-phase flow evaluation


Tool Description

The Weatherford array fluid velocity resistance capacitance tool is a compact 6-arm multi- sensor array production logging tool. Each arm provides three measurements via a fluid velocity sensor, and a co-located fluid resistance and fluid capacitance sensor.

The sensor configuration offers optimal coverage of the wellbore cross section. The tool is run with centralizers and the opening diameter of the arms should be adjusted to avoid contamination from debris on the casing wall, and to minimize risk of damage in open hole or horizontal sections.


Specifications

Rating and dimensions

Maximum temperature

350°F (177°C)

Maximum pressure

15,000 psi (103.4 MPa)

Outer diameter

1.69 in. (43.0 mm)

Length

80.0 in. (2,003.00 mm)

Weight

35.0 lb (15.9 kg)

Measure points:
Fluid Velocity
Fluid Velocity
Resistance and Capacitance
Resistance and Capacitance


Short (x3): 25.4 in. (645.0 mm)
Long (x3): 29.5 in. (749.0 mm)
Short (x3): 23.0 in. (584.0 mm)
Long (x3): 27.0 in. (686.0 mm)

 

Measurements

Adjustment range

Up to 9.0 in (228.6 mm)

Velocity output

+/- 300 rps, <10-500 FPM

Velocity threshold

<10 FPM water

Resistance output

Frequency:
Post Log Processing determines Water Hold Up % (A Quicklook Real-time Hold-up is presented during logging)

Capacitance output

Frequency:
Post Log Processing determines Water Hold Up %

 

Hardware characteristics

Acquisition mode

Real-time (with TCU)

Memory (with MLT)

Combinability

All HD tools (RADii, iQ, PL, RAS, etc.) when connected to TCU

Materials

Corrosion resistant materials used throughout

Tool positioning

Centralized

Deviation

0 - 180° and Tool rotation 0 – 360°

 

Electrical specifications

Current

40 mA at 50 V

105 mA at 19 V

Array Fluid Velocity Resistance Capacitance Tool

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