3-Arm Caliper


Measures borehole diameter with excellent accuracy, stability, and repeatability


Applications

  • Accurate internal wellbore measurement
  • Casing and tubing evaluation
  • Defect detection such as scale build up, corrosion, or deformation
  • Identification of completion items


Features and Benefits

  • Ultraslim logging tool for maximum accessibility
  • Compatible with slim production logging tools


Tool Description

The Weatherford motorized 3-arm caliper tool measures borehole diameter with excellent accuracy, stability, and repeatability. Can be used for locating packer seats, collapsed tubing or casing, as well as other internal measurements that might be required throughout the life of a wellbore.


Specifications

Ratings and Dimensions

Maximum temperature

350°F (177°C)

Maximum pressure

20,000 psi (137.4 MPa)

Outside diameter

1.38 in. (35.1 mm)

Makeup length

37.5 in. (952 mm)

Weight

10 lb (4.5 kg)


Hardware Characteristics

Combinability

1.38-in. production logging tools (CCL/temp/GR)

Tool positioning

Centralized


Electrical

Voltage

Operating: 75 V DC
Motoring: 30 V

Current

60 mA


Caliper Measurements

Resolution

± 3% of reading (at mid-range extension)

Diameter range

2 to 15 in. (50.8 to 381.0 mm)


Connections

Top

1 3/16 in. 12P type-A Go-Box

Bottom

1-3/16-in. 12-pin type-A Go-Box (with feed through)
1-3/16-in. 12-pin (with no feed through)

3-Arm Caliper

Reach out to optimize reservoir performance

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