X-Y Caliper Tool – Digital with Temperature
Measures borehole size and provides two independent caliper curves simultaneously
Applications
- Internal-wellbore size measurement
- Casing and tubing evaluation
- Openhole-size measurement
- Defect detection such as scale build up, corrosion, or deformation
- Identification of completion items
Features and Benefits
- Accurate measurement of two independent wellbore diameters
- Applicable in openhole or cased-hole environments
Tool Description
The Weatherford X-Y caliper tool measures the size of the borehole and provides two independent caliper curves simultaneously. Two sets of opposing arms, arranged in an X-Y configuration, measure borehole irregularities such as oval shapes, large washouts, or extreme restrictions more accurately than conventional 2- or 3-arm caliper tools. The tool may be used in either openhole or cased-hole logging.
Specifications
Ratings and Dimensions
Max. temperature | 350°F (177°C) |
Maximum pressure | 18,500 psi (127.5 MPa) |
Outside diameter | 3.5 in. (88.9 mm) |
Length | 70.08 in. (1,780.03 mm) |
Weight | 95 lb (43 kg) |
Casing/tubing OD | Min: 4.5 in. (115 mm) |
Tensile strength | Tension: 12,500 lb |
Measure points | X: 16.1 in. (408.94 mm) |
Borehole Conditions
Tool positioning | Centralized |
Logging speed | Recommended: 30 ft (9.1 m)/min |
Hardware Characteristics
Sensor type | Linear motion resistive potentiometer |
Transmission type | Digital telemetry |
Data rate | 20 frames per second |
Combinability | GR, CCL, additional telemetry tools |
Connections | Top: GO pin box |
Electrical
Voltage/current | 120 V DC at 40 mA |
Calibration
Primary and wellsite | Calibration fixture 035-FH099-0070 |
Measurements
Principle | Mechanical actuation of linear motion potentiometers |
Range | 4.5 to 30 in. (115 to 762 mm) |
Vertical resolution | 0.3 in. at 30.0 ft/min |
Accuracy | +/- 0.25 in. (+/- 6.4 mm) |
Primary curves | Borehole size in X and Y axis |
Secondary curves | Head voltage |
Reach out to optimize reservoir performance
Please fill in the form below for more information on our comprehensive and high-resolution technologies. You will hear from one of our wireline representatives shortly.
Thank you for contacting us.
Your request is being directed to the appropriate person in our organization.
We will be in touch soon.