Multi-Finger Imaging Tool

Products:

The multi-finger caliper family, which includes 24-finger, 32-finger, 40-finger and 60-finger versions, is used to provide accurate tubing/casing caliper measurements. Data from each finger is monitored independently. The high quality data allows for 3-dimentional imaging and the calculation of rates of corrosion or scale deposition. When measuring, the fingers are motored open. The spring gets loaded. Each finger tip is pushed against the inner surface of the pipe for measuring even very small variations in diameter. The tool also includes an inclinometer to indicate well deviation, and a relative bearing sensor to indicate rotation of the tool. The Non-Contacting Displacement Transducers (Patented Technology) are used to make high coverage and accurate measurement in limited tool diameter.

Operation Principles

Measuring fingers and centralizing fingers are opened and closed by a motor, and the caliper works centralized. 

Supported by springs, measuring fingers move along the inner casing wall, and changing with it. 

Displacement of each finger is reflected to its sensor directly and all the displacement signals will be processed, 

coded, and transferred to surface system where the image of the casing can be obtained.

Specification

Features

Compatible with Warrior surface system. Able to combine with electro-magnetic defectoscope tool, well temperature tool and CCL & GR to work simultaneously.

3D image enables easy visual evaluation of damage status of casing.

3D sectioned tool structure design enables simple assembly and disassembly which ensures effective trouble shooting. Easy maintenance for both major components and consumable parts.

Carbide Alloy measuring tips of fingers are anti-abrasive with long service life. The fingers can beeasily replaced by one Field Engineer within few minutes.

With design of strong finger elasticity and sand prevention, successful performance can also

be achieved in heavy mud wells with high accuracy.