The WOS Multi-Finger Caliper provides reliable, accurate, and direct measurements of the internal casing and tubing diameters. Used for both drilling and production purposes, applications include evaluation of erosion, wear, buckling, bending, pits, holes, corrosion, and other defects with high accuracy.
The measuring fingers move radially along the inner tubing or casing wall to detect any change in diameter. This produces a tubular geometry high resolution record which can be presented and viewed as a cross-section, conventional log, or 3-D enhanced color image.
The Multi-Finger Caliper may be also used to measure buildup of paraffin, scale or other mineral deposits in the wellbore. Auxiliary measurements include relative bearing information and an integral wellbore temperature probe along with deviation. A range of instrument diameters with different finger arrays are available to provide optimized measurements in tubulars ranging from 2-3/8” to 16” diameter.