Locate, Identify, and Quantify Casing Damage and Corrosion
Measure internal and external casing corrosion
The UCI ultrasonic casing imager gives you the answers for locating, identifying, and quantifying casing damage or corrosion. The rotating transducer makes 180 highly focused measurements during each revolution of the sensor.
Quantify anomaly depth
The UCI tool measures pits and other anomalies to diameters as small as 0.3 in on the inside or outside surface. You get absolute measurements, so corrosion and other casing anomalies can be identified and measured without reference to a base log.
See excellent resolution
This is the result of the very high transducer frequency of 2 MHz. The signal is attenuated by the borehole fluid; for best results use brine, oil, or very light muds.
The UCI ultrasonic casing imager is an evolution of the proven USI ultrasonic imager. The UCI design is specifically engineered for high-azimuthal-resolution images and detailed examination of both the inner and outer surfaces of casing ranging from 4 1/2 to 13 3/8 in [11.43 to 33.97 cm], resulting in improved echo detection.
Full azimuthal coverage with the 2-MHz focused ultrasonic transducer is used to analyze the reflections. Signal arrivals are analyzed to provide the casing thickness and surface condition images, and even small defects on both internal and external casing surfaces are quantified. An improved centralization system ensures proper centralization even in horizontal wells, and eccentering effects are reduced through wellsite signal correction.
Benefits
- Measure internal and external casing corrosion
- Get accurate and detailed internal radius measurement
- Get a qualitative visual image of the casing condition
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