| 摘要 |
A device for enabling the detection and measurement of wear deformities in well casings and similar well components is installed on a test and isolation tool in the space normally occupied by one of the tool test seal assemblies and possessing the exact configuration of such assembly. Instead of the resilient test seal element normally employed having elastic memory, a non-resilient material without significant elastic memory is used so that it will retain a deformed shape indicative of the shape and size of a wear deformity in a well component when the device is energized with fluid pressure applied to the test tool.
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