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| A novel approach to identifying the ultrasonic echoes for inspecting well cementing quality | |
| 摘 要： | I.IlltroductionUltrasoulceyaluatingtechniqueshavebeenaPpliedtoinspectoil-wellcemelltingqualityformanyyears-Aconventionalapproachisbasedonwaveformfeaturesoftheultrasonicechoesfromtheexploredstructuresinwell.Bytheapproach,theechoesarewindowed,andthebondingqualitiesbetweenthecementandboththesteelpipeandtheformationareevaluatedaccordingtowavenergiesinthewindows.GenerallywecantheillterfacebetweenthepipeandthecementSurfaceOne,theinterfacebetweenthecementandtheformationSurfaceTwol1],Thisapproachis… |
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