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METHOD AND APPARATUS FOR PHASED ARRAY ACOUSTIC WELL LOGGING
METHOD AND APPARATUS FOR PHASED ARRAY ACOUSTIC WELL LOGGING
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机译:相控阵声波测井的方法和装置
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摘要
A downhole acoustic logging tool uses a phased-array of transmitters and/or receivers to improve the signal level of compressional waves generated by the transmitters and propagating in the formation. The tool comprises a processor which is configured to: (A) activate the plurality of segments sequentially using a time delay which accentuates an axially propagating compressional wave in the formation, (B) determine from the signal a compressional wave velocity of the formation; and (C) record the determined compressional wave velocity on a suitable medium.
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