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method for cement evaluation of a medium located between a wall of a formation and a casing in a well, and method for cement evaluation
method for cement evaluation of a medium located between a wall of a formation and a casing in a well, and method for cement evaluation
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机译:井中地层壁与套管之间的介质的水泥评价方法及水泥评价方法
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摘要
Systems and methods for cement evaluation by determining a shear velocity of a shear wave (26) propagating within a medium (20) located between a formation (12) and a casing (13) in a borehole (11) are presented. The method can include positioning an ultrasonic transducer array (21) in the borehole inside the casing. The method can also include in a pushing mode, generating a shear wave in the medium with the ultrasonic transducer array inside the casing. The method can also include in an interrogation mode, measuring a shear velocity of the shear wave in the medium with the ultrasonic transducer array. The shear velocity may be used to determine whether the medium is solid or liquid.
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