Measuring and testing – Vibration – By mechanical waves
Patent
1992-03-20
1995-05-09
Williams, Hezron E.
Measuring and testing
Vibration
By mechanical waves
374 53, 73594, G01H 500, G01N 924, G01N 2918
Patent
active
054129907
ABSTRACT:
A method and apparatus for determining the setting time of a cement slurry. An acoustic shear wave signal is generated and introduced at a first location in the slurry. The signal is monitored at a second location for direct transmission of the shear wave signal. The time of first detection is determined at the second location which is taken as the setting time of the slurry.
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Hannant, D. J. and Keating, J., Equipment for Assessing the Development of Structure in Fresh Cement Pastes by the Measurement of Shear Modulus, Pergamon Press, Ltd., 0008-8846/85, pp. 605-608 (1985).
Coveney Peter
D'Angelo Ralph
Plona Thomas
Schwartz Lawrence M.
Finley Rose M.
Pojunas Leonard W.
Schlumberger Technology Corporation
Williams Hezron E.
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