Primary Cementing Improvement by Casing Vibration During Cement Curing Time
- 1 August 1988
- journal article
- Published by Society of Petroleum Engineers (SPE) in SPE Production Engineering
- Vol. 3 (03) , 339-345
- https://doi.org/10.2118/14199-pa
Abstract
Summary: Vibration of casing to improve primary cementing was investigated in the laboratory and in a 200-ft [60-m] deep test well. The effect of vibration is to decrease or to eliminate gel strength of the cement slurry as it is curing. The slurry then flows downward to compensate for shrinkage and re-establishes the hydrostatic head of the cement. This method can prevent pore-fluid entry into the annulus before the cement cures and can increase the radial stress at the interface between the formation and the cured cement.Keywords
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