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Method of controlling and/or inhibiting strength retrogression during cementing
Method of controlling and/or inhibiting strength retrogression during cementing
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机译:控制和/或抑制固结过程中强度退化的方法
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摘要
Cementitious slurries capable of controlling and/or preventing strength retrogression during the cementing of a formation contain a bismuth salt or derivative thereof. Bismuth trioxide is preferred. The cementitious slurry may further contain a density modifying agent and/or strength enhancer. The cementitious slurries of the invention are suitable for use over a broad temperature range of from about 45° F. to about 500° F.
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