摘要
在固井候凝期间,由于蹩压引起套管弹性膨胀,在水泥环与套管之间形成微环隙。本文就此问题进行理论推算,并针对国内各种规格套管作出微环隙计算图版。
In solidification period of cementing, well casing inflation due to high pressure causesmicroannulus between casing and cement annulus outside the casing. This work deals withmicroannulus theoretically. Evaluation charts are calculated in accordance with specificationof various domestic casing pipes for microannulus interpretation.
