微环隙通道 microannulus path
The model consists of perforation, wellbore, cement casing, oil layer, micro-annulus and transverse fracture.
模型中包括射孔孔眼、套管、水泥环、油层、微环隙和横向裂缝。
参考来源 - 水平井水力压裂数值模拟研究·2,447,543篇论文数据，部分数据来源于NoteExpress
但是在严重的情况下，微环隙可围绕整个套管圆周。
However, in severe cases the microannulus may encircle the entire casing circumference.
模型中包括射孔孔眼、套管、水泥环、油层、微环隙和横向裂缝。
The model consists of perforation, wellbore, cement casing, oil layer, micro-annulus and transverse fracture.
提出消除微裂缝-微环隙的防窜措施，是在固井水泥浆中添加海绵铁及合成橡胶粉。
Channeling can be prevented by adding sponge iron and synthetic rubber powder in cement slurry.
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