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Using gradient multi-setting cement slurry in long isolation section
Author(s): 
Pages: 43-44
Year: Issue:  6
Journal: DRILLING FLUID & COMPLETION FLUID

Keyword:  多凝水泥浆复合水泥浆长封固段双级固井固井质量;
Abstract: 对于封固段较长的固井作业,采用梯度多凝水泥浆体系,在一定程度上可以代替双级固井,具有很强的优越性.根据不同的井下条件采用有针对性的不同密度、稠度梯度的水泥浆配方,可以防气窜,防漏失,防套管腐蚀,防施工高压,降低固井及钻井成本,缩短建井周期,并能高效地保护油气层,提高固井质量.现场2口井的应用表明,应用该体系水泥浆,固井质量优良.
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