摘要
如何客观、准确评价水泥浆的防窜能力 ,至今仍是国内外固井界未能很好解决的难题。文章通过室内实验 ,研究了水泥浆有效浆柱压力、气侵阻力与其影响因素间的定量关系 ,并建立了二者在水泥浆凝结过程中的计算模型 ,使环空窜流发生条件得以量化而用以预测、评价水泥浆在凝结过程中的防窜能力 。
How to objectively and accurately evaluate the channeling-preventing ability of cement slurry is still a difficult problem which is not solved up to now in the well cementing circles at home and abroad. In this paper, through lab experiment, the quantitative relationship between the effective slurry column pressure and gas cutting resistance and the factors which affect the former two is studied and their calculation model in the process of cement slurry setting is set up, making the condition to cause the breakthrough flow in annulus quantization, which can be used for predicting and evaluating the channeling-preventing ability of cement slurry in the process of setting, providing thus a new reference method for the design to prevent channeling in well cementing.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
2001年第2期52-55,共4页
Natural Gas Industry
基金
中国石油天然气集团公司"九五"重点科技攻关课题的研究内容之一! (96 0 40 3 0 1)
