紧密堆积水泥浆体系的堆积率计算  

Packing Volume Factor Calculation of Cement Slurry with High Packing

作　　者：周仕明[1] 魏娜[2] 陈玉辉[3] 

机构地区：[1]中国石化石油勘探开发研究院德州石油钻井研究所,山东德州253005 [2]中国石化东北分公司监督公司,吉林长春130000 [3]中国石化华北石油局工程处,河南郑州450006

出　　处：《石油钻探技术》2007年第4期46-49,共4页Petroleum Drilling Techniques

基　　金：中国石油化工股份有限公司重点科研项目"南方海相高压气井防气窜固井技术研究"(编号:P04073)部分研究成果

摘　　要：紧密堆积水泥浆体系在油气井固井中应用越来越广泛,衡量其紧密堆积程度的主要参数是堆积率(PVF)。通过对颗粒堆积的理论推导,分析了颗粒之间堆积的组合形式,从粒径分析角度对堆积率进行了理论计算,为设计高性能紧密堆积水泥浆体系提供了理论指导和参考。计算分析结果表明:采用单一颗粒不能达到紧密堆积;适当增加粗粒组分的数目,可提高堆积率,使它接近最紧密堆积,但当组分大于3时,实际意义不大。Cement slurry with high packing has been widely used in well cementing operations. Packing volume factor（PVF） is a main parameter to evaluate the packing degree. Based on theoretical deduction of particle packing, various packing forms among particles have been analyzed, and the PVF was calculated in terms of particle size. This study can provide the theoretical guidance and references to design high quality cement slurry with high packing. Calculation results indicate that cement slurry can not have high packing with only one single size of particle. The increase of the number of size of particle can increase the packing density. When the number is higher than 3, there is no actual beneficial.

关 键 词：堆积率 颗粒组分 紧密堆积 水泥浆 

分 类 号：TE256.6[石油与天然气工程—油气井工程]