| 超低密度高炉矿渣水泥浆研究 |
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| 引用本文： | 路宁,金学智.超低密度高炉矿渣水泥浆研究[J].石油天然气学报,1999,21(1):48-50. |
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| 作者姓名： | 路宁 金学智 |
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| 作者单位： | 长庆石油勘探局钻采工艺研究院,陕西,西安,710021 |
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| 摘 要： | 针对油田在低压易漏地层中使用１．４０￣１．６０ｇ／ｃｍ＾３的低密度水泥浆固井存在水泥浆返高不够，固井质量差等问题，结合矿渣膨润土水泥浆。矿渣ＭＴＣ固井技术和多功能钻井液固井技术，利用矿渣和漂珠等材料设计了密度１．２０￣１．３５ｇ／ｃｍ＾３的超低密度矿渣膨润土水泥浆，矿渣ＭＴＣ浆和矿渣ＵＦ浆。
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| 关 键 词： | 固井 水泥浆 膨润土 (高炉矿渣水泥浆) 固井质量 |
| 文章编号： | 1000－9752(1999)01－0048－03 |
| 修稿时间： | 19980715 |
A Study and Application of Ultra-low Density BFS Cement Slurry to Well Cementing |
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| LU Ning,JING Xue-zhi.A Study and Application of Ultra-low Density BFS Cement Slurry to Well Cementing[J].Journal of Oil and Gas Technology,1999,21(1):48-50. |
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| Authors: | LU Ning JING Xue-zhi |
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| Abstract: | In the light of blast furnace slag (BFS)/bentonite cement slurry,BFS/MTC cementing technology and universal (drilling) fluid (UF) cementing technology, three ultra low density cement systems, BFS/bentonite, BFS/MTC and BFS/UF with a density range of 1 20-1 35 g/cm 3 are developed by using BFS and floating beads to deal with inadequacy of cement top and poor cementing when using light weight (1 40-1 60 g/cm 3 ) slurry for cementing thief zones of low pressure encountered also in two stage cementing operation of gas wells. The compressive strength, setting time, rheology and stability of the three cement systems are compared and analyzed Both laboratory experimemts and field tests are carried out on the rheology, stability and compressive strength of the 3 systems The results from field test of ultra low density BFS cement slurry are analyzed showing its excellent rheology, high stability and compressive strength and the capability to reduce greatly the cementing cost and to increase the cementing quality in thief zones of low pressure as well as in two stage cementing operation of oil and gas wells |
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| Keywords: | cementing cement slurry blast furnace slag(BFS) cementing quality |
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