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| 二氧化碳腐蚀对油井水泥石抗压强度的影响(英文) | |
| 引用本文： | 张景富,王宇,徐明,赵强.二氧化碳腐蚀对油井水泥石抗压强度的影响(英文)[J].硅酸盐学报,2009,37(4). |
| 作者姓名： | 张景富 王宇 徐明 赵强 |
| 作者单位： | 1. 大庆石油学院,提高油气采收率教育部重点实验室,黑龙江,大庆,163318 2. 西南石油大学,石油工程学院,成都,610500 3. 冀东油出公司,河北,唐山,063200 |
| 摘 要： | 利用扫描电子显微镜、强度测试仪检测了不同条件下二氧化碳腐蚀油井水泥的产物、微观结构及抗压强度,研究了二氧化碳腐蚀油井水泥的机理及腐蚀对水泥强度的影响,分析和评价出了适合于大庆油田不同温度深井条件的水泥浆体系.结果表明:二氧化碳对油井水泥的腐蚀作用本质在于二氧化碳能够与水泥的水化产物发生化学作用,生成了各种不同晶体结构的CaCO3产物,使原有的水泥石微观结构遭到破坏,导致腐蚀后水泥石的强度下降;温度和二氧化碳分压增高;改善水泥石抗腐蚀能力应以有效改善水泥水化产物及微观结构为基础,添加抗腐蚀填充材料能有效改善水泥浆体系的抗腐蚀能力. |
| 关 键 词： | 油井水泥 二氧化碳 腐蚀 抗压强度 |
EFFECT OF CARBON DIOXIDE CORROSION ON COMPRESSIVE STRENGTH OF OILWELL CEMENT |
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| ZHANG Jingfu,WANG Yu,XU Ming,ZHAO Qiang.EFFECT OF CARBON DIOXIDE CORROSION ON COMPRESSIVE STRENGTH OF OILWELL CEMENT[J].Journal of The Chinese Ceramic Society,2009,37(4). | |
| Authors: | ZHANG Jingfu WANG Yu XU Ming ZHAO Qiang |
| Affiliation: | 1. Enhanced Oil and Gas Recovery Key Laboratory;Ministry of Education;Daqing Petroleum Institute;Daqing 163318;Heilongjiang;2. Petroleum Engineering Institute;Xinan Petroleum University;Chengdu 610500;3. Jidong Oilfield Corp;Tangshan 063200;Hebei;China |
| Abstract: | The composition of the corrosion products,the microstructures and the compressive strength of corroded cement samples were examined by scanning electron microscopy and strength testing under different corrosion conditions by carbon dioxide(CO2) . The corrosion mechanism of oilwell cement by CO2 and the effects of CO2 corrosion on the compressive strength of oilwell cement were investigated. Oilwell cement slurries suitable for the deep wells at different temperatures in the Daqing oil field were analyzed. T... |
| Keywords: | oilwell cement carbon dioxide corrosion compressive strength |
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