| 复合盐钻井液对钻具的腐蚀机理研究 |
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| 引用本文： | 唐善法,付绍斌,冯定,童伏松,张琦,马成发.复合盐钻井液对钻具的腐蚀机理研究[J].武汉理工大学学报,1997(3). |
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| 作者姓名： | 唐善法 付绍斌 冯定 童伏松 张琦 马成发 |
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| 作者单位： | 江汉石油学院，江汉油田钻井处 |
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| 基金项目： | 石油天然气总公司“八五”重点攻关项目 |
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| 摘 要： | 通过电子探针、Ｘ－射线衍射、扫描电镜分析研究江汉油田钻具腐蚀产物的全元素构成、物相组成、腐蚀形貌以及测试钻井液滤液化学性质等，确立了江汉油田复合盐钻井液对钻具的腐蚀主要由氧的阴极去极化作用控制的观点；指出钻井液中的盐及复盐、处理剂、介质的ｐＨ值、温度、冲刷速度等通过氧的排驱，扩散速度改变以及材料表面形成钝化膜或缓蚀剂膜而影响钻具腐蚀的进一步发生；因此适合于江汉油田复合盐钻井液的缓蚀剂应是一种抗温、抗复合盐、成膜性强、耐冲刷和具有除氧功能的多效剂。
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| 关 键 词： | 复合盐钻井液 钻具腐蚀 腐蚀机理 腐蚀因素 |
A Corrosion Mechanism Research of Drill Stem in Double Salt Drilling Fluid |
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| Tang Shanfa,Dept.of Petroleum Engineering,JPI,Jingzhou ,China. Fu Shaobin Feng Ding Tong Fusong Zhang Qi Ma Chengfa.A Corrosion Mechanism Research of Drill Stem in Double Salt Drilling Fluid[J].Journal of Wuhan University of Technology,1997(3). |
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| Authors: | Tang Shanfa Deptof Petroleum Engineering JPI Jingzhou China Fu Shaobin Feng Ding Tong Fusong Zhang Qi Ma Chengfa |
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| Affiliation: | Tang Shanfa,Dept.of Petroleum Engineering,JPI,Jingzhou 434102,China. Fu Shaobin Feng Ding Tong Fusong Zhang Qi Ma Chengfa |
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| Abstract: | In this paper, a corrosion mechanism of drilling stem in double salt drilling fluild is established by means of EPMA.X DIFFRACTION, SEM and chemistry analysis, and a series of corrosion effect factor, such as:kind of salt and drilling fluid additive,pH temperature and flowing velocity of drilling fluid, is detailedly studied. |
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| Keywords: | corrosion mechanism drill stem double salt drilling fluid |
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