| 中原油田气举井油套管腐蚀原因分析 |
| |
| 引用本文： | 李振智,杨辉,赵锋洛,黄雪松. 中原油田气举井油套管腐蚀原因分析[J]. 石油机械, 2001, 29(11): 3-6 |
| |
| 作者姓名： | 李振智 杨辉 赵锋洛 黄雪松 |
| |
| 作者单位： | 1. 中原油田分公司第五采由厂
2. 中原油田分公司采油工程技术研究院 |
| |
| 摘 要： | 采用Ｘ射线衍射分析、电子探针显微分析和硫酸盐还原菌分析检测，对中原油田气举井文１３－１２７井套管及文１３－２５７井油管管材、腐蚀产物和两口井的水质进行了检测分析并做了窝蚀试验。结果表明，中厚油田气举井产出水高矿比度及含ＣＯ２是发生瘸蚀的主要原因；油管螺纹处存在缝隙、套管钢材中夹杂物的局部分布及流体冲刷是加剧油套管局部腐蚀穿孔的另一原因。采取涂防腐螺纹油和在油井环空投加缓蚀剂已见到明显防腐效果。
|
| 关 键 词： | 气举井 油管 套管 腐蚀 失效分析 |
| 修稿时间： | 2001-04-09 |
Reasons of corrosion of tubings and casings in gas-lift wells inZhongyuan Oilfield |
| |
| Li Zhenzhi,Yang Hui,Zhao Fengluo,et al.. Reasons of corrosion of tubings and casings in gas-lift wells inZhongyuan Oilfield[J]. China Petroleum Machinery, 2001, 29(11): 3-6 |
| |
| Authors: | Li Zhenzhi Yang Hui Zhao Fengluo et al. |
| |
| Abstract: | The corrosion of tubings and casings in the gas-lift wells in Zhongyuan Oilfield is detected and analyzed. And corrosion test is made. The test and analysis shows that, the main reasons of tubing and casing corrosion lie in the produced water having high salinity and containing C02 while the gaps in tubing threads, the local distribution of impurities in casing steel material and the fluid scouring are the other reasons for local corrosion and perforation of tubings and casings. Coating corrosion-proof thread compound and adding corrosion inhibitors in the annulus have achieved obvious anti-corrosion effect. |
| |
| Keywords: | Subject Concept Terms gas-lift well tubing casing corrosion failure analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
