| 螯合酸解堵在渤南低产低效井综合治理中的研究与应用 |
| |
| 引用本文： | 何滨,邹德昊,卢轶宽,李金泽,王伟. 螯合酸解堵在渤南低产低效井综合治理中的研究与应用[J]. 海洋石油, 2021, 41(4): 37-42. DOI: 10.3969/j.issn.1008-2336.2021.04.037 |
| |
| 作者姓名： | 何滨 邹德昊 卢轶宽 李金泽 王伟 |
| |
| 作者单位： | 中海石油(中国)有限公司天津分公司,天津300450 |
| |
| 摘 要： | 渤中34-2/4油田水驱开发生产后出现井筒结垢、储层污染、供液不足等问题造成产量大幅度下滑.普通酸化解堵对钡锶垢效果差,酸化后的残酸对海上平台油气水处理流程影响大,严重制约了常规酸化解堵技术的推广应用.对此研发了螯合酸解堵工艺技术,有效解除钙、镁、铁、钡、锶等多种无机垢的伤害,具有强烈抑制金属离子二次沉淀、反应时间长、...
|
| 关 键 词： | 螯合酸体系 井筒积垢 渤中油田 酸化解堵 |
| 收稿时间： | 2021-02-05 |
Research and Application of Chelating Plugging Removal in Comprehensive Treatment of Low Production and Low Efficiency Wells in Bonan Oilfield |
| |
| Affiliation: | CNOOC (China) Tianjin Branch, Tianjin 300450, China |
| |
| Abstract: | After water drive development and production in Bozhong 34-2/4 Oilfield, problems such as wellbore scaling, reservoir pollution and insufficient fluid supply have occurred, resulting in a significant decline in production. The effect of conventional acidizing plugging removal technology on barium strontium scale is poor, and the residual acid after acidizing has great influence on the oil, gas and water treatment process of offshore platform, which seriously restricts the popularization and application of conventional acidizing and plugging removal technology. In this regard, chelating plugging removal technology is developed, which can effectively remove the damage of calcium, magnesium, iron, barium, strontium and other inorganic scales. It has a series of advantages, such as strong inhibition of secondary precipitation of metal ions, long reaction time, large treatment radius, and not easy to cause secondary pollution. It has greatly enriched the technical system of oil well plugging removal, forming the unique fourth generation plugging removal technology, which provides a strong technical support for the grand goal of "stable production of 30 million in Bohai Oilfields for another 10 years". Shahejie formation of Bozhong 34-2/4 Oilfield not only effectively restored 11 lying wells, increased the utilization rate of oil wells by 61%, increased the daily oil production by 690 cubic meters, but also created a 100% efficiency in the treatment of low production and low efficiency wells . |
| |
| Keywords: | |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《海洋石油》浏览原始摘要信息 |
|
点击此处可从《海洋石油》下载全文 |
|
