| 六种成膜封堵剂的室内实验优选与评价 |
| 投稿时间：2020-08-12 修订日期：2020-10-20 点此下载全文 |
| 引用本文：王建伟.六种成膜封堵剂的室内实验优选与评价[J].钻探工程,2021,48(3):73-77.WANG Jianwei. Optimization and evaluation of six film-forming plugging agents by laboratory test[J]. Drilling Engineering, 2021,48(3):73-77. |
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| 中文摘要:为更好地服务深部钻探工程，准确了解冲洗液封堵性能，对6种成膜封堵剂开展了砂床实验、API静失水量实验、流变性能实验及抗温实验等室内实验进行优选与评价。实验结果表明，2号和4号成膜封堵剂在6种成膜封堵剂中封堵性能最好，它们在基浆中的最优加量均为2%，100 ℃温度条件下加入这2种封堵剂的冲洗液具有较好的抗温性能；冲洗液中膨润土含量和处理剂是影响冲洗液封堵性能的2个重要因素：膨润土含量越高，冲洗液封堵性能越好，加入聚合物、降滤失剂等处理剂可以提高冲洗液的封堵性能。砂床实验是评价冲洗液封堵性能好坏的重要依据。 |
| 中文关键词:深部钻探工程 冲洗液 成膜封堵剂 砂床实验 抗温实验 |
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| Optimization and evaluation of six film-forming plugging agents by laboratory test |
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| Abstract:In order to better serve deep drilling engineering and accurately understand the plugging performance of the drilling fluid， six film-forming plugging agents were optimized and evaluated by sand bed test， API static water loss test， rheological property test and temperature resistance test in different drilling fluid systems. The results showed that 2# and 4# film-forming plugging agents had the best plugging performance among the six film-forming plugging agents， and the optimal dosage of them in the basic drilling fluid was 2%.The drilling fluid added with 2# and 4# plugging agents at 100℃ had better temperature resistance. The bentonite content and the additive are two important factors affecting the plugging performance of the drilling fluid： the higher the bentonite content， the better the plugging performance of the drilling fluid， and the plugging performance of the drilling fluid can be improved by adding polymer and the filtrate reducer. Sand bed experiment is an important basis to evaluate the plugging performance of the drilling fluid. |
| keywords:deep drilling engineering drilling fluid film-forming plugging agent sand bed test temperature resistance test |
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