| WLD暂堵剂的研制及应用 |
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| 引用本文： | 李庆松.WLD暂堵剂的研制及应用[J].大庆石油地质与开发,2004,23(6):55-57. |
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| 作者姓名： | 李庆松 |
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| 作者单位： | 大庆油田有限责任公司,采油工程研究院,黑龙江,大庆,163453 |
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| 摘 要： | 在堵水封窜作业中,如何保护非目的层不受污染,是施工成功与否的关键。新研制的WLD暂堵剂成胶后粘度在10 000 mPa·s以上,经过一段时间后破胶,粘度可降至200 mPa·s以下。室内岩心实验表明,经暂堵后,中低渗透率岩心可承压10 MPa以上,破胶后岩心渗透率恢复率大于85％。利用该技术与现有的封窜技术结合进行2口井现场试验,从试验结果看,控制了对非目的层的污染,取得了良好的效果。
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| 关 键 词： | 暂堵剂 破胶剂 封窜 保护非目的层 |
| 文章编号： | 1000-3754(2004)06-0055-03 |
| 修稿时间： | 2004年4月17日 |
Development and application of WLD temporary blocking agent |
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| Li Qing-song.Development and application of WLD temporary blocking agent[J].Petroleum Geology & Oilfield Development in Daqing,2004,23(6):55-57. |
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| Authors: | Li Qing-song |
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| Abstract: | During water plugging operation, the key factor of success is how to protect non-target zones from pollution. The viscosity of our developed WLD temporary blocking agent can reach 10000mPa. s after cementation, and decline to 200mPa. s after gelation. Indoor core testing indicates that cores of low and medium permeability can endure 10MPa pressure after temporary blocking, and core recovery rate is above 85% after gelation. Combining this technique with the current plugging technique, a field test is done in two wells. The result shows very good effect. |
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| Keywords: | temporary blocking agent gel breaker plugging non-target zones protection |
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