海上低渗储层自降解暂堵液研究与应用

宋吉锋; 梁玉凯; 周玉霞; 程利民; 贾辉

doi:10.3969/j.issn.1001-5620.2018.04.013

海上低渗储层自降解暂堵液研究与应用

doi: 10.3969/j.issn.1001-5620.2018.04.013

中海石油(中国)有限公司湛江分公司, 广东湛江 524057

基金项目:

“十三五”国家科技重大专项课题“南海西部海域低渗油藏勘探开发关键技术”（2016ZX05024-006）部分研究成果。

详细信息

作者简介:
宋吉锋,助理工程师,1987年生,毕业于西安石油大学应用化学专业,现在从事储层保护科研工作。电话15016467568;E-mail:sjf_wh@126.com。

中图分类号: TE258
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- 文章访问数: 627
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出版历程
- 收稿日期: 2018-04-03
- 刊出日期: 2018-07-30

Study and Application of Self-degrading Temporary Plugging Fluid for Offshore Low Permeability Reservoirs

CNOOC Zhanjiang Branch Company, Zhanjiang, Guangdong 524057

摘要

摘要: 针对南海西部涠洲RRX油田低渗储层修井漏失造成水敏、水锁伤害的问题，通过单因素实验分析及药剂协同复配，研发了一套自降解暂堵液体系。室内实验结果表明，该体系流变性能优异，滤失量低，无需替入破胶液，6 d自降解率超过50%；气-液表面张力低于20 mN/m，防膨率超过95%，岩心模拟实验渗透率平均恢复值为90%。在现场应用过程中，零漏失，零污染，可解决低渗储层修井过程中的储层保护难题。
- 低渗储层 /
- 水锁 /
- 水敏 /
- 储层保护 /
- 自降解
Abstract: A self-degrading temporary plugging fluid was developed, through one-factor experiment analysis and synergistic compounding of different additives, to address the water sensitive and water block issues resulted from mud losses during working over the low permeability reservoirs in the Weizhou RRX oilfield in the west of South China Sea. Laboratory experimental results showed that the drilling fluid developed has excellent rheology and low filtration rate. Without injecting gel breaker, 50% of the gels developed in the drilling fluid were degraded in 6 days. Surface tension of the drilling fluid filtrate is less than 20 mN/m. The inhibitive capacity of the drilling fluid is at least 95%. Core experiment with the drilling fluid showed that the average percent permeability recovery is 90%. No mud loss and contamination to reservoir were found in field application of the drilling fluid, demonstrating the ability of the drilling fluid to minimize damage to low permeability reservoirs during workover operation.
- Low permeability reservoir /
- Water block /
- Water sensitive /
- Reservoir protection /
- Self degrading

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参考文献(9)

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海上低渗储层自降解暂堵液研究与应用

doi: 10.3969/j.issn.1001-5620.2018.04.013

作者简介:
宋吉锋,助理工程师,1987年生,毕业于西安石油大学应用化学专业,现在从事储层保护科研工作。电话15016467568;E-mail:sjf_wh@126.com。

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Study and Application of Self-degrading Temporary Plugging Fluid for Offshore Low Permeability Reservoirs

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留言板

海上低渗储层自降解暂堵液研究与应用

doi: 10.3969/j.issn.1001-5620.2018.04.013

作者简介: 宋吉锋,助理工程师,1987年生,毕业于西安石油大学应用化学专业,现在从事储层保护科研工作。电话15016467568;E-mail:sjf_wh@126.com。

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出版历程

Study and Application of Self-degrading Temporary Plugging Fluid for Offshore Low Permeability Reservoirs

计量

出版历程

目录

作者简介:
宋吉锋,助理工程师,1987年生,毕业于西安石油大学应用化学专业,现在从事储层保护科研工作。电话15016467568;E-mail:sjf_wh@126.com。