一种可固化防漏工作液水化机理研究

李早元; 周靖东; 邓智中; 郭小阳

doi:10.3969/j.issn.1001-5620.2017.02.017

一种可固化防漏工作液水化机理研究

doi: 10.3969/j.issn.1001-5620.2017.02.017

油气藏地质及开发工程国家重点实验室·西南石油大学, 成都 300452

基金项目:

国家自然科学基金"基于多相渗流理论的环空气窜机理及应用基础研究"（51574203）。

详细信息

作者简介:
李早元,博士,1976年生,毕业于西南石油大学油气井工程专业,现在从事油气井固井与完井工程教学与科研工作。电话13982045007;E-mail:swpilzy@swpu.edu.cn。

中图分类号: TE256.6
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- 文章访问数: 439
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出版历程
- 收稿日期: 2017-01-09
- 刊出日期: 2017-03-31

Research on the Hydration Mechanism of A Kind of Solidifiable Leakage-proof Working Fluid

Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500

摘要

摘要: 研究了一种低密度（1.30 g/cm³）可固化防漏工作液，用于解决低压易漏失井段在固井时，因地层承压能力低、易漏失、窜槽，导致固井质量不高的问题。通过在优质的隔离液中加入一种具有固化性能的材料（2.60~2.90 g/cm³）替代常规的加重剂，配制一种低密度可固化工作液。该工作液能有效平衡地层压力并在环空中固化，从而对易漏地层起到防漏效果、提高固井质量。重点分析了该体系的固化后试样强度及水化机理，研究发现：工作液固化强度发展的实质是OH-对固化剂玻璃体结构的破坏；通过对配方的调节能实现从30~90℃固化试样都具备一定的抗压强度。该体系的研发对于防漏工作液的设计提供了一种新的思路，同时还可以运用于钻井工程中堵漏，提高地层的承压能力。
- 井漏 /
- 堵漏 /
- 固化剂 /
- 强度 /
- 水化机理
Abstract: While cementing in the low pressure and easy to leak hole section, low formation bearing pressure、leakage and channeling often lead to low cementing quality. So a low density (1.30 g/cm³) working fluid which can be solidifiable and prevent leakage was studied to solve the problem. The working fluid was made form the high quality spacer fluid in which a kind of curing properties of the material (2.60~2.90 g/cm³)replacing weighting material was added. The working fluid can effectively balance formation pressure and cure in annulus, thus preventing leakage and improving cementing quality. The strength of samples after curing and hydration mechanism of the working fluid were mainly analyzed in the paper. The results showed that the structure of the curing strength development is that hydroxyl ions damaged the vitreous body structure of the curing agent. Through the adjustment of the formula, curing test specimens from 30~90℃ had a certain compressive strength. The research and development of the working fluid system provided a new way for the design of the leak protection working fluid. The working fluid system can also be applied to sealing in drilling engineering to increasing the formation bearing pressure.
- Circulation loss /
- Sealing /
- Curing agent /
- Compressive strength /
- Hydration mechanism

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参考文献(12)

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一种可固化防漏工作液水化机理研究

doi: 10.3969/j.issn.1001-5620.2017.02.017

作者简介:
李早元,博士,1976年生,毕业于西南石油大学油气井工程专业,现在从事油气井固井与完井工程教学与科研工作。电话13982045007;E-mail:swpilzy@swpu.edu.cn。

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Research on the Hydration Mechanism of A Kind of Solidifiable Leakage-proof Working Fluid

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目录

祝贺《钻井液与完井液》入选2023年版北大核心期刊！

留言板

一种可固化防漏工作液水化机理研究

doi: 10.3969/j.issn.1001-5620.2017.02.017

作者简介: 李早元,博士,1976年生,毕业于西南石油大学油气井工程专业,现在从事油气井固井与完井工程教学与科研工作。电话13982045007;E-mail:swpilzy@swpu.edu.cn。

计量

出版历程

Research on the Hydration Mechanism of A Kind of Solidifiable Leakage-proof Working Fluid

计量

出版历程

目录

祝贺《钻井液与完井液》入选2023年版北大核心期刊！

作者简介:
李早元,博士,1976年生,毕业于西南石油大学油气井工程专业,现在从事油气井固井与完井工程教学与科研工作。电话13982045007;E-mail:swpilzy@swpu.edu.cn。