一种油基钻井液用凝胶堵漏体系及其应用

纪卫军; 杨勇; 闫永生; 唐国旺

doi:10.3969/j.issn.1001-5620.2021.02.011

一种油基钻井液用凝胶堵漏体系及其应用

doi: 10.3969/j.issn.1001-5620.2021.02.011

1. 北京三和润井科技有限公司, 北京 102400;
2. 建设综合勘察研究设计院有限公司, 北京 100007;
3. 北京燃气昌平有限公司, 北京 102200;
4. 中国地质大学(北京)工程技术学院, 北京 100083

基金项目:

企事业单位委托科技项目“杭锦旗地区化学凝胶堵漏技术研究”（H0650801）

详细信息

作者简介:
纪卫军,1985年生,北京探矿工程研究所高级工程师,现在从事钻井液技术研究,电话13341896840,E-mail:weijuncugb@163.com

中图分类号: TE282
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出版历程
- 收稿日期: 2021-11-12

Gel Plugging System for Oil-Based Drilling Fluid and Its Application

1. Beijing Sanhe Runjing Technology Co., Ltd., Beijing 102400;
2. CIGIS(CHINA) LIMITED, Beijing 100007;
3. Beijing Gas Changping Co., Ltd., Beijing 102200;
4. School of Engineering and Technology, China University of Geosciences(Beijing), Beijing 100083

摘要

摘要: 通过对页岩气钻井的研究和分析，综合比较国内外油基钻井液堵漏技术的不足，研究了一种油基钻井液用凝胶堵漏体系。通过红外测试、X射线衍射和扫描电镜分析研究了凝胶体系的相关组分，证明了结合剂合成成功。通过高温高压养护釜进行养护，使用压力实验机测定凝胶堵漏体系的抗压强度可以达到3.2 MPa，室内实验显示化学凝胶流变性好，密度可调（0.77～1.3 g/cm³），成胶强度可调（1.7～3.2 MPa）；同时凝胶体系和油基钻井液之间具有良好的兼容性，向凝胶堵漏体系中加入20%油基钻井液后抗压强度也可以达到1.8 MPa。现场应用显示油基钻井液用凝胶堵漏体系的抗压强度可以达到6.8 MPa，表明该凝胶堵漏体系具有优异堵漏效果，具有广阔的应用前景。
- 凝胶堵漏体系 /
- 油基钻井液 /
- 强度高 /
- 密度可调
Abstract: Based on the research and analysis of modern shale gas drilling, and comprehensively comparing the shortage of oilbased drilling fluid plugging technology at home and abroad, a gel plugging system for oil-based drilling fluid is studied. The related components of the gel system were studied by IR, X-ray diffraction and scanning electron microscopy. The results showed that the binding agent was successfully synthesized. The high temperature and pressure curing kettle was used for curing. The compressive strength of the gel plugging system could reach 3.2 MPa by using the pressure tester. The laboratory tests showed that the rheological properties of the gel were good, the density was adjustable (0.77-1.3 g/cm³), the gel strength was adjustable (1.7-3.2 MPa), and the gel system and the oil-based drilling fluid system had good compatibility, adding 2 to the gel plugging system. The compressive strength of 0 oil-based drilling fluid can also reach 1.8MPa. Field application shows that the compressive strength of gel plugging system for oil-based drilling fluid can reach 6.8 MPa, which perfectly displays the excellent plugging effect of gel plugging system and has broad application prospects.
- Gel plugging system /
- Oil-based drilling fluid /
- High strength /
- Adjustable density

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参考文献(10)

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