抗高温防塌处理剂合成研究与评价

孔勇; 杨小华; 徐江; 刘贵传; 王海波; 张国

doi:10.3969/j.issn.1001-5620.2016.02.004

抗高温防塌处理剂合成研究与评价

doi: 10.3969/j.issn.1001-5620.2016.02.004

中国石化石油工程技术研究院, 北京 100101

基金项目: 中石化科技攻关项目"顺南深部复杂地层钻井液技术研究"(P14114)。

详细信息

作者简介:
孔勇,副研究员,博士,1986年生,毕业于南开大学有机化学专业,现在从事钻井液技术研究工作。E-mail:kyloner003@163.com。

中图分类号: TE254.4
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出版历程
- 收稿日期: 2015-12-25
- 刊出日期: 2016-03-31

Synthesis and Evaluation of a High Temperature Inhibitive Additive

Sinopec Research Institute of Petroleum Engineering, Beijing 100101, China

摘要

摘要: 针对高温深部复杂地层的钻探需求,采用分子结构设计思路,通过优化设计骨架、形变和分散性能,优选反应原料和合成方法,设计并研发出具有高温变形、弹性封堵、黏结固壁等功能的抗高温防塌处理剂FT-200。通过红外光谱、核磁谱图、元素分析、热失重等方法对FT-200进行结构表征。结果表明,所制得的FT-200达到设计目标,具有良好的抗高温性能。进一步通过压力传递实验、扫描电镜、高温高压滤失、加量优化、配伍性能、不同密度下钻井液性能的研究对其进行性能评价。结果表明FT-200抗温可达200℃以上,泥页岩渗透率可降低70%以上,明显改善了滤饼质量,显著降低了高温高压滤失量,且具有良好的配伍性,能够有效封堵硬脆性泥岩的微裂缝,提高钻井液的封堵防塌性能。
- 抗高温 /
- 防塌 /
- 分子结构设计 /
- 合成 /
- 评价
Abstract: A high temperature inhibitive agent,FT-200 has recently been developed for use in high temperature deep well penetrating complex formations.FT-200 was developed through design of molecular structure,optimization of deformation and dispersion properties,and optimization of reaction raw materials and synthesis method.FT-200 deforms at high temperature and plugs micro fractures through elasticity.It improves the strengths of unstable formations through cementation.Characterization of FT-200 through IR spectrum,NMR spectrometry,elementary analysis and TGA reveals that FT-200 has excellent high temperature property,fulfilling the design objective.Evaluation of the performance of FT-200 in drilling fluids indicates that FT-200 functions normally at temperature up to 200℃,and shales treated with FT-200 drilling fluid have their permeability reduced by more than 70%.The quality of mud cakes is improved by FT-200,and HTHP filter loss can be reduced remarkably using FT-200.FT-200 is compatible with commonly used drilling fluid additives,and it effectively seals off the micro fractures found in hard-brittle shales.
- Resistant to high temperature /
- Borehole collapse prevention /
- Molecular structure design /
- Synthesis /
- Evaluation

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