耐240℃高温水基成膜钻井液的室内研究

李颖; 谭现锋; 韩炜超; 李铠君; 郭明义

doi:10.3969/j.issn.1001-5620.2019.05.004

耐240℃高温水基成膜钻井液的室内研究

doi: 10.3969/j.issn.1001-5620.2019.05.004

1. 吉林大学建设工程学院, 长春 130026;
2. 山东省鲁南地质工程勘察院, 山东济宁 272100

基金项目:

吉林省省校共建计划专项"深部地热资源（含干热岩）勘查与开发利用"（SXGJSF2017-5）；山东省地矿局地质科技攻关项目"页岩气钻探用高效低阻仿生钻进取样技术研究"（KY201506）

详细信息

作者简介:
李颖,在读硕士研究生,1997年生,地质工程专业,现在从事钻井液研究工作。电话15754300396;E-mail:961681562@qq.com

通讯作者:
郭明义,副教授。电话13596069757

中图分类号: TE254.3
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出版历程
- 收稿日期: 2019-05-29
- 刊出日期: 2019-10-30

Laboratory Study on Water Base Filming Drilling Fluid Resistant to 240℃

1. College of Construction Engineering, Jilin University, Changchun, Jilin 130026;
2. Shandong Lu'nan Geology Engineering Investigation Institute, Jining, Shandong 272100

摘要

摘要: 为解决深井井壁失稳及钻井液流变性不稳定、滤失量大的问题，通过引入无机成膜剂和有机成膜助剂稳定井壁，研发出一套耐240℃高温水基成膜钻井液体系。通过正交实验优选体系配方，利用光学显微镜观察页岩表面成膜，通过页岩热滚回收实验、泥球浸泡测试实验、高温高压滤失测试、粒度分析、扫描电镜等测试对钻井液的页岩表面成膜特性、抑制性、流变性能和滤失量进行了室内研究。结合泥饼微观形貌特征进行理论分析，完成了钻井液性能评价，获得了性能稳定的耐高温成膜钻井液配方。结果表明，在240℃下体系流变性能稳定、动切力合理，滤失量低（240℃老化后API滤失量为5.6 mL，200℃高温高压滤失量为14 mL），泥饼薄韧，成膜性能好，且具有良好的抑制性和封堵能力，有望在深井或高温地热钻探施工中应用。
- 水基钻井液 /
- 耐高温 /
- 成膜 /
- 流变性 /
- 滤失量 /
- 性能评价
Abstract: A water base filming drilling fluid has been developed to deal with problems encountered in deep well drilling, such as borehole wall instability, rheology fluctuation and high filtration rate. The drilling fluid, which is formulated with an inorganic filming agent and an organic filming additive, is resistant to high temperatures to 240℃. The drilling fluid was formulated through orthogonal experiment. The filming performance, inhibitive capacity, rheology and filtration rate etc. of the drilling fluid were studied using optical microscope, hot rolling test, mud ball soaking test, HTHP filtration test, particle size analysis, SEM, as well as the observation of the micro morphology of mud cakes. These studies in turn helped optimize the properties of drilling fluid. The experimental results showed that at 240℃, the drilling fluid had stable rheology, suitable yield point, low filtration rate (API filter loss after aging at 240℃ was 5.6 mL, and HTHP filter loss at 200℃ was 14 mL), thin mud cake, good filming performance and superior inhibitive capacity and plugging ability, indicating that this drilling fluid will find wide application in deep well drilling and high temperature geothermal well drilling.
- Water base drilling fluid /
- Resistant to high temperature /
- Filming /
- Rheology /
- Filter loss /
- Performance evaluation

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参考文献(13)

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