| 耐高温（230 ℃）饱和盐水钻井液技术研究 |
| 投稿时间：2013-08-01 修订日期：2013-08-01 点此下载全文 |
| 引用本文：陶士先,张丽君,单文军.耐高温（230 ℃）饱和盐水钻井液技术研究[J].钻探工程,2014,41(1):21-26.TAO Shi-xian,ZHANG Li-jun,SHAN Wen-jun. Research on Ultra High Temperature (230℃) Saturated Drilling Fluid Technology[J]. Drilling Engineering, 2014,41(1):21-26. |
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| 基金项目:深部探测技术与实验研究专项“深部探测关键仪器装备研制与实验”之“深部大陆科学钻探装备研制”（SinoProbe-09-05）的“高温钻井液体系研究”专题 |
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| 中文摘要:我国未来深部大陆科学钻探计划深度为13000 m，温度梯度按3.0 ℃/100 m计算，井底温度将达到390 ℃以上，钻井液将面临超高温高压环境，钻井液技术将面临严峻考验。为此，开展了超高温钻井液的预研究，利用抗盐粘土、抗高温降滤失剂、抗高温解絮凝剂、抗高温保护剂等，研制了可用于230 ℃高温环境的饱和盐水钻井液配方。室内评价试验表明，用该配方配制的耐高温钻井液经230 ℃、16 h高温滚动老化后，具有良好的流动性能，高温高压失水量（210 ℃、3.45 MPa）＜35 mL/30 min。 |
| 中文关键词:超高温 降滤失剂 解絮凝剂 高温保护剂 耐高温钻井液 |
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| Research on Ultra High Temperature (230℃) Saturated Drilling Fluid Technology |
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| Abstract:The planned depth of future continental scientific drilling program is 13000m, based on the geothermal gradient of 3℃/100m, the bottom hole temperature will reach more than 390℃, so the drilling fluids technology will face a severe challenge to be applied in an extremely high temperature and high pressure environment. In this case, the pilot study was carried out on the ultra high temperature drilling fluid, with salt resistant clay, high temperature filtration reducer, high temperature deflocculant and high temperature protective agent, the saturated salt water drilling fluid composition was developed, this drilling fluid could work in the environments of more than 230℃. The indoor evaluation test demonstrated that this drilling fluid can still keep good flowing property and the water loss is less than 35mL/30min after 230℃ rolling aging test for 16 hours. |
| keywords:ultra high temperature filtrate reducer deflocculant high temperature protective agent high temperature drilling fluids |
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