| 松科一井（主井）取心钻进工艺 |
| 投稿时间：2008-04-23 点此下载全文 |
| 引用本文：朱永宜,王稳石.松科一井（主井）取心钻进工艺[J].钻探工程,2008,35(9):1-5,10.ZHU Yong-yi,WANG Wen-shi. Coring Drilling Technology in Well-1 (main shaft) of Songliao Scientific Drilling[J]. Drilling Engineering, 2008,35(9):1-5,10. |
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| 基金项目:国家重点基础发展研究计划(973计划)项目“白垩纪地球表层系统重大地质事件与温室气候变化”(编号:2006CB01400) |
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| 中文摘要:松科一井的科学目标之一，是通过厘米级样品的取样与分析，建立全球范围内可对比的、高分辩率的陆相白垩系综合地质剖面，将传统地质学百万年的时间分辨率提高到万年尺度。因此，岩心采取率指标对松科一井的地质研究具有极其重要的意义。根据主井不同地层，研发与选用硬质合金、PDC、孕镶金刚石3类12种结构形式的钻头和2种隔液保形单动双管取心钻具，采用转盘单回转与螺杆马达+转盘复合回转钻进工艺，在长井段复杂地层取心钻进163041 m，获原状砂样采集率8207%、岩心采取率9492%的技术指标。详细介绍了取心钻具结构与钻柱组合、取心作业的难点，及相应的工艺措施与技术效果。 |
| 中文关键词:大陆科学钻探 松科一井 复杂地层 取心钻进 复合回转钻进 |
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| Coring Drilling Technology in Well-1 (main shaft) of Songliao Scientific Drilling |
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| Abstract:One target of the Well-1 of Songliao scientific drilling was to gain compound geological section of terrestrial cretaceous with high resolution, which could be comparable on a global scale. The sampling was more accurate up to 10 thousand years instead of million years time resolution in traditional geology. According to the different formations of the main shaft, cemented carbide, PDC and pregnant diamond bits with 12 structures and 2 types of single rotary and double tube core barrels were researched and developed. Disc rotary and PDM + disc rotary technologies were applied to deal with complicated formation of 163041 m in coring drilling, collection rate of 8207% was obtained in undisturbed sand sample and 9492% in coring rate. The paper detailed the difficulties in combination of core barrel structure with drilling string and coring operation, and also introduced the technical measures and the result. |
| keywords:continental scientific drilling Well-1 of Songliao scientific drilling complicated formation coring drilling compound rotary drilling |
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