中长筒取心技术与岩心地面处理技术的研究

发布时间：2018-01-20 17:38

本文关键词： 中长筒取心铝合金内筒岩心地面处理取心工具取心钻头岩心伽马扫描　出处：《东北石油大学》2017年硕士论文　论文类型：学位论文

【摘要】：中长筒取心技术与岩心地面处理技术是目前国际上应用最为广泛的取心技术,二者的结合可以实现快速高效的取心作业并获取完整的岩心资料,在降低取心作业周期,降低钻井成本,提高岩心处理分析效率方面具有巨大优势。本文瞄准国际先进的中长筒取心技术及岩心地面处理技术,对中长筒取心工具使用特点、内外筒强度和稳定性、伽马扫描技术原理等关键技术进行了系统研究和方案论证。设计研制了高强度取心工具外筒和铝合金内筒,对取心外筒进行了强度校核计算,对内筒进行了室内拉伸试验;设计研制了三种针对不同地层的高性能PDC取心钻头;对相关工具进行优化设计和现场试验,完成了岩心伽马扫描仪、辅助工具及工艺的配套研究;对中长筒取心作业流程和岩心地面处理措施进行了细化总结,形成了一套完善的中长筒取心技术工艺流程。基于本文所研制的中长筒取心技术已在国内外进行了30余口井的现场应用,累计取心进尺5083.66m,心长4849.85m,收获率95.4%;研制的岩心伽马扫描仪也累计进行岩心伽马扫描2000余米,仪器的综合性能和准确性表现良好。取心方法和效率得到不断改进和提升,为获取地下岩心资料提供了有力保障,大大提高了油气勘探开发的整体效益。
[Abstract]:In the long barrel coring technology and core ground treatment technology is currently the most widely used coring technique, the combination of the two core data can achieve fast and efficient coring operation and get the complete, in reducing the coring operation cycle, reduce drilling cost, improve the processing efficiency of the core has a huge advantage in this paper, aiming at the international advanced. The long barrel coring technique and ground treatment technology of long core barrel coring tools use characteristics, strength and stability of the inner and outer cylinders, the key technology of gamma scanning technology principle are studied and demonstrated. The design system of high strength coring tool within the outer cylinder and the Aluminum Alloy the outer barrel coring barrel, the strength checking calculation, indoor tensile test of the inner cylinder; developed three different strata of high performance PDC coring bit; optimized design and related tools The field test, completed the core gamma scanner, supporting research tool and process; the long barrel coring process and core ground treatment measures for a detailed summary, formed a perfect long barrel coring technology. Field application of coring technology developed in this paper has been in the long tube at home and abroad have made more than 30 wells based on cumulative coring footage of 5083.66m, heart 4849.85m, the harvest rate of 95.4%; the total core gamma scanner for scanning core gamma ray more than 2000 meters, the comprehensive performance and accuracy of the instrument. The good performance of coring method and efficiency of continuous improvement and upgrading, provide a strong guarantee for acquire the core data, greatly improving the overall efficiency of oil and gas exploration and development.

【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE244

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