深层侧钻水平井钻井与完井技术研究

发布时间：2018-01-16 11:39

  本文关键词：深层侧钻水平井钻井与完井技术研究　出处：《东北石油大学》2017年硕士论文　论文类型：学位论文

  更多相关文章： 深井 侧钻水平井 钻井技术

【摘要】：利用深层侧钻水平井技术不仅能使套损井、停产井、报废井、低产井等复活,改善油气藏开采效率,有效地开发各类油气藏,提高采收率和油气井产量,降低综合开发成本,而且缩短施工周期,提高综合经济效益。本文通过对造斜率分析及水平井井眼轨迹控制理论、深层水平井钻柱受力分析、深层侧钻水平井钻井与完井工艺等方面的研究,形成了一整套以可完全回收式斜向器配合复式铣锥的基本开窗方式、基于旋转导向系统的井眼轨迹渐进控制及随钻修正技术、适宜大庆深层探区使用的钻头与井下动力钻具序列、针对深层侧钻开窗侧钻水平井的事故复杂预防方案和技术措施、尾管封隔器压裂完井方式为核心的针对大庆深层探区行之有效的侧钻水平井钻井与完井方案。同时,通过一口深层双分支套管开窗侧钻水平井的现场试验,验证了本论文提出理论的正确性以及相关技术的可靠性,解决了深层探区开窗侧钻水平井井眼轨迹控制和安全钻井的难题。
[Abstract]:Using deep sidetracking horizontal well technology can not only revive casing damaged wells, shutdown wells, abandoned wells and low production wells, but also improve oil and gas reservoir production efficiency, effectively develop all kinds of oil and gas reservoirs, and increase oil and gas recovery and oil and gas well production. The comprehensive development cost is reduced, the construction period is shortened, and the comprehensive economic benefit is improved. This paper analyzes the stress of drill string in deep horizontal well by analyzing the slope making rate and the theory of horizontal wellbore trajectory control. The research on drilling and completion technology of deep sidetracking horizontal wells has formed a set of basic window opening methods with fully recoverable oblique diameters combined with compound milling cones. The technology of hole trajectory gradual control and drilling correction based on rotary guidance system is suitable for drill bit and downhole power drilling tool sequence used in deep exploration area of Daqing. Aimed at the complex accident prevention scheme and technical measures of deep sidetracking sidetracking horizontal well. The effective drilling and completion scheme of sidetracking horizontal well in deep exploration area of Daqing is the core of the fracturing completion mode of tail pipe Packer. At the same time, the field test of sidetracking horizontal well through a deep double-branch casing is carried out. The correctness of the theory and the reliability of related techniques are verified in this paper, and the problems of hole trajectory control and safe drilling in deep exploration area are solved.
【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】：TE243
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本文编号：1432903