浅层水平井钻完井技术研究与应用

发布时间：2018-02-26 15:15

本文关键词： 浅层水平井井眼轨迹井眼净化摩阻扭矩　出处：《东北石油大学》2015年硕士论文　论文类型：学位论文

【摘要】：利用水平井钻完井技术技术开发浅层油气藏是目前国内外各大油气田积极认可的开发方式,其特点就在于投入少,产出高,经济效益明显,但浅层水平井具有诸多钻完井难点,例如:油藏埋深浅,钻浅层水平井要求较高造斜率,疏松地层大尺寸井眼钻具造斜规律难以把握,高造斜率难以保证;浅层水平井垂深浅,垂直段短,套管柱自重轻,井眼曲率高,套管刚性大,弯曲变形后会产生较大的摩阻力,造成大尺寸套管下入十分困难;油层垂深小,井段调整余量小,井眼轨迹控制精度要求高等。为了快速应用水平井技术开发浅层油藏,亟需解决以上所面临的众多难点。本文针对浅层水平井钻完井难点,进行以下几方面的研究,完成了井眼轨迹优化设计;通过摩阻扭矩形成机理的分析,完成了减摩降阻技术研究;通过造斜机理及影响因素的分析,研制了专用导向工具,完成了浅地层造斜技术研究;分析井眼净化机理,研制配套工具,完成井眼清洁技术研究;通过管柱下入性及完井管柱摩擦阻力力学模型分析,研制辅助工具,完成了完井管柱下入技术研究。以理论研究为基础,并紧密结合现场施工需要,进行相关配套工具研制,通过室内和现场试验进行验证,对浅层水平井钻完井施工阶段所面临的一些问题,进行了有针对性的解决。
[Abstract]:The use of horizontal well drilling technology and completion technology of shallow oil and gas reservoir is the major oil and gas fields at home and abroad actively recognized development mode, its characteristic lies in less input, high output, the economic benefit is obvious, but the shallow horizontal well drilling and completion has many difficulties, such as reservoir buried depth, drilling shallow horizontal well is high build rate, large size and well drilling unconsolidated formation eye deflecting law is difficult to grasp, it is difficult to ensure high building slope; shallow horizontal well vertical depth, the vertical section of the casing is short, light weight, high hole curvature, casing rigidity, bending deformation will produce friction caused by large, large size casing very difficult; the reservoir vertical depth is small, well adjusted margin small, well trajectory control technology for high precision. The rapid application of horizontal wells in shallow reservoirs, many difficulties to solve above faced. Aiming at the shallow horizontal well drilling and completion difficult Points were the following aspects of research, completed the well trajectory optimization design; through the analysis of forming mechanism of friction torque, reduce friction resistance of the technology; through the analysis of factors deflecting mechanism and influence, developed a special guiding tool, completed the shallow stratum made of oblique technology; purification mechanism analysis well, the development of the supporting tool, complete the research on clean technology of hole; through the tube and into completion pipe analysis column friction mechanical model, development tools, research into the technology of well completion pipe column is completed. Based on theoretical research, and combining with the need of on-site construction, relevant supporting tools are developed. Verified by laboratory and field tests, some problems of shallow horizontal well drilling and completion of construction stage faced, carried out a targeted solution.

【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE243

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