辽河油田大位移井钻完井技术研究
发布时间：2018-11-19 13:10
【摘要】：近年来,辽河油田的油气勘探开发正向滩海和浅海发展,但是由于地理环境的限制,在滩海、浅海地区采用大位移的井身结构,不仅可以节约大量资金、人力、物力,而且能够更好地开发海洋油气资源。大位移井钻井技术,是一种高精尖的钻井工艺,是当今定向井、水平井技术的综合系统工程,可广泛地应用于滩海油田、海上油田和地面条件极其复杂的油气藏的勘探开发。应用大位移井,不仅使边际小油田得以成功开发,而且极大地推动了国外先进的大位移井技术在国内的研究与应用。近年来,国内学者针对大位移井的技术难点,特别是大位移井优化设计理论、国产化配套技术、计算机应用软件技术等进行研究摸索,形成了一定的理论研究方法,然而大位移井技术在实际现场应用过程当中,由于很多因素,特别是受钻井地区特殊环境的影响,进而导致大位移井钻井技术无法达到预期的开发效果。本文首先对大位移井钻完井技术中的摩阻和扭矩进行了研究分析,得到了不同工况下摩阻扭矩的递推计算公式,并给出了降低摩阻和扭矩的方法及途径,并应用于研究区块的实例井;然后又对大位移井钻完井技术中井眼轨道设计和适用于研究区块的钻井液体系进行了研究,给出了井眼轨道设计方法和大位移井合理的钻井液密度。在以上研究的基础上,对大位移井钻完井技术进行了应用研究,对研究区块大位移井施工的难点问题进行了分析并给出了解决方法,并对大位移井的施工技术进行了研究,给出了一整套钻完井技术措施,并进行了现场应用,为大位移井技术在该地区的应用提供了理论依据和实际指导。
[Abstract]:In recent years, oil and gas exploration and development in Liaohe Oilfield have been developing towards the beach and shallow seas. However, due to the limitation of the geographical environment, the large displacement well structure in the beach and shallow water areas can not only save a lot of capital, manpower and material resources, And can better develop marine oil and gas resources. The drilling technology of extended reach well is a kind of high precision drilling technology. It is a comprehensive system engineering of directional well and horizontal well technology. It can be widely used in the exploration and development of oil and gas reservoirs in beach oil fields, offshore oil fields and extremely complex surface conditions. The application of long reach wells not only makes the marginal small oil fields develop successfully, but also promotes the research and application of advanced extended reach well technology abroad in China. In recent years, domestic scholars have studied and groped for the technical difficulties of long reach wells, especially the theory of optimization design of extended reach wells, localization matching technology, computer application software technology and so on, and formed a certain theoretical research method. However, during the practical application of the extended reach well technology, due to many factors, especially affected by the special environment in the drilling area, the drilling technology of the extended reach well can not achieve the expected development effect. In this paper, the friction and torque in the drilling and completion technology of extended reach well are studied and analyzed, and the recursion formula of friction torque under different working conditions is obtained, and the methods and ways to reduce the friction and torque are given. And it is applied to the example well of the research block. Then the well trajectory design and the drilling fluid system suitable for the study block in the drilling and completion technology of the extended reach well are studied. The design method of the borehole track and the reasonable drilling fluid density of the extended reach well are given. On the basis of the above research, the application of drilling and completion technology in extended reach well is studied, the difficult problems in the construction of long reach well in research block are analyzed, and the solving method is given, and the operation technology of long reach well is also studied. A set of drilling and completion technology measures are given, and the field application is carried out, which provides theoretical basis and practical guidance for the application of extended reach well technology in this area.
【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】：TE52
，
本文编号：2342397
[Abstract]:In recent years, oil and gas exploration and development in Liaohe Oilfield have been developing towards the beach and shallow seas. However, due to the limitation of the geographical environment, the large displacement well structure in the beach and shallow water areas can not only save a lot of capital, manpower and material resources, And can better develop marine oil and gas resources. The drilling technology of extended reach well is a kind of high precision drilling technology. It is a comprehensive system engineering of directional well and horizontal well technology. It can be widely used in the exploration and development of oil and gas reservoirs in beach oil fields, offshore oil fields and extremely complex surface conditions. The application of long reach wells not only makes the marginal small oil fields develop successfully, but also promotes the research and application of advanced extended reach well technology abroad in China. In recent years, domestic scholars have studied and groped for the technical difficulties of long reach wells, especially the theory of optimization design of extended reach wells, localization matching technology, computer application software technology and so on, and formed a certain theoretical research method. However, during the practical application of the extended reach well technology, due to many factors, especially affected by the special environment in the drilling area, the drilling technology of the extended reach well can not achieve the expected development effect. In this paper, the friction and torque in the drilling and completion technology of extended reach well are studied and analyzed, and the recursion formula of friction torque under different working conditions is obtained, and the methods and ways to reduce the friction and torque are given. And it is applied to the example well of the research block. Then the well trajectory design and the drilling fluid system suitable for the study block in the drilling and completion technology of the extended reach well are studied. The design method of the borehole track and the reasonable drilling fluid density of the extended reach well are given. On the basis of the above research, the application of drilling and completion technology in extended reach well is studied, the difficult problems in the construction of long reach well in research block are analyzed, and the solving method is given, and the operation technology of long reach well is also studied. A set of drilling and completion technology measures are given, and the field application is carried out, which provides theoretical basis and practical guidance for the application of extended reach well technology in this area.
【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】：TE52
，
本文编号：2342397
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