SAGD水平井扩孔技术研究与应用

发布时间：2019-05-26 23:07

【摘要】：SAGD开发技术,是一种蒸汽驱开采方式,即向地下连续注入蒸汽加热油层,将原油驱至周围生产井中,然后采出。目前辽河油田特种油开发公司馆陶油层已全面进入SAGD开发阶段。为了满足后期热采井完井需要,满足优化井身结构,井身轨迹的需要。二开引入先领眼钻进保轨迹,后采用扩孔钻进保井身结构的先进理念。通过大直径扩孔工程现场施工的分析,可以总结出SAGD区块大直径扩孔工艺应该注意的问题。再结合大量的调研,完善该区块扩孔技术的应用,得出一套切实可行的方法。在以后大直径扩孔工程技术应用中,提供理论依据。本文分析和研究了馆陶油层在扩孔过程中可能出现的问题,并结合实际施工,提出相应的解决方案。从工具原理及设计方面入手,设计出适合馆陶油层的砂砾岩的扩孔工具。对于大直径扩孔施工,我们分析了各种可能出现的隐患,提出了一系列的解决办法。根据该项问题,我们立项研究适于砂砾岩层的随钻扩孔器,利用流体力学数值模拟软件分析,定性分析了工具内部流道设计,量化了内部压降,初步确定了内部流道的尺寸。
[Abstract]:SAGD development technology is a kind of steam drive production mode, that is, steam heating reservoir is continuously injected into the underground, crude oil is driven into the surrounding production wells, and then produced. At present, the Guantao reservoir of Liaohe Oilfield Special Oil Development Company has entered the SAGD development stage in an all-round way. In order to meet the needs of completion of hot production wells in the later stage and optimize the wellbore structure and wellbore trajectory. The second opening introduces the advanced concept of leading hole drilling and protecting track, and then reaming drilling and protecting wellbore structure. Through the analysis of the field construction of the large diameter reaming project, the problems that should be paid attention to in the large diameter reaming technology of SAGD block can be summarized. Combined with a large number of investigations, the application of reaming technology in the block is improved, and a set of feasible methods are obtained. In the future, the theoretical basis is provided in the application of large diameter reaming engineering technology. In this paper, the possible problems in the process of hole expansion in Guantao reservoir are analyzed and studied, and the corresponding solutions are put forward in combination with the actual construction. Based on the principle and design of the tool, the reaming tool of sand gravel suitable for Guantao reservoir is designed. For large diameter reaming construction, we analyze all kinds of hidden dangers and put forward a series of solutions. According to this problem, we have established a project to study the hole-while-drilling expander suitable for gravel strata. By using the numerical simulation software of fluid mechanics, the internal flow channel design of the tool is qualitatively analyzed, the internal pressure drop is quantified, and the size of the internal flow channel is preliminarily determined.
【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】：TE357.44

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