电加热杆抽油井工艺在牛心坨油田应用研究

发布时间：2018-10-25 16:36

【摘要】：随着油田开发的深入,一些高粘度、高凝固点、高含蜡原油的开采比例越来越大。开发这些油藏采用化学、注蒸汽等工艺存在成本高、现场实施难度大的现状。为了经济高效开发这些油藏,针对稠油流动性差、对温度敏感性高的特点,采用电加热抽油杆开采技术配合其他工艺能较好地适应稠油油藏的开发。温度是影响粘度的主要原因,因此,建立井筒温度分布至关重要。粘度是评价稠油特征的核心参数,特别是在油田勘探阶段和开发初期,粘度资料往往局限在一个或几个温度点上,缺乏所需温度(如地层温度等)下的粘度数据。本文对抽油杆柱和空心抽油杆柱的设计方法做了详细的论述,通过一个井筒温度场模型,计算了在常规下的井筒温度分布,同时通过温度分布计算了井筒粘度的分布。根据现场实际的需要,本文进行了实例的计算和分析,以说明井筒温度场模型的实用性和可操作性。本文还参考了牛心坨油田使用电加热抽油所取得的实际效益,也很好地证明了电加热技术所具有的优势和价值。
[Abstract]:With the development of oil field, the ratio of high viscosity, high solidification point and high waxy crude oil is increasing. The development of these reservoirs by chemical, steam injection and other processes has a high cost and difficult to implement on the spot. In order to develop these reservoirs economically and efficiently, in view of the poor fluidity of heavy oil and the high sensitivity to temperature, the application of electric heating sucker rod production technology in combination with other technologies can better adapt to the development of heavy oil reservoirs. Temperature is the main reason to affect viscosity, so it is very important to establish wellbore temperature distribution. Viscosity is the core parameter to evaluate the characteristics of heavy oil, especially in the exploration stage and early development stage of oil field, the viscosity data are usually limited to one or several temperature points, and the viscosity data under the required temperature (such as formation temperature) are lacking. In this paper, the design method of sucker rod string and hollow sucker rod string is discussed in detail. Through a wellbore temperature field model, the wellbore temperature distribution under normal condition is calculated, and the wellbore viscosity distribution is calculated by temperature distribution. According to the actual needs of the field, this paper carries out the calculation and analysis of an example to illustrate the practicability and maneuverability of the wellbore temperature field model. This paper also refers to the actual benefits of electric heating pumping in Niuxintuo Oilfield, and also proves the advantages and value of electric heating technology.
【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】：TE933.2

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